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This reverts commit e40e9edd5d.

TheCatHasPawsProject/CatHasPawsBusinessLogic/CatHasPawsBusinessLogic.csproj

@@ -8,6 +8,7 @@
 
 	<ItemGroup>
 		<InternalsVisibleTo Include="CatHasPawsTests" />
+		<InternalsVisibleTo Include="CatHasPawsWebApi" />
 		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
 	</ItemGroup>
 

TheCatHasPawsProject/CatHasPawsBusinessLogic/Implementations/PostBusinessLogicContract.cs

@@ -13,10 +13,10 @@ internal class PostBusinessLogicContract(IPostStorageContract postStorageContrac
 	private readonly ILogger _logger = logger;
 	private readonly IPostStorageContract _postStorageContract = postStorageContract;
 
-	public List<PostDataModel> GetAllPosts(bool onlyActive = true)
+	public List<PostDataModel> GetAllPosts()
 	{
-		_logger.LogInformation("GetAllPosts params: {onlyActive}", onlyActive);
-		return _postStorageContract.GetList(onlyActive) ?? throw new NullListException();
+		_logger.LogInformation("GetAllPosts");
+		return _postStorageContract.GetList() ?? throw new NullListException();
 	}
 
 	public List<PostDataModel> GetAllDataOfPost(string postId)

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/IBuyerAdapter.cs

@@ -0,0 +1,17 @@
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.BindingModels;
+
+namespace CatHasPawsContratcs.AdapterContracts;
+
+public interface IBuyerAdapter
+{
+	BuyerOperationResponse GetList();
+
+	BuyerOperationResponse GetElement(string data);
+
+	BuyerOperationResponse RegisterBuyer(BuyerBindingModel buyerModel);
+
+	BuyerOperationResponse ChangeBuyerInfo(BuyerBindingModel buyerModel);
+
+	BuyerOperationResponse RemoveBuyer(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/IManufacturerAdapter.cs

@@ -0,0 +1,17 @@
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.BindingModels;
+
+namespace CatHasPawsContratcs.AdapterContracts;
+
+public interface IManufacturerAdapter
+{
+	ManufacturerOperationResponse GetList();
+
+	ManufacturerOperationResponse GetElement(string data);
+
+	ManufacturerOperationResponse RegisterManufacturer(ManufacturerBindingModel manufacturerModel);
+
+	ManufacturerOperationResponse ChangeManufacturerInfo(ManufacturerBindingModel manufacturerModel);
+
+	ManufacturerOperationResponse RemoveManufacturer(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/IPostAdapter.cs

@@ -0,0 +1,21 @@
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.BindingModels;
+
+namespace CatHasPawsContratcs.AdapterContracts;
+
+public interface IPostAdapter
+{
+	PostOperationResponse GetList();
+
+	PostOperationResponse GetHistory(string id);
+
+	PostOperationResponse GetElement(string data);
+
+	PostOperationResponse RegisterPost(PostBindingModel postModel);
+
+	PostOperationResponse ChangePostInfo(PostBindingModel postModel);
+
+	PostOperationResponse RemovePost(string id);
+
+	PostOperationResponse RestorePost(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/IProductAdapter.cs

@@ -0,0 +1,21 @@
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.BindingModels;
+
+namespace CatHasPawsContratcs.AdapterContracts;
+
+public interface IProductAdapter
+{
+	ProductOperationResponse GetList(bool includeDeleted);
+
+	ProductOperationResponse GetManufacturerList(string id, bool includeDeleted);
+
+	ProductOperationResponse GetHistory(string id);
+
+	ProductOperationResponse GetElement(string data);
+
+	ProductOperationResponse RegisterProduct(ProductBindingModel productModel);
+
+	ProductOperationResponse ChangeProductInfo(ProductBindingModel productModel);
+
+	ProductOperationResponse RemoveProduct(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/ISaleAdapter.cs

@@ -0,0 +1,21 @@
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.BindingModels;
+
+namespace CatHasPawsContratcs.AdapterContracts;
+
+public interface ISaleAdapter
+{
+	SaleOperationResponse GetList(DateTime fromDate, DateTime toDate);
+
+	SaleOperationResponse GetWorkerList(string id, DateTime fromDate, DateTime toDate);
+
+	SaleOperationResponse GetBuyerList(string id, DateTime fromDate, DateTime toDate);
+
+	SaleOperationResponse GetProductList(string id, DateTime fromDate, DateTime toDate);
+
+	SaleOperationResponse GetElement(string id);
+
+	SaleOperationResponse MakeSale(SaleBindingModel saleModel);
+
+	SaleOperationResponse CancelSale(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/IWorkerAdapter.cs

@@ -0,0 +1,23 @@
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.BindingModels;
+
+namespace CatHasPawsContratcs.AdapterContracts;
+
+public interface IWorkerAdapter
+{
+	WorkerOperationResponse GetList(bool includeDeleted);
+
+	WorkerOperationResponse GetPostList(string id, bool includeDeleted);
+
+	WorkerOperationResponse GetListByBirthDate(DateTime fromDate, DateTime toDate, bool includeDeleted);
+
+	WorkerOperationResponse GetListByEmploymentDate(DateTime fromDate, DateTime toDate, bool includeDeleted);
+
+	WorkerOperationResponse GetElement(string data);
+
+	WorkerOperationResponse RegisterWorker(WorkerBindingModel workerModel);
+
+	WorkerOperationResponse ChangeWorkerInfo(WorkerBindingModel workerModel);
+
+	WorkerOperationResponse RemoveWorker(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/OperationResponses/BuyerOperationResponse.cs

@@ -0,0 +1,19 @@
+using CatHasPawsContratcs.Infrastructure;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsContratcs.AdapterContracts.OperationResponses;
+
+public class BuyerOperationResponse : OperationResponse
+{
+	public static BuyerOperationResponse OK(List<BuyerViewModel> data) => OK<BuyerOperationResponse, List<BuyerViewModel>>(data);
+
+	public static BuyerOperationResponse OK(BuyerViewModel data) => OK<BuyerOperationResponse, BuyerViewModel>(data);
+
+	public static BuyerOperationResponse NoContent() => NoContent<BuyerOperationResponse>();
+
+	public static BuyerOperationResponse BadRequest(string message) => BadRequest<BuyerOperationResponse>(message);
+
+	public static BuyerOperationResponse NotFound(string message) => NotFound<BuyerOperationResponse>(message);
+
+	public static BuyerOperationResponse InternalServerError(string message) => InternalServerError<BuyerOperationResponse>(message);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/OperationResponses/ManufacturerOperationResponse.cs

@@ -0,0 +1,19 @@
+using CatHasPawsContratcs.Infrastructure;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsContratcs.AdapterContracts.OperationResponses;
+
+public class ManufacturerOperationResponse : OperationResponse
+{
+	public static ManufacturerOperationResponse OK(List<ManufacturerViewModel> data) => OK<ManufacturerOperationResponse, List<ManufacturerViewModel>>(data);
+
+	public static ManufacturerOperationResponse OK(ManufacturerViewModel data) => OK<ManufacturerOperationResponse, ManufacturerViewModel>(data);
+
+	public static ManufacturerOperationResponse NoContent() => NoContent<ManufacturerOperationResponse>();
+
+	public static ManufacturerOperationResponse NotFound(string message) => NotFound<ManufacturerOperationResponse>(message);
+
+	public static ManufacturerOperationResponse BadRequest(string message) => BadRequest<ManufacturerOperationResponse>(message);
+
+	public static ManufacturerOperationResponse InternalServerError(string message) => InternalServerError<ManufacturerOperationResponse>(message);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/OperationResponses/PostOperationResponse.cs

@@ -0,0 +1,19 @@
+using CatHasPawsContratcs.Infrastructure;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsContratcs.AdapterContracts.OperationResponses;
+
+public class PostOperationResponse : OperationResponse
+{
+	public static PostOperationResponse OK(List<PostViewModel> data) => OK<PostOperationResponse, List<PostViewModel>>(data);
+
+	public static PostOperationResponse OK(PostViewModel data) => OK<PostOperationResponse, PostViewModel>(data);
+
+	public static PostOperationResponse NoContent() => NoContent<PostOperationResponse>();
+
+	public static PostOperationResponse NotFound(string message) => NotFound<PostOperationResponse>(message);
+
+	public static PostOperationResponse BadRequest(string message) => BadRequest<PostOperationResponse>(message);
+
+	public static PostOperationResponse InternalServerError(string message) => InternalServerError<PostOperationResponse>(message);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/OperationResponses/ProductOperationResponse.cs

@@ -0,0 +1,21 @@
+using CatHasPawsContratcs.Infrastructure;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsContratcs.AdapterContracts.OperationResponses;
+
+public class ProductOperationResponse : OperationResponse
+{
+	public static ProductOperationResponse OK(List<ProductViewModel> data) => OK<ProductOperationResponse, List<ProductViewModel>>(data);
+
+	public static ProductOperationResponse OK(List<ProductHistoryViewModel> data) => OK<ProductOperationResponse, List<ProductHistoryViewModel>>(data);
+
+	public static ProductOperationResponse OK(ProductViewModel data) => OK<ProductOperationResponse, ProductViewModel>(data);
+
+	public static ProductOperationResponse NoContent() => NoContent<ProductOperationResponse>();
+
+	public static ProductOperationResponse NotFound(string message) => NotFound<ProductOperationResponse>(message);
+
+	public static ProductOperationResponse BadRequest(string message) => BadRequest<ProductOperationResponse>(message);
+
+	public static ProductOperationResponse InternalServerError(string message) => InternalServerError<ProductOperationResponse>(message);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/OperationResponses/SaleOperationResponse.cs

@@ -0,0 +1,19 @@
+using CatHasPawsContratcs.Infrastructure;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsContratcs.AdapterContracts.OperationResponses;
+
+public class SaleOperationResponse : OperationResponse
+{
+	public static SaleOperationResponse OK(List<SaleViewModel> data) => OK<SaleOperationResponse, List<SaleViewModel>>(data);
+
+	public static SaleOperationResponse OK(SaleViewModel data) => OK<SaleOperationResponse, SaleViewModel>(data);
+
+	public static SaleOperationResponse NoContent() => NoContent<SaleOperationResponse>();
+
+	public static SaleOperationResponse NotFound(string message) => NotFound<SaleOperationResponse>(message);
+
+	public static SaleOperationResponse BadRequest(string message) => BadRequest<SaleOperationResponse>(message);
+
+	public static SaleOperationResponse InternalServerError(string message) => InternalServerError<SaleOperationResponse>(message);
+}

TheCatHasPawsProject/CatHasPawsContratcs/AdapterContracts/OperationResponses/WorkerOperationResponse.cs

@@ -0,0 +1,19 @@
+using CatHasPawsContratcs.Infrastructure;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsContratcs.AdapterContracts.OperationResponses;
+
+public class WorkerOperationResponse : OperationResponse
+{
+	public static WorkerOperationResponse OK(List<WorkerViewModel> data) => OK<WorkerOperationResponse, List<WorkerViewModel>>(data);
+
+	public static WorkerOperationResponse OK(WorkerViewModel data) => OK<WorkerOperationResponse, WorkerViewModel>(data);
+
+	public static WorkerOperationResponse NoContent() => NoContent<WorkerOperationResponse>();
+
+	public static WorkerOperationResponse NotFound(string message) => NotFound<WorkerOperationResponse>(message);
+
+	public static WorkerOperationResponse BadRequest(string message) => BadRequest<WorkerOperationResponse>(message);
+
+	public static WorkerOperationResponse InternalServerError(string message) => InternalServerError<WorkerOperationResponse>(message);
+}

TheCatHasPawsProject/CatHasPawsContratcs/BindingModels/BuyerBindingModel.cs

@@ -0,0 +1,12 @@
+namespace CatHasPawsContratcs.BindingModels;
+
+public class BuyerBindingModel
+{
+	public string? Id { get; set; }
+
+	public string? FIO { get; set; }
+
+	public string? PhoneNumber { get; set; }
+
+	public double DiscountSize { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/BindingModels/ManufacturerBindingModel.cs

@@ -0,0 +1,8 @@
+namespace CatHasPawsContratcs.BindingModels;
+
+public class ManufacturerBindingModel
+{
+	public string? Id { get; set; }
+
+	public string? ManufacturerName { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/BindingModels/PostBindingModel.cs

@@ -0,0 +1,14 @@
+namespace CatHasPawsContratcs.BindingModels;
+
+public class PostBindingModel
+{
+	public string? Id { get; set; }
+
+	public string? PostId => Id;
+
+	public string? PostName { get; set; }
+
+	public string? PostType { get; set; }
+
+	public double Salary { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/BindingModels/ProductBindingModel.cs

@@ -0,0 +1,14 @@
+namespace CatHasPawsContratcs.BindingModels;
+
+public class ProductBindingModel
+{
+	public string? Id { get; set; }
+
+	public string? ProductName { get; set; }
+
+	public string? ProductType { get; set; }
+
+	public string? ManufacturerId { get; set; }
+
+	public double Price { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/BindingModels/SaleBindingModel.cs

@@ -0,0 +1,14 @@
+namespace CatHasPawsContratcs.BindingModels;
+
+public class SaleBindingModel
+{
+	public string? Id { get; set; }
+
+	public string? WorkerId { get; set; }
+
+	public string? BuyerId { get; set; }
+
+	public int DiscountType { get; set; }
+
+	public List<SaleProductBindingModel>? Products { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/BindingModels/SaleProductBindingModel.cs

@@ -0,0 +1,12 @@
+namespace CatHasPawsContratcs.BindingModels;
+
+public class SaleProductBindingModel
+{
+	public string? SaleId { get; set; }
+
+	public string? ProductId { get; set; }
+
+	public int Count { get; set; }
+
+	public double Price { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/BindingModels/WorkerBindingModel.cs

@@ -0,0 +1,14 @@
+namespace CatHasPawsContratcs.BindingModels;
+
+public class WorkerBindingModel
+{
+	public string? Id { get; set; }
+
+	public string? FIO { get; set; }
+
+	public string? PostId { get; set; }
+
+	public DateTime BirthDate { get; set; }
+
+	public DateTime EmploymentDate { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/BusinessLogicsContracts/IPostBusinessLogicContract.cs

@@ -4,7 +4,7 @@ namespace CatHasPawsContratcs.BusinessLogicsContracts;
 
 public interface IPostBusinessLogicContract
 {
-	List<PostDataModel> GetAllPosts(bool onlyActive);
+	List<PostDataModel> GetAllPosts();
 
 	List<PostDataModel> GetAllDataOfPost(string postId);
 

TheCatHasPawsProject/CatHasPawsContratcs/CatHasPawsContratcs.csproj

@@ -6,4 +6,9 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Abstractions" Version="2.3.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.3.0" />
+  </ItemGroup>
+
 </Project>

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/ManufacturerDataModel.cs

@@ -14,6 +14,8 @@ public class ManufacturerDataModel(string id, string manufacturerName, string? p
 
 	public string? PrevPrevManufacturerName { get; private set; } = prevPrevManufacturerName;
 
+	public ManufacturerDataModel(string id, string manufacturerName) : this(id, manufacturerName, null, null) { }
+
 	public void Validate()
 	{
 		if (Id.IsEmpty())

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/PostDataModel.cs

@@ -5,9 +5,9 @@ using CatHasPawsContratcs.Infrastructure;
 
 namespace CatHasPawsContratcs.DataModels;
 
-public class PostDataModel(string id, string postName, PostType postType, double salary, bool isActual, DateTime changeDate) : IValidation
+public class PostDataModel(string postId, string postName, PostType postType, double salary) : IValidation
 {
-	public string Id { get; private set; } = id;
+	public string Id { get; private set; } = postId;
 
 	public string PostName { get; private set; } = postName;
 
@@ -15,10 +15,6 @@ public class PostDataModel(string id, string postName, PostType postType, double
 
 	public double Salary { get; private set; } = salary;
 
-	public bool IsActual { get; private set; } = isActual;
-
-	public DateTime ChangeDate { get; private set; } = changeDate;
-
 	public void Validate()
 	{
 		if (Id.IsEmpty())

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/ProductDataModel.cs

@@ -7,6 +7,8 @@ namespace CatHasPawsContratcs.DataModels;
 
 public class ProductDataModel(string id, string productName, ProductType productType, string manufacturerId, double price, bool isDeleted) : IValidation
 {
+	private readonly ManufacturerDataModel? _manufacturer;
+
 	public string Id { get; private set; } = id;
 
 	public string ProductName { get; private set; } = productName;
@@ -19,6 +21,15 @@ public class ProductDataModel(string id, string productName, ProductType product
 
 	public bool IsDeleted { get; private set; } = isDeleted;
 
+	public string ManufacturerName => _manufacturer?.ManufacturerName ?? string.Empty;
+
+	public ProductDataModel(string id, string productName, ProductType productType, string manufacturerId, double price, bool isDeleted, ManufacturerDataModel manufacturer) : this(id, productName, productType, manufacturerId, price, isDeleted)
+	{
+		_manufacturer = manufacturer;
+	}
+
+	public ProductDataModel(string id, string productName, ProductType productType, string manufacturerId, double price) : this(id, productName, productType, manufacturerId, price, false) { }
+
 	public void Validate()
 	{
 		if (Id.IsEmpty())

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/ProductHistoryDataModel.cs

@@ -6,12 +6,22 @@ namespace CatHasPawsContratcs.DataModels;
 
 public class ProductHistoryDataModel(string productId, double oldPrice) : IValidation
 {
+	private readonly ProductDataModel? _product;
+
 	public string ProductId { get; private set; } = productId;
 
 	public double OldPrice { get; private set; } = oldPrice;
 
 	public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;
 
+	public string ProductName => _product?.ProductName ?? string.Empty;
+
+	public ProductHistoryDataModel(string productId, double oldPrice, DateTime changeDate, ProductDataModel product) : this(productId, oldPrice)
+	{
+		ChangeDate = changeDate;
+		_product = product;
+	}
+
 	public void Validate()
 	{
 		if (ProductId.IsEmpty())

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/SaleDataModel.cs

@@ -5,25 +5,76 @@ using CatHasPawsContratcs.Infrastructure;
 
 namespace CatHasPawsContratcs.DataModels;
 
-public class SaleDataModel(string id, string workerId, string? buyerId, double sum, DiscountType discountType, double discount, bool isCancel, List<SaleProductDataModel> products) : IValidation
+public class SaleDataModel : IValidation
 {
-	public string Id { get; private set; } = id;
+	private readonly BuyerDataModel? _buyer;
 
-	public string WorkerId { get; private set; } = workerId;
+	private readonly WorkerDataModel? _worker;
 
-	public string? BuyerId { get; private set; } = buyerId;
+	public string Id { get; private set; }
+
+	public string WorkerId { get; private set; }
+
+	public string? BuyerId { get; private set; }
 
 	public DateTime SaleDate { get; private set; } = DateTime.UtcNow;
 
-	public double Sum { get; private set; } = sum;
+	public double Sum { get; private set; }
 
-	public DiscountType DiscountType { get; private set; } = discountType;
+	public DiscountType DiscountType { get; private set; }
 
-	public double Discount { get; private set; } = discount;
+	public double Discount { get; private set; }
 
-	public bool IsCancel { get; private set; } = isCancel;
+	public bool IsCancel { get; private set; }
 
-	public List<SaleProductDataModel> Products { get; private set; } = products;
+	public List<SaleProductDataModel>? Products { get; private set; }
+
+	public string BuyerFIO => _buyer?.FIO ?? string.Empty;
+
+	public string WorkerFIO => _worker?.FIO ?? string.Empty;
+
+	public SaleDataModel(string id, string workerId, string? buyerId, DiscountType discountType, bool isCancel, List<SaleProductDataModel> saleProducts)
+	{
+		Id = id;
+		WorkerId = workerId;
+		BuyerId = buyerId;
+		DiscountType = discountType;
+		IsCancel = isCancel;
+		Products = saleProducts;
+		var percent = 0.0;
+		foreach (DiscountType elem in Enum.GetValues<DiscountType>())
+		{
+			if ((elem & discountType) != 0)
+			{
+				switch (elem)
+				{
+					case DiscountType.None:
+						break;
+					case DiscountType.OnSale:
+						percent += 0.1;
+						break;
+					case DiscountType.RegularCustomer:
+						percent += 0.5;
+						break;
+					case DiscountType.Certificate:
+						percent += 0.3;
+						break;
+				}
+			}
+		}
+		Sum = Products?.Sum(x => x.Price * x.Count) ?? 0;
+		Discount = Sum * percent;
+	}
+
+	public SaleDataModel(string id, string workerId, string? buyerId, double sum, DiscountType discountType, double discount, bool isCancel, List<SaleProductDataModel> saleProducts, WorkerDataModel worker, BuyerDataModel? buyer) : this(id, workerId, buyerId, discountType, isCancel, saleProducts)
+	{
+		Sum = sum;
+		Discount = discount;
+		_worker = worker;
+		_buyer = buyer;
+	}
+
+	public SaleDataModel(string id, string workerId, string? buyerId, int discountType, List<SaleProductDataModel> products) : this(id, workerId, buyerId, (DiscountType)discountType, false, products) { }
 
 	public void Validate()
 	{

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/SaleProductDataModel.cs

@@ -4,14 +4,25 @@ using CatHasPawsContratcs.Infrastructure;
 
 namespace CatHasPawsContratcs.DataModels;
 
-public class SaleProductDataModel(string saleId, string productId, int count) : IValidation
+public class SaleProductDataModel(string saleId, string productId, int count, double price) : IValidation
 {
+	private readonly ProductDataModel? _product;
+
 	public string SaleId { get; private set; } = saleId;
 
 	public string ProductId { get; private set; } = productId;
 
 	public int Count { get; private set; } = count;
 
+	public double Price { get; private set; } = price;
+
+	public string ProductName => _product?.ProductName ?? string.Empty;
+
+	public SaleProductDataModel(string saleId, string productId, int count, double price, ProductDataModel product) : this(saleId, productId, count, price)
+	{
+		_product = product;
+	}
+
 	public void Validate()
 	{
 		if (SaleId.IsEmpty())
@@ -28,5 +39,8 @@ public class SaleProductDataModel(string saleId, string productId, int count) :
 
 		if (Count <= 0)
 			throw new ValidationException("Field Count is less than or equal to 0");
+
+		if (Price <= 0)
+			throw new ValidationException("Field Price is less than or equal to 0");
 	}
 }

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/WorkerDataModel.cs

@@ -6,6 +6,8 @@ namespace CatHasPawsContratcs.DataModels;
 
 public class WorkerDataModel(string id, string fio, string postId, DateTime birthDate, DateTime employmentDate, bool isDeleted) : IValidation
 {
+	private readonly PostDataModel? _post;
+
 	public string Id { get; private set; } = id;
 
 	public string FIO { get; private set; } = fio;
@@ -18,6 +20,15 @@ public class WorkerDataModel(string id, string fio, string postId, DateTime birt
 
 	public bool IsDeleted { get; private set; } = isDeleted;
 
+	public string PostName => _post?.PostName ?? string.Empty;
+
+	public WorkerDataModel(string id, string fio, string postId, DateTime birthDate, DateTime employmentDate, bool isDeleted, PostDataModel post) : this(id, fio, postId, birthDate, employmentDate, isDeleted)
+	{
+		_post = post;
+	}
+
+	public WorkerDataModel(string id, string fio, string postId, DateTime birthDate, DateTime employmentDate) : this(id, fio, postId, birthDate, employmentDate, false) { }
+
 	public void Validate()
 	{
 		if (Id.IsEmpty())

TheCatHasPawsProject/CatHasPawsContratcs/Exceptions/ElementDeletedException.cs

@@ -0,0 +1,6 @@
+namespace CatHasPawsContratcs.Exceptions;
+
+public class ElementDeletedException : Exception
+{
+	public ElementDeletedException(string id) : base($"Cannot modify a deleted item (id: {id})") { }
+}

TheCatHasPawsProject/CatHasPawsContratcs/Infrastructure/IConfigurationDatabase.cs

@@ -0,0 +1,6 @@
+namespace CatHasPawsContratcs.Infrastructure;
+
+public interface IConfigurationDatabase
+{
+	string ConnectionString { get; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/Infrastructure/OperationResponse.cs

@@ -0,0 +1,37 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using System.Net;
+
+namespace CatHasPawsContratcs.Infrastructure;
+
+public class OperationResponse
+{
+	protected HttpStatusCode StatusCode { get; set; }
+
+	protected object? Result { get; set; }
+
+	public IActionResult GetResponse(HttpRequest request, HttpResponse response)
+	{
+		ArgumentNullException.ThrowIfNull(request);
+		ArgumentNullException.ThrowIfNull(response);
+
+		response.StatusCode = (int)StatusCode;
+
+		if (Result is null)
+		{
+			return new StatusCodeResult((int)StatusCode);
+		}
+
+		return new ObjectResult(Result);
+	}
+
+	protected static TResult OK<TResult, TData>(TData data) where TResult : OperationResponse, new() => new() { StatusCode = HttpStatusCode.OK, Result = data };
+
+	protected static TResult NoContent<TResult>() where TResult : OperationResponse, new() => new() { StatusCode = HttpStatusCode.NoContent };
+
+	protected static TResult BadRequest<TResult>(string? errorMessage = null) where TResult : OperationResponse, new() => new() { StatusCode = HttpStatusCode.BadRequest, Result = errorMessage };
+
+	protected static TResult NotFound<TResult>(string? errorMessage = null) where TResult : OperationResponse, new() => new() { StatusCode = HttpStatusCode.NotFound, Result = errorMessage };
+
+	protected static TResult InternalServerError<TResult>(string? errorMessage = null) where TResult : OperationResponse, new() => new() { StatusCode = HttpStatusCode.InternalServerError, Result = errorMessage };
+}

TheCatHasPawsProject/CatHasPawsContratcs/StoragesContracts/IPostStorageContract.cs

@@ -4,7 +4,7 @@ namespace CatHasPawsContratcs.StoragesContracts;
 
 public interface IPostStorageContract
 {
-	List<PostDataModel> GetList(bool onlyActual = true);
+	List<PostDataModel> GetList();
 
 	List<PostDataModel> GetPostWithHistory(string postId);
 

TheCatHasPawsProject/CatHasPawsContratcs/ViewModels/BuyerViewModel.cs

@@ -0,0 +1,12 @@
+namespace CatHasPawsContratcs.ViewModels;
+
+public class BuyerViewModel
+{
+	public required string Id { get; set; }
+
+	public required string FIO { get; set; }
+
+	public required string PhoneNumber { get; set; }
+
+	public double DiscountSize { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/ViewModels/ManufacturerViewModel.cs

@@ -0,0 +1,12 @@
+namespace CatHasPawsContratcs.ViewModels;
+
+public class ManufacturerViewModel
+{
+	public required string Id { get; set; }
+
+	public required string ManufacturerName { get; set; }
+
+	public string? PrevManufacturerName { get; set; }
+
+	public string? PrevPrevManufacturerName { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/ViewModels/PostViewModel.cs

@@ -0,0 +1,12 @@
+namespace CatHasPawsContratcs.ViewModels;
+
+public class PostViewModel
+{
+	public required string Id { get; set; }
+
+	public required string PostName { get; set; }
+
+	public required string PostType { get; set; }
+
+	public double Salary { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/ViewModels/ProductHistoryViewModel.cs

@@ -0,0 +1,10 @@
+namespace CatHasPawsContratcs.ViewModels;
+
+public class ProductHistoryViewModel
+{
+	public required string ProductName { get; set; }
+
+	public double OldPrice { get; set; }
+
+	public DateTime ChangeDate { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/ViewModels/ProductViewModel.cs

@@ -0,0 +1,18 @@
+namespace CatHasPawsContratcs.ViewModels;
+
+public class ProductViewModel
+{
+	public required string Id { get; set; }
+
+	public required string ProductName { get; set; }
+
+	public required string ManufacturerId { get; set; }
+
+	public required string ManufacturerName { get; set; }
+
+	public required string ProductType { get; set; }
+
+	public double Price { get; set; }
+
+	public bool IsDeleted { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/ViewModels/SaleProductViewModel.cs

@@ -0,0 +1,12 @@
+namespace CatHasPawsContratcs.ViewModels;
+
+public class SaleProductViewModel
+{
+	public required string ProductId { get; set; }
+
+	public required string ProductName { get; set; }
+
+	public int Count { get; set; }
+
+	public double Price { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/ViewModels/SaleViewModel.cs

@@ -0,0 +1,26 @@
+namespace CatHasPawsContratcs.ViewModels;
+
+public class SaleViewModel
+{
+	public required string Id { get; set; }
+
+	public required string WorkerId { get; set; }
+
+	public required string WorkerFIO { get; set; }
+
+	public string? BuyerId { get; set; }
+
+	public string? BuyerFIO { get; set; }
+
+	public DateTime SaleDate { get; set; }
+
+	public double Sum { get; set; }
+
+	public required string DiscountType { get; set; }
+
+	public double Discount { get; set; }
+
+	public bool IsCancel { get; set; }
+
+	public required List<SaleProductViewModel> Products { get; set; }
+}

TheCatHasPawsProject/CatHasPawsContratcs/ViewModels/WorkerViewModel.cs

@@ -0,0 +1,18 @@
+namespace CatHasPawsContratcs.ViewModels;
+
+public class WorkerViewModel
+{
+	public required string Id { get; set; }
+
+	public required string FIO { get; set; }
+
+	public required string PostId { get; set; }
+
+	public required string PostName { get; set; }
+
+	public bool IsDeleted { get; set; }
+
+	public DateTime BirthDate { get; set; }
+
+	public DateTime EmploymentDate { get; set; }
+}

TheCatHasPawsProject/CatHasPawsDatabase/CatHasPawsDatabase.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AutoMapper" Version="14.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.2" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\CatHasPawsContratcs\CatHasPawsContratcs.csproj" />
+  </ItemGroup>
+
+	<ItemGroup>
+		<InternalsVisibleTo Include="CatHasPawsTests" />
+		<InternalsVisibleTo Include="CatHasPawsWebApi" />
+		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
+	</ItemGroup>
+
+</Project>

TheCatHasPawsProject/CatHasPawsDatabase/CatHasPawsDbContext.cs

@@ -0,0 +1,78 @@
+using CatHasPawsContratcs.Infrastructure;
+using CatHasPawsDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CatHasPawsDatabase;
+
+internal class CatHasPawsDbContext : DbContext
+{
+	private readonly IConfigurationDatabase? _configurationDatabase;
+
+	public CatHasPawsDbContext(IConfigurationDatabase configurationDatabase)
+	{
+		_configurationDatabase = configurationDatabase;
+		AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+		AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true);
+	}
+
+	protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+	{
+		optionsBuilder.UseNpgsql(_configurationDatabase?.ConnectionString, o => o.SetPostgresVersion(12, 2));
+		base.OnConfiguring(optionsBuilder);
+	}
+
+	protected override void OnModelCreating(ModelBuilder modelBuilder)
+	{
+		base.OnModelCreating(modelBuilder);
+
+		modelBuilder.Entity<Buyer>().HasIndex(x => x.PhoneNumber).IsUnique();
+
+		modelBuilder.Entity<Sale>()
+			.HasOne(e => e.Buyer)
+			.WithMany(e => e.Sales)
+			.OnDelete(DeleteBehavior.SetNull);
+
+		modelBuilder.Entity<Manufacturer>().HasIndex(x => x.ManufacturerName).IsUnique();
+
+		modelBuilder.Entity<Post>()
+			.HasIndex(e => new { e.PostName, e.IsActual })
+			.IsUnique()
+			.HasFilter($"\"{nameof(Post.IsActual)}\" = TRUE");
+
+		modelBuilder.Entity<Post>()
+			.HasIndex(e => new { e.PostId, e.IsActual })
+			.IsUnique()
+			.HasFilter($"\"{nameof(Post.IsActual)}\" = TRUE");
+
+		modelBuilder.Entity<Product>()
+			.HasIndex(x => new { x.ProductName, x.IsDeleted })
+			.IsUnique()
+			.HasFilter($"\"{nameof(Product.IsDeleted)}\" = FALSE");
+
+		modelBuilder
+			.Entity<Product>()
+			.HasOne(e => e.Manufacturer)
+			.WithMany(e => e.Products)
+			.OnDelete(DeleteBehavior.Restrict);
+
+		modelBuilder.Entity<SaleProduct>().HasKey(x => new { x.SaleId, x.ProductId });
+	}
+
+	public DbSet<Buyer> Buyers { get; set; }
+
+	public DbSet<Manufacturer> Manufacturers { get; set; }
+
+	public DbSet<Post> Posts { get; set; }
+
+	public DbSet<Product> Products { get; set; }
+
+	public DbSet<ProductHistory> ProductHistories { get; set; }
+
+	public DbSet<Salary> Salaries { get; set; }
+
+	public DbSet<Sale> Sales { get; set; }
+
+	public DbSet<SaleProduct> SaleProducts { get; set; }
+
+	public DbSet<Worker> Workers { get; set; }
+}

TheCatHasPawsProject/CatHasPawsDatabase/Implementations/BuyerStorageContract.cs

@@ -0,0 +1,149 @@
+using AutoMapper;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using CatHasPawsDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+
+namespace CatHasPawsDatabase.Implementations;
+
+internal class BuyerStorageContract : IBuyerStorageContract
+{
+	private readonly CatHasPawsDbContext _dbContext;
+	private readonly Mapper _mapper;
+
+	public BuyerStorageContract(CatHasPawsDbContext catHasPawsDbContext)
+	{
+		_dbContext = catHasPawsDbContext;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<Buyer, BuyerDataModel>();
+			cfg.CreateMap<BuyerDataModel, Buyer>();
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public List<BuyerDataModel> GetList()
+	{
+		try
+		{
+			return [.. _dbContext.Buyers.Select(x => _mapper.Map<BuyerDataModel>(x))];
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public BuyerDataModel? GetElementById(string id)
+	{
+		try
+		{
+			return _mapper.Map<BuyerDataModel>(GetBuyerById(id));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public BuyerDataModel? GetElementByFIO(string fio)
+	{
+		try
+		{
+			return _mapper.Map<BuyerDataModel>(_dbContext.Buyers.FirstOrDefault(x => x.FIO == fio));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public BuyerDataModel? GetElementByPhoneNumber(string phoneNumber)
+	{
+		try
+		{
+			return _mapper.Map<BuyerDataModel>(_dbContext.Buyers.FirstOrDefault(x => x.PhoneNumber == phoneNumber));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void AddElement(BuyerDataModel buyerDataModel)
+	{
+		try
+		{
+			_dbContext.Buyers.Add(_mapper.Map<Buyer>(buyerDataModel));
+			_dbContext.SaveChanges();
+		}
+		catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("Id", buyerDataModel.Id);
+		}
+		catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Buyers_PhoneNumber" })
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("PhoneNumber", buyerDataModel.PhoneNumber);
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void UpdElement(BuyerDataModel buyerDataModel)
+	{
+		try
+		{
+			var element = GetBuyerById(buyerDataModel.Id) ?? throw new ElementNotFoundException(buyerDataModel.Id);
+			_dbContext.Buyers.Update(_mapper.Map(buyerDataModel, element));
+			_dbContext.SaveChanges();
+		}
+		catch (ElementNotFoundException)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+		catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Buyers_PhoneNumber" })
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("PhoneNumber", buyerDataModel.PhoneNumber);
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void DelElement(string id)
+	{
+		try
+		{
+			var element = GetBuyerById(id) ?? throw new ElementNotFoundException(id);
+			_dbContext.Buyers.Remove(element);
+			_dbContext.SaveChanges();
+		}
+		catch (ElementNotFoundException)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	private Buyer? GetBuyerById(string id) => _dbContext.Buyers.FirstOrDefault(x => x.Id == id);
+}

TheCatHasPawsProject/CatHasPawsDatabase/Implementations/ManufacturerStorageContract.cs

@@ -0,0 +1,156 @@
+using AutoMapper;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using CatHasPawsDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+
+namespace CatHasPawsDatabase.Implementations;
+
+internal class ManufacturerStorageContract : IManufacturerStorageContract
+{
+	private readonly CatHasPawsDbContext _dbContext;
+	private readonly Mapper _mapper;
+
+	public ManufacturerStorageContract(CatHasPawsDbContext dbContext)
+	{
+		_dbContext = dbContext;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<Manufacturer, ManufacturerDataModel>();
+			cfg.CreateMap<ManufacturerDataModel, Manufacturer>();
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public List<ManufacturerDataModel> GetList()
+	{
+		try
+		{
+			return [.. _dbContext.Manufacturers.Select(x => _mapper.Map<ManufacturerDataModel>(x))];
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public ManufacturerDataModel? GetElementById(string id)
+	{
+		try
+		{
+			return _mapper.Map<ManufacturerDataModel>(GetManufacturerById(id));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public ManufacturerDataModel? GetElementByName(string name)
+	{
+		try
+		{
+			return _mapper.Map<ManufacturerDataModel>(_dbContext.Manufacturers.FirstOrDefault(x => x.ManufacturerName == name));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public ManufacturerDataModel? GetElementByOldName(string name)
+	{
+		try
+		{
+			return _mapper.Map<ManufacturerDataModel>(_dbContext.Manufacturers.FirstOrDefault(x => x.PrevManufacturerName == name ||
+				x.PrevPrevManufacturerName == name));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void AddElement(ManufacturerDataModel manufacturerDataModel)
+	{
+		try
+		{
+			_dbContext.Manufacturers.Add(_mapper.Map<Manufacturer>(manufacturerDataModel));
+			_dbContext.SaveChanges();
+		}
+		catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("Id", manufacturerDataModel.Id);
+		}
+		catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Manufacturers_ManufacturerName" })
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("ManufacturerName", manufacturerDataModel.ManufacturerName);
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void UpdElement(ManufacturerDataModel manufacturerDataModel)
+	{
+		try
+		{
+			var element = GetManufacturerById(manufacturerDataModel.Id) ?? throw new ElementNotFoundException(manufacturerDataModel.Id);
+			if (element.ManufacturerName != manufacturerDataModel.ManufacturerName)
+			{
+				element.PrevPrevManufacturerName = element.PrevManufacturerName;
+				element.PrevManufacturerName = element.ManufacturerName;
+				element.ManufacturerName = manufacturerDataModel.ManufacturerName;
+			}
+			_dbContext.Manufacturers.Update(element);
+			_dbContext.SaveChanges();
+		}
+		catch (ElementNotFoundException)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+		catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Manufacturers_ManufacturerName" })
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("ManufacturerName", manufacturerDataModel.ManufacturerName);
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void DelElement(string id)
+	{
+		try
+		{
+			var element = GetManufacturerById(id) ?? throw new ElementNotFoundException(id);
+			_dbContext.Manufacturers.Remove(element);
+			_dbContext.SaveChanges();
+		}
+		catch (ElementNotFoundException)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	private Manufacturer? GetManufacturerById(string id) => _dbContext.Manufacturers.FirstOrDefault(x => x.Id == id);
+}

TheCatHasPawsProject/CatHasPawsDatabase/Implementations/PostStorageContract.cs

@@ -0,0 +1,185 @@
+using AutoMapper;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using CatHasPawsDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+
+namespace CatHasPawsDatabase.Implementations;
+
+internal class PostStorageContract : IPostStorageContract
+{
+	private readonly CatHasPawsDbContext _dbContext;
+	private readonly Mapper _mapper;
+
+	public PostStorageContract(CatHasPawsDbContext dbContext)
+	{
+		_dbContext = dbContext;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<Post, PostDataModel>()
+				.ForMember(x => x.Id, x => x.MapFrom(src => src.PostId));
+			cfg.CreateMap<PostDataModel, Post>()
+				.ForMember(x => x.Id, x => x.Ignore())
+				.ForMember(x => x.PostId, x => x.MapFrom(src => src.Id))
+				.ForMember(x => x.IsActual, x => x.MapFrom(src => true))
+				.ForMember(x => x.ChangeDate, x => x.MapFrom(src => DateTime.UtcNow));
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public List<PostDataModel> GetList()
+	{
+		try
+		{
+			return [.. _dbContext.Posts.Select(x => _mapper.Map<PostDataModel>(x))];
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public List<PostDataModel> GetPostWithHistory(string postId)
+	{
+		try
+		{
+			return [.. _dbContext.Posts.Where(x => x.PostId == postId).Select(x => _mapper.Map<PostDataModel>(x))];
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public PostDataModel? GetElementById(string id)
+	{
+		try
+		{
+			return _mapper.Map<PostDataModel>(_dbContext.Posts.FirstOrDefault(x => x.PostId == id && x.IsActual));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public PostDataModel? GetElementByName(string name)
+	{
+		try
+		{
+			return _mapper.Map<PostDataModel>(_dbContext.Posts.FirstOrDefault(x => x.PostName == name && x.IsActual));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void AddElement(PostDataModel postDataModel)
+	{
+		try
+		{
+			_dbContext.Posts.Add(_mapper.Map<Post>(postDataModel));
+			_dbContext.SaveChanges();
+		}
+		catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Posts_PostName_IsActual" })
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("PostName", postDataModel.PostName);
+		}
+		catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Posts_PostId_IsActual" })
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("PostId", postDataModel.Id);
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void UpdElement(PostDataModel postDataModel)
+	{
+		try
+		{
+			var transaction = _dbContext.Database.BeginTransaction();
+			try
+			{
+				var element = GetPostById(postDataModel.Id) ?? throw new ElementNotFoundException(postDataModel.Id);
+				if (!element.IsActual)
+				{
+					throw new ElementDeletedException(postDataModel.Id);
+				}
+				element.IsActual = false;
+				_dbContext.SaveChanges();
+				var newElement = _mapper.Map<Post>(postDataModel);
+				_dbContext.Posts.Add(newElement);
+				_dbContext.SaveChanges();
+				transaction.Commit();
+			}
+			catch
+			{
+				transaction.Rollback();
+				throw;
+			}
+		}
+		catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Posts_PostName_IsActual" })
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("PostName", postDataModel.PostName);
+		}
+		catch (Exception ex) when (ex is ElementDeletedException || ex is ElementNotFoundException)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void DelElement(string id)
+	{
+		try
+		{
+			var element = GetPostById(id) ?? throw new ElementNotFoundException(id);
+			if (!element.IsActual)
+			{
+				throw new ElementDeletedException(id);
+			}
+			element.IsActual = false;
+			_dbContext.SaveChanges();
+		}
+		catch
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+	}
+
+	public void ResElement(string id)
+	{
+		try
+		{
+			var element = GetPostById(id) ?? throw new ElementNotFoundException(id);
+			element.IsActual = true;
+			_dbContext.SaveChanges();
+		}
+		catch
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+	}
+
+	private Post? GetPostById(string id) => _dbContext.Posts.Where(x => x.PostId == id).OrderByDescending(x => x.ChangeDate).FirstOrDefault();
+}

TheCatHasPawsProject/CatHasPawsDatabase/Implementations/ProductStorageContract.cs

@@ -0,0 +1,176 @@
+using AutoMapper;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using CatHasPawsDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+
+namespace CatHasPawsDatabase.Implementations;
+
+internal class ProductStorageContract : IProductStorageContract
+{
+	private readonly CatHasPawsDbContext _dbContext;
+	private readonly Mapper _mapper;
+
+	public ProductStorageContract(CatHasPawsDbContext dbContext)
+	{
+		_dbContext = dbContext;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<Manufacturer, ManufacturerDataModel>();
+			cfg.CreateMap<Product, ProductDataModel>();
+			cfg.CreateMap<ProductDataModel, Product>()
+				.ForMember(x => x.IsDeleted, x => x.MapFrom(src => false));
+			cfg.CreateMap<ProductHistory, ProductHistoryDataModel>();
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public List<ProductDataModel> GetList(bool onlyActive = true, string? manufacturerId = null)
+	{
+		try
+		{
+			var query = _dbContext.Products.Include(x => x.Manufacturer).AsQueryable();
+			if (onlyActive)
+			{
+				query = query.Where(x => !x.IsDeleted);
+			}
+			if (manufacturerId is not null)
+			{
+				query = query.Where(x => x.ManufacturerId == manufacturerId);
+			}
+			return [.. query.Select(x => _mapper.Map<ProductDataModel>(x))];
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public List<ProductHistoryDataModel> GetHistoryByProductId(string productId)
+	{
+		try
+		{
+			return [.. _dbContext.ProductHistories.Include(x => x.Product).Where(x => x.ProductId == productId).OrderByDescending(x => x.ChangeDate).Select(x => _mapper.Map<ProductHistoryDataModel>(x))];
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public ProductDataModel? GetElementById(string id)
+	{
+		try
+		{
+			return _mapper.Map<ProductDataModel>(GetProductById(id));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public ProductDataModel? GetElementByName(string name)
+	{
+		try
+		{
+			return _mapper.Map<ProductDataModel>(_dbContext.Products.Include(x => x.Manufacturer).FirstOrDefault(x => x.ProductName == name && !x.IsDeleted));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void AddElement(ProductDataModel productDataModel)
+	{
+		try
+		{
+			_dbContext.Products.Add(_mapper.Map<Product>(productDataModel));
+			_dbContext.SaveChanges();
+		}
+		catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("Id", productDataModel.Id);
+		}
+		catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Products_ProductName_IsDeleted" })
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("ProductName", productDataModel.ProductName);
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void UpdElement(ProductDataModel productDataModel)
+	{
+		try
+		{
+			var transaction = _dbContext.Database.BeginTransaction();
+			try
+			{
+				var element = GetProductById(productDataModel.Id) ?? throw new ElementNotFoundException(productDataModel.Id);
+				if (element.Price != productDataModel.Price)
+				{
+					_dbContext.ProductHistories.Add(new ProductHistory() { ProductId = element.Id, OldPrice = element.Price });
+					_dbContext.SaveChanges();
+				}
+				_dbContext.Products.Update(_mapper.Map(productDataModel, element));
+				_dbContext.SaveChanges();
+				transaction.Commit();
+			}
+			catch
+			{
+				transaction.Rollback();
+				throw;
+			}
+		}
+		catch (DbUpdateException ex) when (ex.InnerException is PostgresException { ConstraintName: "IX_Products_ProductName_IsDeleted" })
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("ProductName", productDataModel.ProductName);
+		}
+		catch (Exception ex) when (ex is ElementDeletedException || ex is ElementNotFoundException)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void DelElement(string id)
+	{
+		try
+		{
+			var element = GetProductById(id) ?? throw new ElementNotFoundException(id);
+			element.IsDeleted = true;
+			_dbContext.SaveChanges();
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	private Product? GetProductById(string id) => _dbContext.Products.Include(x => x.Manufacturer).FirstOrDefault(x => x.Id == id && !x.IsDeleted);
+}

TheCatHasPawsProject/CatHasPawsDatabase/Implementations/SalaryStorageContract.cs

@@ -0,0 +1,57 @@
+using AutoMapper;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using CatHasPawsDatabase.Models;
+
+namespace CatHasPawsDatabase.Implementations;
+
+internal class SalaryStorageContract : ISalaryStorageContract
+{
+	private readonly CatHasPawsDbContext _dbContext;
+	private readonly Mapper _mapper;
+
+	public SalaryStorageContract(CatHasPawsDbContext dbContext)
+	{
+		_dbContext = dbContext;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<Salary, SalaryDataModel>();
+			cfg.CreateMap<SalaryDataModel, Salary>()
+				.ForMember(dest => dest.WorkerSalary, opt => opt.MapFrom(src => src.Salary));
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public List<SalaryDataModel> GetList(DateTime startDate, DateTime endDate, string? workerId = null)
+	{
+		try
+		{
+			var query = _dbContext.Salaries.Where(x => x.SalaryDate >= startDate && x.SalaryDate <= endDate);
+			if (workerId is not null)
+			{
+				query = query.Where(x => x.WorkerId == workerId);
+			}
+			return [.. query.Select(x => _mapper.Map<SalaryDataModel>(x))];
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void AddElement(SalaryDataModel salaryDataModel)
+	{
+		try
+		{
+			_dbContext.Salaries.Add(_mapper.Map<Salary>(salaryDataModel));
+			_dbContext.SaveChanges();
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+}

TheCatHasPawsProject/CatHasPawsDatabase/Implementations/SaleStorageContract.cs

@@ -0,0 +1,116 @@
+using AutoMapper;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using CatHasPawsDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CatHasPawsDatabase.Implementations;
+
+internal class SaleStorageContract : ISaleStorageContract
+{
+	private readonly CatHasPawsDbContext _dbContext;
+	private readonly Mapper _mapper;
+
+	public SaleStorageContract(CatHasPawsDbContext dbContext)
+	{
+		_dbContext = dbContext;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<Manufacturer, ManufacturerDataModel>();
+			cfg.CreateMap<Buyer, BuyerDataModel>();
+			cfg.CreateMap<Product, ProductDataModel>();
+			cfg.CreateMap<Worker, WorkerDataModel>();
+			cfg.CreateMap<SaleProduct, SaleProductDataModel>();
+			cfg.CreateMap<SaleProductDataModel, SaleProduct>();
+			cfg.CreateMap<Sale, SaleDataModel>();
+			cfg.CreateMap<SaleDataModel, Sale>()
+				.ForMember(x => x.IsCancel, x => x.MapFrom(src => false))
+				.ForMember(x => x.SaleProducts, x => x.MapFrom(src => src.Products));
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public List<SaleDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? workerId = null, string? buyerId = null, string? productId = null)
+	{
+		try
+		{
+			var query = _dbContext.Sales.Include(x => x.Buyer).Include(x => x.Worker).Include(x => x.SaleProducts)!.ThenInclude(x => x.Product).AsQueryable();
+			if (startDate is not null && endDate is not null)
+			{
+				query = query.Where(x => x.SaleDate >= startDate && x.SaleDate < endDate);
+			}
+			if (workerId is not null)
+			{
+				query = query.Where(x => x.WorkerId == workerId);
+			}
+			if (buyerId is not null)
+			{
+				query = query.Where(x => x.BuyerId == buyerId);
+			}
+			if (productId is not null)
+			{
+				query = query.Where(x => x.SaleProducts!.Any(y => y.ProductId == productId));
+			}
+			return [.. query.Select(x => _mapper.Map<SaleDataModel>(x))];
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public SaleDataModel? GetElementById(string id)
+	{
+		try
+		{
+			return _mapper.Map<SaleDataModel>(GetSaleById(id));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void AddElement(SaleDataModel saleDataModel)
+	{
+		try
+		{
+			_dbContext.Sales.Add(_mapper.Map<Sale>(saleDataModel));
+			_dbContext.SaveChanges();
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void DelElement(string id)
+	{
+		try
+		{
+			var element = GetSaleById(id) ?? throw new ElementNotFoundException(id);
+			if (element.IsCancel)
+			{
+				throw new ElementDeletedException(id);
+			}
+			element.IsCancel = true;
+			_dbContext.SaveChanges();
+		}
+		catch (Exception ex) when (ex is ElementDeletedException || ex is ElementNotFoundException)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	private Sale? GetSaleById(string id) => _dbContext.Sales.Include(x => x.Buyer).Include(x => x.Worker).Include(x => x.SaleProducts)!.ThenInclude(x => x.Product).FirstOrDefault(x => x.Id == id);
+}

TheCatHasPawsProject/CatHasPawsDatabase/Implementations/WorkerStorageContract.cs

@@ -0,0 +1,150 @@
+using AutoMapper;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using CatHasPawsDatabase.Models;
+
+namespace CatHasPawsDatabase.Implementations;
+
+internal class WorkerStorageContract : IWorkerStorageContract
+{
+	private readonly CatHasPawsDbContext _dbContext;
+	private readonly Mapper _mapper;
+
+	public WorkerStorageContract(CatHasPawsDbContext dbContext)
+	{
+		_dbContext = dbContext;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<Post, PostDataModel>()
+				.ForMember(x => x.Id, x => x.MapFrom(src => src.PostId));
+			cfg.CreateMap<Worker, WorkerDataModel>();
+			cfg.CreateMap<WorkerDataModel, Worker>();
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public List<WorkerDataModel> GetList(bool onlyActive = true, string? postId = null, DateTime? fromBirthDate = null, DateTime? toBirthDate = null, DateTime? fromEmploymentDate = null, DateTime? toEmploymentDate = null)
+	{
+		try
+		{
+			var query = _dbContext.Workers.AsQueryable();
+			if (onlyActive)
+			{
+				query = query.Where(x => !x.IsDeleted);
+			}
+			if (postId is not null)
+			{
+				query = query.Where(x => x.PostId == postId);
+			}
+			if (fromBirthDate is not null && toBirthDate is not null)
+			{
+				query = query.Where(x => x.BirthDate >= fromBirthDate && x.BirthDate <= toBirthDate);
+			}
+			if (fromEmploymentDate is not null && toEmploymentDate is not null)
+			{
+				query = query.Where(x => x.EmploymentDate >= fromEmploymentDate && x.EmploymentDate <= toEmploymentDate);
+			}
+			return [.. JoinPost(query).Select(x => _mapper.Map<WorkerDataModel>(x))];
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public WorkerDataModel? GetElementById(string id)
+	{
+		try
+		{
+			return _mapper.Map<WorkerDataModel>(GetWorkerById(id));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public WorkerDataModel? GetElementByFIO(string fio)
+	{
+		try
+		{
+			return _mapper.Map<WorkerDataModel>(AddPost(_dbContext.Workers.FirstOrDefault(x => x.FIO == fio && !x.IsDeleted)));
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void AddElement(WorkerDataModel workerDataModel)
+	{
+		try
+		{
+			_dbContext.Workers.Add(_mapper.Map<Worker>(workerDataModel));
+			_dbContext.SaveChanges();
+		}
+		catch (InvalidOperationException ex) when (ex.TargetSite?.Name == "ThrowIdentityConflict")
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new ElementExistsException("Id", workerDataModel.Id);
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void UpdElement(WorkerDataModel workerDataModel)
+	{
+		try
+		{
+			var element = GetWorkerById(workerDataModel.Id) ?? throw new ElementNotFoundException(workerDataModel.Id);
+			_dbContext.Workers.Update(_mapper.Map(workerDataModel, element));
+			_dbContext.SaveChanges();
+		}
+		catch (ElementNotFoundException)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	public void DelElement(string id)
+	{
+		try
+		{
+			var element = GetWorkerById(id) ?? throw new ElementNotFoundException(id);
+			element.IsDeleted = true;
+			_dbContext.SaveChanges();
+		}
+		catch (ElementNotFoundException)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw;
+		}
+		catch (Exception ex)
+		{
+			_dbContext.ChangeTracker.Clear();
+			throw new StorageException(ex);
+		}
+	}
+
+	private Worker? GetWorkerById(string id) => AddPost(_dbContext.Workers.FirstOrDefault(x => x.Id == id && !x.IsDeleted));
+
+	private IQueryable<Worker> JoinPost(IQueryable<Worker> query)
+		=> query.GroupJoin(_dbContext.Posts.Where(x => x.IsActual), x => x.PostId, y => y.PostId, (x, y) => new { Worker = x, Post = y })
+				.SelectMany(xy => xy.Post.DefaultIfEmpty(), (x, y) => x.Worker.AddPost(y));
+
+	private Worker? AddPost(Worker? worker)
+		=> worker?.AddPost(_dbContext.Posts.FirstOrDefault(x => x.PostId == worker.PostId && x.IsActual));
+}

TheCatHasPawsProject/CatHasPawsDatabase/Models/Buyer.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace CatHasPawsDatabase.Models;
+
+internal class Buyer
+{
+	public required string Id { get; set; }
+
+	public required string FIO { get; set; }
+
+	public required string PhoneNumber { get; set; }
+
+	public double DiscountSize { get; set; }
+
+	[ForeignKey("BuyerId")]
+	public List<Sale>? Sales { get; set; }
+}

TheCatHasPawsProject/CatHasPawsDatabase/Models/Manufacturer.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace CatHasPawsDatabase.Models;
+
+internal class Manufacturer
+{
+	public required string Id { get; set; }
+
+	public required string ManufacturerName { get; set; }
+
+	public string? PrevManufacturerName { get; set; }
+
+	public string? PrevPrevManufacturerName { get; set; }
+
+	[ForeignKey("ManufacturerId")]
+	public List<Product>? Products { get; set; }
+}

TheCatHasPawsProject/CatHasPawsDatabase/Models/Post.cs

@@ -0,0 +1,20 @@
+using CatHasPawsContratcs.Enums;
+
+namespace CatHasPawsDatabase.Models;
+
+internal class Post
+{
+	public required string Id { get; set; } = Guid.NewGuid().ToString();
+
+	public required string PostId { get; set; }
+
+	public required string PostName { get; set; }
+
+	public PostType PostType { get; set; }
+
+	public double Salary { get; set; }
+
+	public bool IsActual { get; set; }
+
+	public DateTime ChangeDate { get; set; }
+}

TheCatHasPawsProject/CatHasPawsDatabase/Models/Product.cs

@@ -0,0 +1,27 @@
+using CatHasPawsContratcs.Enums;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace CatHasPawsDatabase.Models;
+
+internal class Product
+{
+	public required string Id { get; set; }
+
+	public required string ProductName { get; set; }
+
+	public ProductType ProductType { get; set; }
+
+	public required string ManufacturerId { get; set; }
+
+	public double Price { get; set; }
+
+	public bool IsDeleted { get; set; }
+
+	public Manufacturer? Manufacturer { get; set; }
+
+	[ForeignKey("ProductId")]
+	public List<ProductHistory>? ProductHistories { get; set; }
+
+	[ForeignKey("ProductId")]
+	public List<SaleProduct>? SaleProducts { get; set; }
+}

TheCatHasPawsProject/CatHasPawsDatabase/Models/ProductHistory.cs

@@ -0,0 +1,14 @@
+namespace CatHasPawsDatabase.Models;
+
+internal class ProductHistory
+{
+	public string Id { get; set; } = Guid.NewGuid().ToString();
+
+	public required string ProductId { get; set; }
+
+	public double OldPrice { get; set; }
+
+	public DateTime ChangeDate { get; set; }
+
+	public Product? Product { get; set; }
+}

TheCatHasPawsProject/CatHasPawsDatabase/Models/Salary.cs

@@ -0,0 +1,14 @@
+namespace CatHasPawsDatabase.Models;
+
+internal class Salary
+{
+	public string Id { get; set; } = Guid.NewGuid().ToString();
+
+	public required string WorkerId { get; set; }
+
+	public DateTime SalaryDate { get; set; }
+
+	public double WorkerSalary { get; set; }
+
+	public Worker? Worker { get; set; }
+}

TheCatHasPawsProject/CatHasPawsDatabase/Models/Sale.cs

@@ -0,0 +1,30 @@
+using CatHasPawsContratcs.Enums;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace CatHasPawsDatabase.Models;
+
+internal class Sale
+{
+	public string Id { get; set; } = Guid.NewGuid().ToString();
+
+	public required string WorkerId { get; set; }
+
+	public string? BuyerId { get; set; }
+
+	public DateTime SaleDate { get; set; }
+
+	public double Sum { get; set; }
+
+	public DiscountType DiscountType { get; set; }
+
+	public double Discount { get; set; }
+
+	public bool IsCancel { get; set; }
+
+	public Worker? Worker { get; set; }
+
+	public Buyer? Buyer { get; set; }
+
+	[ForeignKey("SaleId")]
+	public List<SaleProduct>? SaleProducts { get; set; }
+}

TheCatHasPawsProject/CatHasPawsDatabase/Models/SaleProduct.cs

@@ -0,0 +1,16 @@
+namespace CatHasPawsDatabase.Models;
+
+internal class SaleProduct
+{
+	public required string SaleId { get; set; }
+
+	public required string ProductId { get; set; }
+
+	public int Count { get; set; }
+
+	public double Price { get; set; }
+
+	public Sale? Sale { get; set; }
+
+	public Product? Product { get; set; }
+}

TheCatHasPawsProject/CatHasPawsDatabase/Models/Worker.cs

@@ -0,0 +1,33 @@
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace CatHasPawsDatabase.Models;
+
+internal class Worker
+{
+	public required string Id { get; set; }
+
+	public required string FIO { get; set; }
+
+	public required string PostId { get; set; }
+
+	public DateTime BirthDate { get; set; }
+
+	public DateTime EmploymentDate { get; set; }
+
+	public bool IsDeleted { get; set; }
+
+	[NotMapped]
+	public Post? Post { get; set; }
+
+	[ForeignKey("WorkerId")]
+	public List<Salary>? Salaries { get; set; }
+
+	[ForeignKey("WorkerId")]
+	public List<Sale>? Sales { get; set; }
+
+	public Worker AddPost(Post? post)
+	{
+		Post = post;
+		return this;
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/BusinessLogicsContractsTests/PostBusinessLogicContractTests.cs

@@ -33,61 +33,53 @@ internal class PostBusinessLogicContractTests
 		//Arrange
 		var listOriginal = new List<PostDataModel>()
 		{
-			new(Guid.NewGuid().ToString(),"name 1", PostType.Assistant, 10, true, DateTime.UtcNow),
-			new(Guid.NewGuid().ToString(), "name 2", PostType.Assistant, 10, false, DateTime.UtcNow),
-			new(Guid.NewGuid().ToString(), "name 3", PostType.Assistant, 10, true, DateTime.UtcNow),
+			new(Guid.NewGuid().ToString(),"name 1", PostType.Assistant, 10),
+			new(Guid.NewGuid().ToString(), "name 2", PostType.Assistant, 10),
+			new(Guid.NewGuid().ToString(), "name 3", PostType.Assistant, 10),
 		};
-		_postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns(listOriginal);
+		_postStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
 		//Act
-		var listOnlyActive = _postBusinessLogicContract.GetAllPosts(true);
-		var listAll = _postBusinessLogicContract.GetAllPosts(false);
+		var list = _postBusinessLogicContract.GetAllPosts();
 		//Assert
 		Assert.Multiple(() =>
 		{
-			Assert.That(listOnlyActive, Is.Not.Null);
-			Assert.That(listAll, Is.Not.Null);
-			Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
-			Assert.That(listAll, Is.EquivalentTo(listOriginal));
+			Assert.That(list, Is.Not.Null);
+			Assert.That(list, Is.EquivalentTo(listOriginal));
 		});
-		_postStorageContract.Verify(x => x.GetList(true), Times.Once);
-		_postStorageContract.Verify(x => x.GetList(false), Times.Once);
+		_postStorageContract.Verify(x => x.GetList(), Times.Once);
 	}
 
 	[Test]
 	public void GetAllPosts_ReturnEmptyList_Test()
 	{
 		//Arrange
-		_postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns([]);
+		_postStorageContract.Setup(x => x.GetList()).Returns([]);
 		//Act
-		var listOnlyActive = _postBusinessLogicContract.GetAllPosts(true);
-		var listAll = _postBusinessLogicContract.GetAllPosts(false);
+		var list = _postBusinessLogicContract.GetAllPosts();
 		//Assert
 		Assert.Multiple(() =>
 		{
-			Assert.That(listOnlyActive, Is.Not.Null);
-			Assert.That(listAll, Is.Not.Null);
-			Assert.That(listOnlyActive, Has.Count.EqualTo(0));
-			Assert.That(listAll, Has.Count.EqualTo(0));
+			Assert.That(list, Is.Not.Null);
+			Assert.That(list, Has.Count.EqualTo(0));
 		});
-		_postStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Exactly(2));
 	}
 
 	[Test]
 	public void GetAllPosts_ReturnNull_ThrowException_Test()
 	{
 		//Act&Assert
-		Assert.That(() => _postBusinessLogicContract.GetAllPosts(It.IsAny<bool>()), Throws.TypeOf<NullListException>());
-		_postStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Once);
+		Assert.That(() => _postBusinessLogicContract.GetAllPosts(), Throws.TypeOf<NullListException>());
+		_postStorageContract.Verify(x => x.GetList(), Times.Once);
 	}
 
 	[Test]
 	public void GetAllPosts_StorageThrowError_ThrowException_Test()
 	{
 		//Arrange
-		_postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Throws(new StorageException(new InvalidOperationException()));
+		_postStorageContract.Setup(x => x.GetList()).Throws(new StorageException(new InvalidOperationException()));
 		//Act&Assert
-		Assert.That(() => _postBusinessLogicContract.GetAllPosts(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
-		_postStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Once);
+		Assert.That(() => _postBusinessLogicContract.GetAllPosts(), Throws.TypeOf<StorageException>());
+		_postStorageContract.Verify(x => x.GetList(), Times.Once);
 	}
 
 	[Test]
@@ -97,8 +89,8 @@ internal class PostBusinessLogicContractTests
 		var postId = Guid.NewGuid().ToString();
 		var listOriginal = new List<PostDataModel>()
 		{
-			new(postId, "name 1", PostType.Assistant, 10, true, DateTime.UtcNow),
-			new(postId, "name 2", PostType.Assistant, 10, false, DateTime.UtcNow)
+			new(postId, "name 1", PostType.Assistant, 10),
+			new(postId, "name 2", PostType.Assistant, 10)
 		};
 		_postStorageContract.Setup(x => x.GetPostWithHistory(It.IsAny<string>())).Returns(listOriginal);
 		//Act
@@ -162,7 +154,7 @@ internal class PostBusinessLogicContractTests
 	{
 		//Arrange
 		var id = Guid.NewGuid().ToString();
-		var record = new PostDataModel(id, "name", PostType.Assistant, 10, true, DateTime.UtcNow);
+		var record = new PostDataModel(id, "name", PostType.Assistant, 10);
 		_postStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
 		//Act
 		var element = _postBusinessLogicContract.GetPostByData(id);
@@ -177,7 +169,7 @@ internal class PostBusinessLogicContractTests
 	{
 		//Arrange
 		var postName = "name";
-		var record = new PostDataModel(Guid.NewGuid().ToString(), postName, PostType.Assistant, 10, true, DateTime.UtcNow);
+		var record = new PostDataModel(Guid.NewGuid().ToString(), postName, PostType.Assistant, 10);
 		_postStorageContract.Setup(x => x.GetElementByName(postName)).Returns(record);
 		//Act
 		var element = _postBusinessLogicContract.GetPostByData(postName);
@@ -233,12 +225,11 @@ internal class PostBusinessLogicContractTests
 	{
 		//Arrange
 		var flag = false;
-		var record = new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10, true, DateTime.UtcNow.AddDays(-1));
+		var record = new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10);
 		_postStorageContract.Setup(x => x.AddElement(It.IsAny<PostDataModel>()))
 			.Callback((PostDataModel x) =>
 			{
-				flag = x.Id == record.Id && x.PostName == record.PostName && x.PostType == record.PostType && x.Salary == record.Salary &&
-					x.ChangeDate == record.ChangeDate;
+				flag = x.Id == record.Id && x.PostName == record.PostName && x.PostType == record.PostType && x.Salary == record.Salary;
 			});
 		//Act
 		_postBusinessLogicContract.InsertPost(record);
@@ -253,7 +244,7 @@ internal class PostBusinessLogicContractTests
 		//Arrange
 		_postStorageContract.Setup(x => x.AddElement(It.IsAny<PostDataModel>())).Throws(new ElementExistsException("Data", "Data"));
 		//Act&Assert
-		Assert.That(() => _postBusinessLogicContract.InsertPost(new(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10, true, DateTime.UtcNow)), Throws.TypeOf<ElementExistsException>());
+		Assert.That(() => _postBusinessLogicContract.InsertPost(new(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10)), Throws.TypeOf<ElementExistsException>());
 		_postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Once);
 	}
 
@@ -269,7 +260,7 @@ internal class PostBusinessLogicContractTests
 	public void InsertPost_InvalidRecord_ThrowException_Test()
 	{
 		//Act&Assert
-		Assert.That(() => _postBusinessLogicContract.InsertPost(new PostDataModel("id", "name", PostType.Supervisor, 10, true, DateTime.UtcNow)), Throws.TypeOf<ValidationException>());
+		Assert.That(() => _postBusinessLogicContract.InsertPost(new PostDataModel("id", "name", PostType.Supervisor, 10)), Throws.TypeOf<ValidationException>());
 		_postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Never);
 	}
 
@@ -279,7 +270,7 @@ internal class PostBusinessLogicContractTests
 		//Arrange
 		_postStorageContract.Setup(x => x.AddElement(It.IsAny<PostDataModel>())).Throws(new StorageException(new InvalidOperationException()));
 		//Act&Assert
-		Assert.That(() => _postBusinessLogicContract.InsertPost(new(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10, true, DateTime.UtcNow)), Throws.TypeOf<StorageException>());
+		Assert.That(() => _postBusinessLogicContract.InsertPost(new(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10)), Throws.TypeOf<StorageException>());
 		_postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Once);
 	}
 
@@ -288,12 +279,11 @@ internal class PostBusinessLogicContractTests
 	{
 		//Arrange
 		var flag = false;
-		var record = new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10, true, DateTime.UtcNow.AddDays(-1));
+		var record = new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10);
 		_postStorageContract.Setup(x => x.UpdElement(It.IsAny<PostDataModel>()))
 			.Callback((PostDataModel x) =>
 			{
-				flag = x.Id == record.Id && x.PostName == record.PostName && x.PostType == record.PostType && x.Salary == record.Salary &&
-					x.ChangeDate == record.ChangeDate;
+				flag = x.Id == record.Id && x.PostName == record.PostName && x.PostType == record.PostType && x.Salary == record.Salary;
 			});
 		//Act
 		_postBusinessLogicContract.UpdatePost(record);
@@ -308,7 +298,7 @@ internal class PostBusinessLogicContractTests
 		//Arrange
 		_postStorageContract.Setup(x => x.UpdElement(It.IsAny<PostDataModel>())).Throws(new ElementNotFoundException(""));
 		//Act&Assert
-		Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10, true, DateTime.UtcNow)), Throws.TypeOf<ElementNotFoundException>());
+		Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10)), Throws.TypeOf<ElementNotFoundException>());
 		_postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
 	}
 
@@ -318,7 +308,7 @@ internal class PostBusinessLogicContractTests
 		//Arrange
 		_postStorageContract.Setup(x => x.UpdElement(It.IsAny<PostDataModel>())).Throws(new ElementExistsException("Data", "Data"));
 		//Act&Assert
-		Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "anme", PostType.Supervisor, 10, true, DateTime.UtcNow)), Throws.TypeOf<ElementExistsException>());
+		Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "anme", PostType.Supervisor, 10)), Throws.TypeOf<ElementExistsException>());
 		_postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
 	}
 
@@ -334,7 +324,7 @@ internal class PostBusinessLogicContractTests
 	public void UpdatePost_InvalidRecord_ThrowException_Test()
 	{
 		//Act&Assert
-		Assert.That(() => _postBusinessLogicContract.UpdatePost(new PostDataModel("id", "name", PostType.Supervisor, 10, true, DateTime.UtcNow)), Throws.TypeOf<ValidationException>());
+		Assert.That(() => _postBusinessLogicContract.UpdatePost(new PostDataModel("id", "name", PostType.Supervisor, 10)), Throws.TypeOf<ValidationException>());
 		_postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Never);
 	}
 
@@ -344,7 +334,7 @@ internal class PostBusinessLogicContractTests
 		//Arrange
 		_postStorageContract.Setup(x => x.UpdElement(It.IsAny<PostDataModel>())).Throws(new StorageException(new InvalidOperationException()));
 		//Act&Assert
-		Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10, true, DateTime.UtcNow)), Throws.TypeOf<StorageException>());
+		Assert.That(() => _postBusinessLogicContract.UpdatePost(new(Guid.NewGuid().ToString(), "name", PostType.Supervisor, 10)), Throws.TypeOf<StorageException>());
 		_postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
 	}
 

TheCatHasPawsProject/CatHasPawsTests/BusinessLogicsContractsTests/SalaryBusinessLogicContractTests.cs

@@ -186,12 +186,12 @@ internal class SalaryBusinessLogicContractTests
 	{
 		//Arrange
 		var workerId = Guid.NewGuid().ToString();
-		var saleSum = 200.0;
+		var saleSum = 1.2 * 5;
 		var postSalary = 2000.0;
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), workerId, null, saleSum, DiscountType.None, 0, false, [])]);
+			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), workerId, null, DiscountType.None, false, [new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])]);
 		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, postSalary, true, DateTime.UtcNow));
+			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, postSalary));
 		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
 			.Returns([new WorkerDataModel(workerId, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
 		var sum = 0.0;
@@ -220,13 +220,13 @@ internal class SalaryBusinessLogicContractTests
 			new(worker3Id, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)
 		};
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), worker1Id, null, 1, DiscountType.None, 0, false, []),
-			new SaleDataModel(Guid.NewGuid().ToString(), worker1Id, null, 1, DiscountType.None, 0, false, []),
-			new SaleDataModel(Guid.NewGuid().ToString(), worker2Id, null, 1, DiscountType.None, 0, false, []),
-			new SaleDataModel(Guid.NewGuid().ToString(), worker3Id, null, 1, DiscountType.None, 0, false, []),
-			new SaleDataModel(Guid.NewGuid().ToString(), worker3Id, null, 1, DiscountType.None, 0, false, [])]);
+			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), worker1Id, null, DiscountType.None, false, []),
+			new SaleDataModel(Guid.NewGuid().ToString(), worker1Id, null, DiscountType.None, false, []),
+			new SaleDataModel(Guid.NewGuid().ToString(), worker2Id, null, DiscountType.None, false, []),
+			new SaleDataModel(Guid.NewGuid().ToString(), worker3Id, null, DiscountType.None, false, []),
+			new SaleDataModel(Guid.NewGuid().ToString(), worker3Id, null, DiscountType.None, false, [])]);
 		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000, true, DateTime.UtcNow));
+			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000));
 		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
 			.Returns(list);
 		//Act
@@ -236,7 +236,7 @@ internal class SalaryBusinessLogicContractTests
 	}
 
 	[Test]
-	public void CalculateSalaryByMounth_WithoitSalesByWorker_Test()
+	public void CalculateSalaryByMounth_WithoutSalesByWorker_Test()
 	{
 		//Arrange
 		var postSalary = 2000.0;
@@ -244,7 +244,7 @@ internal class SalaryBusinessLogicContractTests
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
 			.Returns([]);
 		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, postSalary, true, DateTime.UtcNow));
+			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, postSalary));
 		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
 			.Returns([new WorkerDataModel(workerId, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
 		var sum = 0.0;
@@ -266,7 +266,7 @@ internal class SalaryBusinessLogicContractTests
 		//Arrange
 		var workerId = Guid.NewGuid().ToString();
 		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000, true, DateTime.UtcNow));
+			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000));
 		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
 			.Returns([new WorkerDataModel(workerId, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
 		//Act&Assert
@@ -279,7 +279,7 @@ internal class SalaryBusinessLogicContractTests
 		//Arrange
 		var workerId = Guid.NewGuid().ToString();
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), workerId, null, 200, DiscountType.None, 0, false, [])]);
+			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), workerId, null, DiscountType.None, false, [])]);
 		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
 			.Returns([new WorkerDataModel(workerId, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
 		//Act&Assert
@@ -292,9 +292,9 @@ internal class SalaryBusinessLogicContractTests
 		//Arrange
 		var workerId = Guid.NewGuid().ToString();
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), workerId, null, 200, DiscountType.None, 0, false, [])]);
+			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), workerId, null, DiscountType.None, false, [])]);
 		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000, true, DateTime.UtcNow));
+			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000));
 		//Act&Assert
 		Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
 	}
@@ -307,7 +307,7 @@ internal class SalaryBusinessLogicContractTests
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
 			.Throws(new StorageException(new InvalidOperationException()));
 		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000, true, DateTime.UtcNow));
+			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000));
 		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
 			.Returns([new WorkerDataModel(workerId, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
 		//Act&Assert
@@ -320,7 +320,7 @@ internal class SalaryBusinessLogicContractTests
 		//Arrange
 		var workerId = Guid.NewGuid().ToString();
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), workerId, null, 200, DiscountType.None, 0, false, [])]);
+			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), workerId, null, DiscountType.None, false, [])]);
 		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
 			.Throws(new StorageException(new InvalidOperationException()));
 		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
@@ -335,9 +335,9 @@ internal class SalaryBusinessLogicContractTests
 		//Arrange
 		var workerId = Guid.NewGuid().ToString();
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()))
-			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), workerId, null, 200, DiscountType.None, 0, false, [])]);
+			.Returns([new SaleDataModel(Guid.NewGuid().ToString(), workerId, null, DiscountType.None, false, [])]);
 		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
-			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000, true, DateTime.UtcNow));
+			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000));
 		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
 			.Throws(new StorageException(new InvalidOperationException()));
 		//Act&Assert

TheCatHasPawsProject/CatHasPawsTests/BusinessLogicsContractsTests/SaleBusinessLogicContractTests.cs

@@ -34,10 +34,10 @@ internal class SaleBusinessLogicContractTests
 		var date = DateTime.UtcNow;
 		var listOriginal = new List<SaleDataModel>()
 		{
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false,
-				[new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+				[new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
 		};
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
 		//Act
@@ -98,10 +98,10 @@ internal class SaleBusinessLogicContractTests
 		var workerId = Guid.NewGuid().ToString();
 		var listOriginal = new List<SaleDataModel>()
 		{
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false,
-				[new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+				[new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
 		};
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
 		//Act
@@ -179,10 +179,10 @@ internal class SaleBusinessLogicContractTests
 		var buyerId = Guid.NewGuid().ToString();
 		var listOriginal = new List<SaleDataModel>()
 		{
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false,
-				[new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+				[new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
 		};
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
 		//Act
@@ -260,10 +260,10 @@ internal class SaleBusinessLogicContractTests
 		var productId = Guid.NewGuid().ToString();
 		var listOriginal = new List<SaleDataModel>()
 		{
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false,
-				[new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
-			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false, []),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false,
+				[new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, DiscountType.None, false, []),
 		};
 		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
 		//Act
@@ -338,8 +338,8 @@ internal class SaleBusinessLogicContractTests
 	{
 		//Arrange
 		var id = Guid.NewGuid().ToString();
-		var record = new SaleDataModel(id, Guid.NewGuid().ToString(), null, 10, DiscountType.None, 0, false,
-				[new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+		var record = new SaleDataModel(id, Guid.NewGuid().ToString(), null, DiscountType.None, false,
+				[new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]);
 		_saleStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
 		//Act
 		var element = _saleBusinessLogicContract.GetSaleByData(id);
@@ -389,17 +389,17 @@ internal class SaleBusinessLogicContractTests
 	{
 		//Arrange
 		var flag = false;
-		var record = new SaleDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.None, 10,
-			false, [new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+		var record = new SaleDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.None,
+			false, [new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)]);
 		_saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>()))
 			.Callback((SaleDataModel x) =>
 			{
 				flag = x.Id == record.Id && x.WorkerId == record.WorkerId && x.BuyerId == record.BuyerId &&
 					x.SaleDate == record.SaleDate && x.Sum == record.Sum && x.DiscountType == record.DiscountType &&
-					x.Discount == record.Discount && x.IsCancel == record.IsCancel && x.Products.Count == record.Products.Count &&
-					x.Products.First().ProductId == record.Products.First().ProductId &&
-					x.Products.First().SaleId == record.Products.First().SaleId &&
-					x.Products.First().Count == record.Products.First().Count;
+					x.Discount == record.Discount && x.IsCancel == record.IsCancel && x.Products?.Count == record.Products?.Count &&
+					x.Products?.First().ProductId == record.Products?.First().ProductId &&
+					x.Products?.First().SaleId == record.Products?.First().SaleId &&
+					x.Products?.First().Count == record.Products?.First().Count;
 			});
 		//Act
 		_saleBusinessLogicContract.InsertSale(record);
@@ -415,7 +415,7 @@ internal class SaleBusinessLogicContractTests
 		_saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>())).Throws(new ElementExistsException("Data", "Data"));
 		//Act&Assert
 		Assert.That(() => _saleBusinessLogicContract.InsertSale(new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
-			Guid.NewGuid().ToString(), 10, DiscountType.None, 10, false, [new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
+			Guid.NewGuid().ToString(), DiscountType.None, false, [new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])), Throws.TypeOf<ElementExistsException>());
 		_saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
 	}
 
@@ -431,7 +431,7 @@ internal class SaleBusinessLogicContractTests
 	public void InsertSale_InvalidRecord_ThrowException_Test()
 	{
 		//Act&Assert
-		Assert.That(() => _saleBusinessLogicContract.InsertSale(new SaleDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.None, 10, false, [])), Throws.TypeOf<ValidationException>());
+		Assert.That(() => _saleBusinessLogicContract.InsertSale(new SaleDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.None, false, [])), Throws.TypeOf<ValidationException>());
 		_saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Never);
 	}
 
@@ -442,7 +442,7 @@ internal class SaleBusinessLogicContractTests
 		_saleStorageContract.Setup(x => x.AddElement(It.IsAny<SaleDataModel>())).Throws(new StorageException(new InvalidOperationException()));
 		//Act&Assert
 		Assert.That(() => _saleBusinessLogicContract.InsertSale(new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
-			Guid.NewGuid().ToString(), 10, DiscountType.None, 10, false, [new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+			Guid.NewGuid().ToString(), DiscountType.None, false, [new SaleProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5, 1.2)])), Throws.TypeOf<StorageException>());
 		_saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
 	}
 

TheCatHasPawsProject/CatHasPawsTests/CatHasPawsTests.csproj

@@ -8,8 +8,17 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Content Include="appsettings.json">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
+      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
+    </Content>
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="6.0.2" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="NUnit" Version="4.2.2" />
@@ -20,6 +29,8 @@
   <ItemGroup>
     <ProjectReference Include="..\CatHasPawsBusinessLogic\CatHasPawsBusinessLogic.csproj" />
     <ProjectReference Include="..\CatHasPawsContratcs\CatHasPawsContratcs.csproj" />
+    <ProjectReference Include="..\CatHasPawsDatabase\CatHasPawsDatabase.csproj" />
+    <ProjectReference Include="..\CatHasPawsWebApi\CatHasPawsWebApi.csproj" />
   </ItemGroup>
 
   <ItemGroup>

TheCatHasPawsProject/CatHasPawsTests/DataModelsTests/PostDataModelTests.cs

@@ -10,41 +10,41 @@ internal class PostDataModelTests
 	[Test]
 	public void IdIsNullOrEmptyTest()
 	{
-		var post = CreateDataModel(null, "name", PostType.Assistant, 10, true, DateTime.UtcNow);
+		var post = CreateDataModel(null, "name", PostType.Assistant, 10);
 		Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-		post = CreateDataModel(string.Empty, "name", PostType.Assistant, 10, true, DateTime.UtcNow);
+		post = CreateDataModel(string.Empty, "name", PostType.Assistant, 10);
 		Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void IdIsNotGuidTest()
 	{
-		var post = CreateDataModel("id", "name", PostType.Assistant, 10, true, DateTime.UtcNow);
+		var post = CreateDataModel("id", "name", PostType.Assistant, 10);
 		Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void PostNameIsEmptyTest()
 	{
-		var manufacturer = CreateDataModel(Guid.NewGuid().ToString(), null, PostType.Assistant, 10, true, DateTime.UtcNow);
+		var manufacturer = CreateDataModel(Guid.NewGuid().ToString(), null, PostType.Assistant, 10);
 		Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
-		manufacturer = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, PostType.Assistant, 10, true, DateTime.UtcNow);
+		manufacturer = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, PostType.Assistant, 10);
 		Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void PostTypeIsNoneTest()
 	{
-		var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.None, 10, true, DateTime.UtcNow);
+		var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.None, 10);
 		Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void SalaryIsLessOrZeroTest()
 	{
-		var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 0, true, DateTime.UtcNow);
+		var post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 0);
 		Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-		post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, -10, true, DateTime.UtcNow);
+		post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, -10);
 		Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
@@ -55,9 +55,7 @@ internal class PostDataModelTests
 		var postName = "name";
 		var postType = PostType.Assistant;
 		var salary = 10;
-		var isActual = false;
-		var changeDate = DateTime.UtcNow.AddDays(-1);
-		var post = CreateDataModel(postId, postName, postType, salary, isActual, changeDate);
+		var post = CreateDataModel(postId, postName, postType, salary);
 		Assert.That(() => post.Validate(), Throws.Nothing);
 		Assert.Multiple(() =>
 		{
@@ -65,11 +63,9 @@ internal class PostDataModelTests
 			Assert.That(post.PostName, Is.EqualTo(postName));
 			Assert.That(post.PostType, Is.EqualTo(postType));
 			Assert.That(post.Salary, Is.EqualTo(salary));
-			Assert.That(post.IsActual, Is.EqualTo(isActual));
-			Assert.That(post.ChangeDate, Is.EqualTo(changeDate));
 		});
 	}
 
-	private static PostDataModel CreateDataModel(string? id, string? postName, PostType postType, double salary, bool isActual, DateTime changeDate) =>
-		new(id, postName, postType, salary, isActual, changeDate);
+	private static PostDataModel CreateDataModel(string? id, string? postName, PostType postType, double salary) =>
+		new(id, postName, postType, salary);
 }

TheCatHasPawsProject/CatHasPawsTests/DataModelsTests/SaleDataModelTests.cs

@@ -10,88 +10,120 @@ internal class SaleDataModelTests
 	[Test]
 	public void IdIsNullOrEmptyTest()
 	{
-		var sale = CreateDataModel(null, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+		var sale = CreateDataModel(null, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
 		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-		sale = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+		sale = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
 		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void IdIsNotGuidTest()
 	{
-		var sale = CreateDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+		var sale = CreateDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
 		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
 	}
 	[Test]
 	public void WorkerIdIsNullOrEmptyTest()
 	{
-		var sale = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+		var sale = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
 		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-		sale = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+		sale = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
 		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void WorkerIdIsNotGuidTest()
 	{
-		var sale = CreateDataModel(Guid.NewGuid().ToString(), "workerId", Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+		var sale = CreateDataModel(Guid.NewGuid().ToString(), "workerId", Guid.NewGuid().ToString(), DiscountType.OnSale, false, CreateSubDataModel());
 		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void BuyerIdIsNotGuidTest()
 	{
-		var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "buyerId", 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
-		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-	}
-
-	[Test]
-	public void SumIsLessOrZeroTest()
-	{
-		var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, DiscountType.OnSale, 10, false, CreateSubDataModel());
-		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-		sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+		var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "buyerId", DiscountType.OnSale, false, CreateSubDataModel());
 		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void ProductsIsNullOrEmptyTest()
 	{
-		var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, null);
+		var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, null);
 		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
-		sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, []);
+		sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DiscountType.OnSale, false, []);
 		Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
+	[Test]
+	public void CalcSumAndDiscountTest()
+	{
+		var saleId = Guid.NewGuid().ToString();
+		var workerId = Guid.NewGuid().ToString();
+		var buyerId = Guid.NewGuid().ToString();
+		var products = new List<SaleProductDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 2, 1.1),
+			new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, 1.3)
+		};
+		var isCancel = false;
+		var totalSum = products.Sum(x => x.Price * x.Count);
+		var saleNone = CreateDataModel(saleId, workerId, buyerId, DiscountType.None, isCancel, products);
+		Assert.Multiple(() =>
+		{
+			Assert.That(saleNone.Sum, Is.EqualTo(totalSum));
+			Assert.That(saleNone.Discount, Is.EqualTo(0));
+		});
+		var saleOnSale = CreateDataModel(saleId, workerId, buyerId, DiscountType.OnSale, isCancel, products);
+		Assert.Multiple(() =>
+		{
+			Assert.That(saleOnSale.Sum, Is.EqualTo(totalSum));
+			Assert.That(saleOnSale.Discount, Is.EqualTo(totalSum * 0.1));
+		});
+		var saleRegularCustomer = CreateDataModel(saleId, workerId, buyerId, DiscountType.RegularCustomer, isCancel, products);
+		Assert.Multiple(() =>
+		{
+			Assert.That(saleRegularCustomer.Sum, Is.EqualTo(totalSum));
+			Assert.That(saleRegularCustomer.Discount, Is.EqualTo(totalSum * 0.5));
+		});
+		var saleCertificate = CreateDataModel(saleId, workerId, buyerId, DiscountType.Certificate, isCancel, products);
+		Assert.Multiple(() =>
+		{
+			Assert.That(saleCertificate.Sum, Is.EqualTo(totalSum));
+			Assert.That(saleCertificate.Discount, Is.EqualTo(totalSum * 0.3));
+		});
+		var saleMulty = CreateDataModel(saleId, workerId, buyerId, DiscountType.Certificate | DiscountType.RegularCustomer, isCancel, products);
+		Assert.Multiple(() =>
+		{
+			Assert.That(saleMulty.Sum, Is.EqualTo(totalSum));
+			Assert.That(saleMulty.Discount, Is.EqualTo(totalSum * 0.8));
+		});
+	}
+
 	[Test]
 	public void AllFieldsIsCorrectTest()
 	{
 		var saleId = Guid.NewGuid().ToString();
 		var workerId = Guid.NewGuid().ToString();
 		var buyerId = Guid.NewGuid().ToString();
-		var sum = 10;
 		var discountType = DiscountType.Certificate;
-		var discount = 1;
 		var isCancel = true;
 		var products = CreateSubDataModel();
-		var sale = CreateDataModel(saleId, workerId, buyerId, sum, discountType, discount, isCancel, products);
+		var sale = CreateDataModel(saleId, workerId, buyerId, discountType, isCancel, products);
 		Assert.That(() => sale.Validate(), Throws.Nothing);
 		Assert.Multiple(() =>
 		{
 			Assert.That(sale.Id, Is.EqualTo(saleId));
 			Assert.That(sale.WorkerId, Is.EqualTo(workerId));
 			Assert.That(sale.BuyerId, Is.EqualTo(buyerId));
-			Assert.That(sale.Sum, Is.EqualTo(sum));
 			Assert.That(sale.DiscountType, Is.EqualTo(discountType));
-			Assert.That(sale.Discount, Is.EqualTo(discount));
 			Assert.That(sale.IsCancel, Is.EqualTo(isCancel));
 			Assert.That(sale.Products, Is.EquivalentTo(products));
 		});
 	}
 
-	private static SaleDataModel CreateDataModel(string? id, string? workerId, string? buyerId, double sum, DiscountType discountType, double discount, bool isCancel, List<SaleProductDataModel>? products) =>
-		new(id, workerId, buyerId, sum, discountType, discount, isCancel, products);
+	private static SaleDataModel CreateDataModel(string? id, string? workerId, string? buyerId, DiscountType discountType, bool isCancel, List<SaleProductDataModel>? products) =>
+		new(id, workerId, buyerId, discountType, isCancel, products);
 
 	private static List<SaleProductDataModel> CreateSubDataModel()
-		=> [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];
+		=> [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, 1.1)];
 }

TheCatHasPawsProject/CatHasPawsTests/DataModelsTests/SaleProductDataModelTests.cs

@@ -9,41 +9,50 @@ internal class SaleProductDataModelTests
 	[Test]
 	public void SaleIdIsNullOrEmptyTest()
 	{
-		var saleProduct = CreateDataModel(null, Guid.NewGuid().ToString(), 10);
+		var saleProduct = CreateDataModel(null, Guid.NewGuid().ToString(), 10, 1.1);
 		Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
-		saleProduct = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+		saleProduct = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10, 1.1);
 		Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void SaleIdIsNotGuidTest()
 	{
-		var saleProduct = CreateDataModel("saleId", Guid.NewGuid().ToString(), 10);
+		var saleProduct = CreateDataModel("saleId", Guid.NewGuid().ToString(), 10, 1.1);
 		Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void ProductIdIsNullOrEmptyTest()
 	{
-		var saleProduct = CreateDataModel(Guid.NewGuid().ToString(), null, 10);
+		var saleProduct = CreateDataModel(Guid.NewGuid().ToString(), null, 10, 1.1);
 		Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
-		saleProduct = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+		saleProduct = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10, 1.1);
 		Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void ProductIdIsNotGuidTest()
 	{
-		var saleProduct = CreateDataModel(Guid.NewGuid().ToString(), "productId", 10);
+		var saleProduct = CreateDataModel(Guid.NewGuid().ToString(), "productId", 10, 1.1);
 		Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
 	[Test]
 	public void CountIsLessOrZeroTest()
 	{
-		var saleProduct = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
+		var saleProduct = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, 1.1);
 		Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
-		saleProduct = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10);
+		saleProduct = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10, 1.1);
+		Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
+	}
+
+	[Test]
+	public void PriceIsLessOrZeroTest()
+	{
+		var saleProduct = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, 0);
+		Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
+		saleProduct = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1, -10);
 		Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
 	}
 
@@ -53,16 +62,18 @@ internal class SaleProductDataModelTests
 		var saleId = Guid.NewGuid().ToString();
 		var productId = Guid.NewGuid().ToString();
 		var count = 10;
-		var saleProduct = CreateDataModel(saleId, productId, count);
+		var price = 1.2;
+		var saleProduct = CreateDataModel(saleId, productId, count, price);
 		Assert.That(() => saleProduct.Validate(), Throws.Nothing);
 		Assert.Multiple(() =>
 		{
 			Assert.That(saleProduct.SaleId, Is.EqualTo(saleId));
 			Assert.That(saleProduct.ProductId, Is.EqualTo(productId));
 			Assert.That(saleProduct.Count, Is.EqualTo(count));
+			Assert.That(saleProduct.Price, Is.EqualTo(price));
 		});
 	}
 
-	private static SaleProductDataModel CreateDataModel(string? saleId, string? productId, int count) =>
-		new(saleId, productId, count);
+	private static SaleProductDataModel CreateDataModel(string? saleId, string? productId, int count, double price) =>
+		new(saleId, productId, count, price);
 }

TheCatHasPawsProject/CatHasPawsTests/Infrastructure/CatHasPawsDbContextExtensions.cs

@@ -0,0 +1,114 @@
+using CatHasPawsContratcs.Enums;
+using CatHasPawsDatabase;
+using CatHasPawsDatabase.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CatHasPawsTests.Infrastructure;
+
+internal static class CatHasPawsDbContextExtensions
+{
+	public static Buyer InsertBuyerToDatabaseAndReturn(this CatHasPawsDbContext dbContext, string? id = null, string fio = "test", string phoneNumber = "+7-777-777-77-77", double discountSize = 10)
+	{
+		var buyer = new Buyer() { Id = id ?? Guid.NewGuid().ToString(), FIO = fio, PhoneNumber = phoneNumber, DiscountSize = discountSize };
+		dbContext.Buyers.Add(buyer);
+		dbContext.SaveChanges();
+		return buyer;
+	}
+
+	public static Manufacturer InsertManufacturerToDatabaseAndReturn(this CatHasPawsDbContext dbContext, string? id = null, string manufacturerName = "test", string prevManufacturerName = "prev", string prevPrevManufacturerName = "prevPrev")
+	{
+		var manufacturer = new Manufacturer() { Id = id ?? Guid.NewGuid().ToString(), ManufacturerName = manufacturerName, PrevManufacturerName = prevManufacturerName, PrevPrevManufacturerName = prevPrevManufacturerName };
+		dbContext.Manufacturers.Add(manufacturer);
+		dbContext.SaveChanges();
+		return manufacturer;
+	}
+
+	public static Post InsertPostToDatabaseAndReturn(this CatHasPawsDbContext dbContext, string? id = null, string postName = "test", PostType postType = PostType.Assistant, double salary = 10, bool isActual = true, DateTime? changeDate = null)
+	{
+		var post = new Post() { Id = Guid.NewGuid().ToString(), PostId = id ?? Guid.NewGuid().ToString(), PostName = postName, PostType = postType, Salary = salary, IsActual = isActual, ChangeDate = changeDate ?? DateTime.UtcNow };
+		dbContext.Posts.Add(post);
+		dbContext.SaveChanges();
+		return post;
+	}
+
+	public static Product InsertProductToDatabaseAndReturn(this CatHasPawsDbContext dbContext, string manufacturerId, string? id = null, string productName = "test", ProductType productType = ProductType.Feed, double price = 1, bool isDeleted = false)
+	{
+		var product = new Product() { Id = id ?? Guid.NewGuid().ToString(), ManufacturerId = manufacturerId, ProductName = productName, ProductType = productType, Price = price, IsDeleted = isDeleted };
+		dbContext.Products.Add(product);
+		dbContext.SaveChanges();
+		return product;
+	}
+
+	public static ProductHistory InsertProductHistoryToDatabaseAndReturn(this CatHasPawsDbContext dbContext, string productId, double price = 10, DateTime? changeDate = null)
+	{
+		var productHistory = new ProductHistory() { Id = Guid.NewGuid().ToString(), ProductId = productId, OldPrice = price, ChangeDate = changeDate ?? DateTime.UtcNow };
+		dbContext.ProductHistories.Add(productHistory);
+		dbContext.SaveChanges();
+		return productHistory;
+	}
+
+	public static Salary InsertSalaryToDatabaseAndReturn(this CatHasPawsDbContext dbContext, string workerId, double workerSalary = 1, DateTime? salaryDate = null)
+	{
+		var salary = new Salary() { WorkerId = workerId, WorkerSalary = workerSalary, SalaryDate = salaryDate ?? DateTime.UtcNow };
+		dbContext.Salaries.Add(salary);
+		dbContext.SaveChanges();
+		return salary;
+	}
+
+	public static Sale InsertSaleToDatabaseAndReturn(this CatHasPawsDbContext dbContext, string workerId, string? buyerId = null, DateTime? saleDate = null, double sum = 1, DiscountType discountType = DiscountType.OnSale, double discount = 0, bool isCancel = false, List<(string, int, double)>? products = null)
+	{
+		var sale = new Sale() { WorkerId = workerId, BuyerId = buyerId, SaleDate = saleDate ?? DateTime.UtcNow, Sum = sum, DiscountType = discountType, Discount = discount, IsCancel = isCancel, SaleProducts = [] };
+		if (products is not null)
+		{
+			foreach (var elem in products)
+			{
+				sale.SaleProducts.Add(new SaleProduct { ProductId = elem.Item1, SaleId = sale.Id, Count = elem.Item2, Price = elem.Item3 });
+			}
+		}
+		dbContext.Sales.Add(sale);
+		dbContext.SaveChanges();
+		return sale;
+	}
+
+	public static Worker InsertWorkerToDatabaseAndReturn(this CatHasPawsDbContext dbContext, string? id = null, string fio = "test", string? postId = null, DateTime? birthDate = null, DateTime? employmentDate = null, bool isDeleted = false)
+	{
+		var worker = new Worker() { Id = id ?? Guid.NewGuid().ToString(), FIO = fio, PostId = postId ?? Guid.NewGuid().ToString(), BirthDate = birthDate ?? DateTime.UtcNow.AddYears(-20), EmploymentDate = employmentDate ?? DateTime.UtcNow, IsDeleted = isDeleted };
+		dbContext.Workers.Add(worker);
+		dbContext.SaveChanges();
+		return worker;
+	}
+
+	public static Buyer? GetBuyerFromDatabase(this CatHasPawsDbContext dbContext, string id) => dbContext.Buyers.FirstOrDefault(x => x.Id == id);
+
+	public static Manufacturer? GetManufacturerFromDatabase(this CatHasPawsDbContext dbContext, string id) => dbContext.Manufacturers.FirstOrDefault(x => x.Id == id);
+
+	public static Post? GetPostFromDatabaseByPostId(this CatHasPawsDbContext dbContext, string id) => dbContext.Posts.FirstOrDefault(x => x.PostId == id && x.IsActual);
+
+	public static Post[] GetPostsFromDatabaseByPostId(this CatHasPawsDbContext dbContext, string id) => [.. dbContext.Posts.Where(x => x.PostId == id).OrderByDescending(x => x.ChangeDate)];
+
+	public static Product? GetProductFromDatabaseById(this CatHasPawsDbContext dbContext, string id) => dbContext.Products.FirstOrDefault(x => x.Id == id);
+
+	public static Salary[] GetSalariesFromDatabaseByWorkerId(this CatHasPawsDbContext dbContext, string id) => [.. dbContext.Salaries.Where(x => x.WorkerId == id)];
+
+	public static Sale? GetSaleFromDatabaseById(this CatHasPawsDbContext dbContext, string id) => dbContext.Sales.Include(x => x.SaleProducts).FirstOrDefault(x => x.Id == id);
+
+	public static Sale[] GetSalesByBuyerId(this CatHasPawsDbContext dbContext, string? buyerId) => [.. dbContext.Sales.Include(x => x.SaleProducts).Where(x => x.BuyerId == buyerId)];
+
+	public static Worker? GetWorkerFromDatabaseById(this CatHasPawsDbContext dbContext, string id) => dbContext.Workers.FirstOrDefault(x => x.Id == id);
+
+	public static void RemoveBuyersFromDatabase(this CatHasPawsDbContext dbContext) => dbContext.ExecuteSqlRaw("TRUNCATE \"Buyers\" CASCADE;");
+
+	public static void RemoveManufacturersFromDatabase(this CatHasPawsDbContext dbContext) => dbContext.ExecuteSqlRaw("TRUNCATE \"Manufacturers\" CASCADE;");
+
+	public static void RemovePostsFromDatabase(this CatHasPawsDbContext dbContext) => dbContext.ExecuteSqlRaw("TRUNCATE \"Posts\" CASCADE;");
+
+	public static void RemoveProductsFromDatabase(this CatHasPawsDbContext dbContext) => dbContext.ExecuteSqlRaw("TRUNCATE \"Products\" CASCADE;");
+
+	public static void RemoveSalariesFromDatabase(this CatHasPawsDbContext dbContext) => dbContext.ExecuteSqlRaw("TRUNCATE \"Salaries\" CASCADE;");
+
+	public static void RemoveSalesFromDatabase(this CatHasPawsDbContext dbContext) => dbContext.ExecuteSqlRaw("TRUNCATE \"Sales\" CASCADE;");
+
+	public static void RemoveWorkersFromDatabase(this CatHasPawsDbContext dbContext) => dbContext.ExecuteSqlRaw("TRUNCATE \"Workers\" CASCADE;");
+
+	private static void ExecuteSqlRaw(this CatHasPawsDbContext dbContext, string command) => dbContext.Database.ExecuteSqlRaw(command);
+}

TheCatHasPawsProject/CatHasPawsTests/Infrastructure/ConfigurationDatabaseTest.cs

@@ -0,0 +1,9 @@
+using CatHasPawsContratcs.Infrastructure;
+
+namespace CatHasPawsTests.Infrastructure;
+
+internal class ConfigurationDatabaseTest : IConfigurationDatabase
+{
+	public string ConnectionString =>
+		"Host=127.0.0.1;Port=5432;Database=CatHasPawsTest;Username=postgres;Password=postgres;";
+}

TheCatHasPawsProject/CatHasPawsTests/Infrastructure/CustomWebApplicationFactory.cs

@@ -0,0 +1,31 @@
+using CatHasPawsContratcs.Infrastructure;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Mvc.Testing;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace CatHasPawsTests.Infrastructure;
+
+internal class CustomWebApplicationFactory<TProgram> : WebApplicationFactory<TProgram>
+	where TProgram : class
+{
+	protected override void ConfigureWebHost(IWebHostBuilder builder)
+	{
+		builder.ConfigureServices(services =>
+		{
+			var databaseConfig = services.SingleOrDefault(x => x.ServiceType == typeof(IConfigurationDatabase));
+			if (databaseConfig is not null)
+				services.Remove(databaseConfig);
+
+			var loggerFactory = services.SingleOrDefault(x => x.ServiceType == typeof(LoggerFactory));
+			if (loggerFactory is not null)
+				services.Remove(loggerFactory);
+
+			services.AddSingleton<IConfigurationDatabase, ConfigurationDatabaseTest>();
+		});
+
+		builder.UseEnvironment("Development");
+
+		base.ConfigureWebHost(builder);
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/StoragesContracts/BaseStorageContractTest.cs

@@ -0,0 +1,25 @@
+using CatHasPawsDatabase;
+using CatHasPawsTests.Infrastructure;
+
+namespace CatHasPawsTests.StoragesContracts;
+
+internal abstract class BaseStorageContractTest
+{
+	protected CatHasPawsDbContext CatHasPawsDbContext { get; private set; }
+
+	[OneTimeSetUp]
+	public void OneTimeSetUp()
+	{
+		CatHasPawsDbContext = new CatHasPawsDbContext(new ConfigurationDatabaseTest());
+
+		CatHasPawsDbContext.Database.EnsureDeleted();
+		CatHasPawsDbContext.Database.EnsureCreated();
+	}
+
+	[OneTimeTearDown]
+	public void OneTimeTearDown()
+	{
+		CatHasPawsDbContext.Database.EnsureDeleted();
+		CatHasPawsDbContext.Dispose();
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/StoragesContracts/BuyerStorageContractTests.cs

@@ -0,0 +1,199 @@
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsDatabase.Implementations;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+
+namespace CatHasPawsTests.StoragesContracts;
+
+[TestFixture]
+internal class BuyerStorageContractTests : BaseStorageContractTest
+{
+	private BuyerStorageContract _buyerStorageContract;
+
+	[SetUp]
+	public void SetUp()
+	{
+		_buyerStorageContract = new BuyerStorageContract(CatHasPawsDbContext);
+	}
+
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemoveSalesFromDatabase();
+		CatHasPawsDbContext.RemoveWorkersFromDatabase();
+		CatHasPawsDbContext.RemoveBuyersFromDatabase();
+	}
+
+	[Test]
+	public void Try_GetList_WhenHaveRecords_Test()
+	{
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(phoneNumber: "+5-555-555-55-55");
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(phoneNumber: "+6-666-666-66-66");
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(phoneNumber: "+7-777-777-77-77");
+		var list = _buyerStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(3));
+		AssertElement(list.First(x => x.Id == buyer.Id), buyer);
+	}
+
+	[Test]
+	public void Try_GetList_WhenNoRecords_Test()
+	{
+		var list = _buyerStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.Empty);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenHaveRecord_Test()
+	{
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		AssertElement(_buyerStorageContract.GetElementById(buyer.Id), buyer);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		Assert.That(() => _buyerStorageContract.GetElementById(Guid.NewGuid().ToString()), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementByFIO_WhenHaveRecord_Test()
+	{
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		AssertElement(_buyerStorageContract.GetElementByFIO(buyer.FIO), buyer);
+	}
+
+	[Test]
+	public void Try_GetElementByFIO_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		Assert.That(() => _buyerStorageContract.GetElementByFIO("New Fio"), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementByPhoneNumber_WhenHaveRecord_Test()
+	{
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		AssertElement(_buyerStorageContract.GetElementByPhoneNumber(buyer.PhoneNumber), buyer);
+	}
+
+	[Test]
+	public void Try_GetElementByPhoneNumber_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		Assert.That(() => _buyerStorageContract.GetElementByPhoneNumber("+8-888-888-88-88"), Is.Null);
+	}
+
+	[Test]
+	public void Try_AddElement_Test()
+	{
+		var buyer = CreateModel(Guid.NewGuid().ToString());
+		_buyerStorageContract.AddElement(buyer);
+		AssertElement(CatHasPawsDbContext.GetBuyerFromDatabase(buyer.Id), buyer);
+	}
+
+	[Test]
+	public void Try_AddElement_WhenHaveRecordWithSameId_Test()
+	{
+		var buyer = CreateModel(Guid.NewGuid().ToString(), "New Fio", "+5-555-555-55-55", 500);
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(buyer.Id);
+		Assert.That(() => _buyerStorageContract.AddElement(buyer), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_AddElement_WhenHaveRecordWithSamePhoneNumber_Test()
+	{
+		var buyer = CreateModel(Guid.NewGuid().ToString(), "New Fio", "+5-555-555-55-55", 500);
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(phoneNumber: buyer.PhoneNumber);
+		Assert.That(() => _buyerStorageContract.AddElement(buyer), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_Test()
+	{
+		var buyer = CreateModel(Guid.NewGuid().ToString(), "New Fio", "+5-555-555-55-55", 500);
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(buyer.Id);
+		_buyerStorageContract.UpdElement(buyer);
+		AssertElement(CatHasPawsDbContext.GetBuyerFromDatabase(buyer.Id), buyer);
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _buyerStorageContract.UpdElement(CreateModel(Guid.NewGuid().ToString())), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenHaveRecordWithSamePhoneNumber_Test()
+	{
+		var buyer = CreateModel(Guid.NewGuid().ToString(), "New Fio", "+5-555-555-55-55", 500);
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(buyer.Id, phoneNumber: "+7-777-777-77-77");
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(phoneNumber: buyer.PhoneNumber);
+		Assert.That(() => _buyerStorageContract.UpdElement(buyer), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_DelElement_Test()
+	{
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		_buyerStorageContract.DelElement(buyer.Id);
+		Assert.That(CatHasPawsDbContext.GetBuyerFromDatabase(buyer.Id), Is.Null);
+	}
+
+	[Test]
+	public void Try_DelElement_WhenHaveSalesByThisBuyer_Test()
+	{
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(worker.Id, buyer.Id);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(worker.Id, buyer.Id);
+		var salesBeforeDelete = CatHasPawsDbContext.GetSalesByBuyerId(buyer.Id);
+		_buyerStorageContract.DelElement(buyer.Id);
+		var element = CatHasPawsDbContext.GetBuyerFromDatabase(buyer.Id);
+		var salesAfterDelete = CatHasPawsDbContext.GetSalesByBuyerId(buyer.Id);
+		var salesNoBuyers = CatHasPawsDbContext.GetSalesByBuyerId(null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(element, Is.Null);
+			Assert.That(salesBeforeDelete, Has.Length.EqualTo(2));
+			Assert.That(salesAfterDelete, Is.Empty);
+			Assert.That(salesNoBuyers, Has.Length.EqualTo(2));
+		});
+	}
+
+	[Test]
+	public void Try_DelElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _buyerStorageContract.DelElement(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	private static void AssertElement(BuyerDataModel? actual, Buyer expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.FIO, Is.EqualTo(expected.FIO));
+			Assert.That(actual.PhoneNumber, Is.EqualTo(expected.PhoneNumber));
+			Assert.That(actual.DiscountSize, Is.EqualTo(expected.DiscountSize));
+		});
+	}
+
+	private static BuyerDataModel CreateModel(string id, string fio = "test", string phoneNumber = "+7-777-777-77-77", double discountSize = 10)
+		=> new(id, fio, phoneNumber, discountSize);
+
+	private static void AssertElement(Buyer? actual, BuyerDataModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.FIO, Is.EqualTo(expected.FIO));
+			Assert.That(actual.PhoneNumber, Is.EqualTo(expected.PhoneNumber));
+			Assert.That(actual.DiscountSize, Is.EqualTo(expected.DiscountSize));
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/StoragesContracts/ManufacturerStorageContractTests.cs

@@ -0,0 +1,196 @@
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsDatabase;
+using CatHasPawsDatabase.Implementations;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+
+namespace CatHasPawsTests.StoragesContracts;
+
+[TestFixture]
+internal class ManufacturerStorageContractTests : BaseStorageContractTest
+{
+	private ManufacturerStorageContract _manufacturerStorageContract;
+
+	[SetUp]
+	public void SetUp()
+	{
+		_manufacturerStorageContract = new ManufacturerStorageContract(CatHasPawsDbContext);
+	}
+
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemoveProductsFromDatabase();
+		CatHasPawsDbContext.RemoveManufacturersFromDatabase();
+	}
+
+	[Test]
+	public void Try_GetList_WhenHaveRecords_Test()
+	{
+		var manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: "name 1");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: "name 2");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: "name 3");
+		var list = _manufacturerStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(3));
+		AssertElement(list.First(x => x.Id == manufacturer.Id), manufacturer);
+	}
+
+	[Test]
+	public void Try_GetList_WhenNoRecords_Test()
+	{
+		var list = _manufacturerStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.Empty);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenHaveRecord_Test()
+	{
+		var manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		AssertElement(_manufacturerStorageContract.GetElementById(manufacturer.Id), manufacturer);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		Assert.That(() => _manufacturerStorageContract.GetElementById(Guid.NewGuid().ToString()), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementByName_WhenHaveRecord_Test()
+	{
+		var manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		AssertElement(_manufacturerStorageContract.GetElementByName(manufacturer.ManufacturerName), manufacturer);
+	}
+
+	[Test]
+	public void Try_GetElementByName_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		Assert.That(() => _manufacturerStorageContract.GetElementByName("name"), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementByOldName_WhenHaveRecord_Test()
+	{
+		var manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		AssertElement(_manufacturerStorageContract.GetElementByOldName(manufacturer.PrevManufacturerName!), manufacturer);
+		AssertElement(_manufacturerStorageContract.GetElementByOldName(manufacturer.PrevPrevManufacturerName!), manufacturer);
+	}
+
+	[Test]
+	public void Try_GetElementByOldName_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		Assert.That(() => _manufacturerStorageContract.GetElementByOldName("name"), Is.Null);
+	}
+
+	[Test]
+	public void Try_AddElement_Test()
+	{
+		var manufacturer = CreateModel(Guid.NewGuid().ToString());
+		_manufacturerStorageContract.AddElement(manufacturer);
+		AssertElement(CatHasPawsDbContext.GetManufacturerFromDatabase(manufacturer.Id), manufacturer);
+	}
+
+	[Test]
+	public void Try_AddElement_WhenHaveRecordWithSameId_Test()
+	{
+		var manufacturer = CreateModel(Guid.NewGuid().ToString(), "name unique");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturer.Id);
+		Assert.That(() => _manufacturerStorageContract.AddElement(manufacturer), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_AddElement_WhenHaveRecordWithSameManufacturerName_Test()
+	{
+		var manufacturer = CreateModel(Guid.NewGuid().ToString(), "name unique");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: manufacturer.ManufacturerName);
+		Assert.That(() => _manufacturerStorageContract.AddElement(manufacturer), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_Test()
+	{
+		var manufacturer = CreateModel(Guid.NewGuid().ToString(), "name new", "test", "prev");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturer.Id, manufacturerName: manufacturer.PrevManufacturerName!, prevManufacturerName: manufacturer.PrevPrevManufacturerName!);
+		_manufacturerStorageContract.UpdElement(CreateModel(manufacturer.Id, "name new", "some name", "some name"));
+		AssertElement(CatHasPawsDbContext.GetManufacturerFromDatabase(manufacturer.Id), manufacturer);
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenNoChangeManufacturerName_Test()
+	{
+		var manufacturer = CreateModel(Guid.NewGuid().ToString(), "name new", "test", "prev");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturer.Id, manufacturerName: manufacturer.ManufacturerName!, prevManufacturerName: manufacturer.PrevManufacturerName!, prevPrevManufacturerName: manufacturer.PrevPrevManufacturerName!);
+		_manufacturerStorageContract.UpdElement(manufacturer);
+		AssertElement(CatHasPawsDbContext.GetManufacturerFromDatabase(manufacturer.Id), manufacturer);
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _manufacturerStorageContract.UpdElement(CreateModel(Guid.NewGuid().ToString())), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenHaveRecordWithSameManufacturerName_Test()
+	{
+		var manufacturer = CreateModel(Guid.NewGuid().ToString(), "name unique");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturer.Id, manufacturerName: "some name");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: manufacturer.ManufacturerName);
+		Assert.That(() => _manufacturerStorageContract.UpdElement(manufacturer), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_DelElement_WhenNoProducts_Test()
+	{
+		var manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		_manufacturerStorageContract.DelElement(manufacturer.Id);
+		Assert.That(CatHasPawsDbContext.GetManufacturerFromDatabase(manufacturer.Id), Is.Null);
+	}
+
+	[Test]
+	public void Try_DelElement_WhenHaveProducts_Test()
+	{
+		var manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(manufacturer.Id);
+		Assert.That(() => _manufacturerStorageContract.DelElement(manufacturer.Id), Throws.TypeOf<StorageException>());
+	}
+
+	[Test]
+	public void Try_DelElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _manufacturerStorageContract.DelElement(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	private static void AssertElement(ManufacturerDataModel? actual, Manufacturer expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.ManufacturerName, Is.EqualTo(expected.ManufacturerName));
+			Assert.That(actual.PrevManufacturerName, Is.EqualTo(expected.PrevManufacturerName));
+			Assert.That(actual.PrevPrevManufacturerName, Is.EqualTo(expected.PrevPrevManufacturerName));
+		});
+	}
+
+	private static ManufacturerDataModel CreateModel(string id, string manufacturerName = "test", string prevManufacturerName = "prev", string prevPrevManufacturerName = "prevPrev")
+		=> new(id, manufacturerName, prevManufacturerName, prevPrevManufacturerName);
+
+	private static void AssertElement(Manufacturer? actual, ManufacturerDataModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.ManufacturerName, Is.EqualTo(expected.ManufacturerName));
+			Assert.That(actual.PrevManufacturerName, Is.EqualTo(expected.PrevManufacturerName));
+			Assert.That(actual.PrevPrevManufacturerName, Is.EqualTo(expected.PrevPrevManufacturerName));
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/StoragesContracts/PostStorageContractTests.cs

@@ -0,0 +1,253 @@
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsDatabase.Implementations;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+
+namespace CatHasPawsTests.StoragesContracts;
+
+[TestFixture]
+internal class PostStorageContractTests : BaseStorageContractTest
+{
+	private PostStorageContract _postStorageContract;
+
+	[SetUp]
+	public void SetUp()
+	{
+		_postStorageContract = new PostStorageContract(CatHasPawsDbContext);
+	}
+
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemovePostsFromDatabase();
+	}
+
+	[Test]
+	public void Try_GetList_WhenHaveRecords_Test()
+	{
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: "name 1");
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: "name 2");
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: "name 3");
+		var list = _postStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(3));
+		AssertElement(list.First(x => x.Id == post.PostId), post);
+	}
+
+	[Test]
+	public void Try_GetList_WhenNoRecords_Test()
+	{
+		var list = _postStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.Empty);
+	}
+
+	[Test]
+	public void Try_GetPostWithHistory_WhenHaveRecords_Test()
+	{
+		var postId = Guid.NewGuid().ToString();
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: "name 1", isActual: true);
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postId, "name 2", isActual: true);
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postId, "name 2", isActual: false);
+		var list = _postStorageContract.GetPostWithHistory(postId);
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(2));
+	}
+
+	[Test]
+	public void Try_GetPostWithHistory_WhenNoRecords_Test()
+	{
+		var postId = Guid.NewGuid().ToString();
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: "name 1", isActual: true);
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postId, "name 2", isActual: true);
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postId, "name 2", isActual: false);
+		var list = _postStorageContract.GetPostWithHistory(Guid.NewGuid().ToString());
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenHaveRecord_Test()
+	{
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		AssertElement(_postStorageContract.GetElementById(post.PostId), post);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		Assert.That(() => _postStorageContract.GetElementById(Guid.NewGuid().ToString()), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenRecordWasDeleted_Test()
+	{
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(isActual: false);
+		Assert.That(() => _postStorageContract.GetElementById(post.PostId), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenTrySearchById_Test()
+	{
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		Assert.That(() => _postStorageContract.GetElementById(post.Id), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementByName_WhenHaveRecord_Test()
+	{
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		AssertElement(_postStorageContract.GetElementByName(post.PostName), post);
+	}
+
+	[Test]
+	public void Try_GetElementByName_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		Assert.That(() => _postStorageContract.GetElementByName("name"), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementByName_WhenRecordWasDeleted_Test()
+	{
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(isActual: false);
+		Assert.That(() => _postStorageContract.GetElementById(post.PostName), Is.Null);
+	}
+
+	[Test]
+	public void Try_AddElement_Test()
+	{
+		var post = CreateModel(Guid.NewGuid().ToString());
+		_postStorageContract.AddElement(post);
+		AssertElement(CatHasPawsDbContext.GetPostFromDatabaseByPostId(post.Id), post);
+	}
+
+	[Test]
+	public void Try_AddElement_WhenHaveRecordWithSameName_Test()
+	{
+		var post = CreateModel(Guid.NewGuid().ToString(), "name unique");
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: post.PostName, isActual: true);
+		Assert.That(() => _postStorageContract.AddElement(post), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_AddElement_WhenHaveRecordWithSamePostId_Test()
+	{
+		var post = CreateModel(Guid.NewGuid().ToString());
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(post.Id, isActual: true);
+		Assert.That(() => _postStorageContract.AddElement(post), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_Test()
+	{
+		var post = CreateModel(Guid.NewGuid().ToString());
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(post.Id, isActual: true);
+		_postStorageContract.UpdElement(post);
+		var posts = CatHasPawsDbContext.GetPostsFromDatabaseByPostId(post.Id);
+		Assert.That(posts, Is.Not.Null);
+		Assert.That(posts, Has.Length.EqualTo(2));
+		AssertElement(posts[0], CreateModel(post.Id));
+		AssertElement(posts[^1], CreateModel(post.Id));
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _postStorageContract.UpdElement(CreateModel(Guid.NewGuid().ToString())), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenHaveRecordWithSameName_Test()
+	{
+		var post = CreateModel(Guid.NewGuid().ToString(), "New Name");
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(post.Id, postName: "name");
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: post.PostName);
+		Assert.That(() => _postStorageContract.UpdElement(post), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenRecordWasDeleted_Test()
+	{
+		var post = CreateModel(Guid.NewGuid().ToString());
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(post.Id, isActual: false);
+		Assert.That(() => _postStorageContract.UpdElement(post), Throws.TypeOf<ElementDeletedException>());
+	}
+
+	[Test]
+	public void Try_DelElement_Test()
+	{
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(isActual: true);
+		_postStorageContract.DelElement(post.PostId);
+		Assert.That(CatHasPawsDbContext.GetPostFromDatabaseByPostId(post.PostId), Is.Null);
+	}
+
+	[Test]
+	public void Try_DelElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _postStorageContract.DelElement(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_DelElement_WhenRecordWasDeleted_Test()
+	{
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(isActual: false);
+		Assert.That(() => _postStorageContract.DelElement(post.PostId), Throws.TypeOf<ElementDeletedException>());
+	}
+
+	[Test]
+	public void Try_ResElement_Test()
+	{
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(isActual: false);
+		_postStorageContract.ResElement(post.PostId);
+		var element = CatHasPawsDbContext.GetPostFromDatabaseByPostId(post.PostId);
+		Assert.Multiple(() =>
+		{
+			Assert.That(element, Is.Not.Null);
+			Assert.That(element!.IsActual);
+		});
+	}
+
+	[Test]
+	public void Try_ResElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _postStorageContract.ResElement(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_ResElement_WhenRecordNotWasDeleted_Test()
+	{
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(isActual: true);
+		Assert.That(() => _postStorageContract.ResElement(post.PostId), Throws.Nothing);
+	}
+
+	private static void AssertElement(PostDataModel? actual, Post expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.PostId));
+			Assert.That(actual.PostName, Is.EqualTo(expected.PostName));
+			Assert.That(actual.PostType, Is.EqualTo(expected.PostType));
+			Assert.That(actual.Salary, Is.EqualTo(expected.Salary));
+		});
+	}
+
+	private static PostDataModel CreateModel(string postId, string postName = "test", PostType postType = PostType.Assistant, double salary = 10)
+		=> new(postId, postName, postType, salary);
+
+	private static void AssertElement(Post? actual, PostDataModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.PostId, Is.EqualTo(expected.Id));
+			Assert.That(actual.PostName, Is.EqualTo(expected.PostName));
+			Assert.That(actual.PostType, Is.EqualTo(expected.PostType));
+			Assert.That(actual.Salary, Is.EqualTo(expected.Salary));
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/StoragesContracts/ProductStorageContractTests.cs

@@ -0,0 +1,325 @@
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsDatabase.Implementations;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+
+namespace CatHasPawsTests.StoragesContracts;
+
+[TestFixture]
+internal class ProductStorageContractTests : BaseStorageContractTest
+{
+	private ProductStorageContract _productStorageContract;
+	private Manufacturer _manufacturer;
+
+	[SetUp]
+	public void SetUp()
+	{
+		_productStorageContract = new ProductStorageContract(CatHasPawsDbContext);
+		_manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+	}
+
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemoveProductsFromDatabase();
+		CatHasPawsDbContext.RemoveManufacturersFromDatabase();
+	}
+
+	[Test]
+	public void Try_GetList_WhenHaveRecords_Test()
+	{
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 1");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 2");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 3");
+		var list = _productStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(3));
+		AssertElement(list.First(x => x.Id == product.Id), product);
+	}
+
+	[Test]
+	public void Try_GetList_WhenNoRecords_Test()
+	{
+		var list = _productStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.Empty);
+	}
+
+	[Test]
+	public void Try_GetList_OnlyActual_Test()
+	{
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 1", isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 2", isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 3", isDeleted: false);
+		var list = _productStorageContract.GetList(onlyActive: true);
+		Assert.That(list, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(list, Has.Count.EqualTo(2));
+			Assert.That(!list.Any(x => x.IsDeleted));
+		});
+	}
+
+	[Test]
+	public void Try_GetList_IncludeNoActual_Test()
+	{
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 1", isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 2", isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 3", isDeleted: false);
+		var list = _productStorageContract.GetList(onlyActive: false);
+		Assert.That(list, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(list, Has.Count.EqualTo(3));
+			Assert.That(list.Count(x => x.IsDeleted), Is.EqualTo(2));
+			Assert.That(list.Count(x => !x.IsDeleted), Is.EqualTo(1));
+		});
+	}
+
+	[Test]
+	public void Try_GetList_ByManufacturer_Test()
+	{
+		var manufacruer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: "name 2");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 1", isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 2", isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(manufacruer.Id, productName: "name 3", isDeleted: false);
+		var list = _productStorageContract.GetList(manufacturerId: _manufacturer.Id, onlyActive: false);
+		Assert.That(list, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(list, Has.Count.EqualTo(2));
+			Assert.That(list.All(x => x.ManufacturerId == _manufacturer.Id));
+		});
+	}
+
+	[Test]
+	public void Try_GetList_ByManufacturerOnlyActual_Test()
+	{
+		var manufacruer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: "name 2");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 1", isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "name 2", isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(manufacruer.Id, productName: "name 3", isDeleted: false);
+		var list = _productStorageContract.GetList(manufacturerId: _manufacturer.Id, onlyActive: true);
+		Assert.That(list, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(list, Has.Count.EqualTo(1));
+			Assert.That(list.All(x => x.ManufacturerId == _manufacturer.Id && !x.IsDeleted));
+		});
+	}
+
+	[Test]
+	public void Try_GetHistoryByProductId_WhenHaveRecords_Test()
+	{
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id);
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 20, DateTime.UtcNow.AddDays(-1));
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 30, DateTime.UtcNow.AddMinutes(-10));
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 40, DateTime.UtcNow.AddDays(1));
+		var list = _productStorageContract.GetHistoryByProductId(product.Id);
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(3));
+	}
+
+	[Test]
+	public void Try_GetHistoryByProductId_WhenNoRecords_Test()
+	{
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id);
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 20, DateTime.UtcNow.AddDays(-1));
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 30, DateTime.UtcNow.AddMinutes(-10));
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 40, DateTime.UtcNow.AddDays(1));
+		var list = _productStorageContract.GetHistoryByProductId(Guid.NewGuid().ToString());
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenHaveRecord_Test()
+	{
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id);
+		AssertElement(_productStorageContract.GetElementById(product.Id), product);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id);
+		Assert.That(() => _productStorageContract.GetElementById(Guid.NewGuid().ToString()), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenRecordWasDeleted_Test()
+	{
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, isDeleted: true);
+		Assert.That(() => _productStorageContract.GetElementById(product.Id), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementByName_WhenHaveRecord_Test()
+	{
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id);
+		AssertElement(_productStorageContract.GetElementByName(product.ProductName), product);
+	}
+
+	[Test]
+	public void Try_GetElementByName_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id);
+		Assert.That(() => _productStorageContract.GetElementByName("name"), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementByName_WhenRecordWasDeleted_Test()
+	{
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, isDeleted: true);
+		Assert.That(() => _productStorageContract.GetElementById(product.ProductName), Is.Null);
+	}
+
+	[Test]
+	public void Try_AddElement_Test()
+	{
+		var product = CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id, isDeleted: false);
+		_productStorageContract.AddElement(product);
+		AssertElement(CatHasPawsDbContext.GetProductFromDatabaseById(product.Id), product);
+	}
+
+	[Test]
+	public void Try_AddElement_WhenIsDeletedIsTrue_Test()
+	{
+		var product = CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id, isDeleted: true);
+		Assert.That(() => _productStorageContract.AddElement(product), Throws.Nothing);
+		AssertElement(CatHasPawsDbContext.GetProductFromDatabaseById(product.Id), CreateModel(product.Id, _manufacturer.Id, isDeleted: false));
+	}
+
+	[Test]
+	public void Try_AddElement_WhenHaveRecordWithSameId_Test()
+	{
+		var product = CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, product.Id, productName: "name unique");
+		Assert.That(() => _productStorageContract.AddElement(product), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_AddElement_WhenHaveRecordWithSameName_Test()
+	{
+		var product = CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id, "name unique", isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: product.ProductName, isDeleted: false);
+		Assert.That(() => _productStorageContract.AddElement(product), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_AddElement_WhenHaveRecordWithSameNameButOneWasDeleted_Test()
+	{
+		var product = CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id, "name unique", isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: product.ProductName, isDeleted: true);
+		Assert.That(() => _productStorageContract.AddElement(product), Throws.Nothing);
+	}
+
+	[Test]
+	public void Try_UpdElement_Test()
+	{
+		var product = CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id, isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, id: product.Id, isDeleted: false);
+		_productStorageContract.UpdElement(product);
+		AssertElement(CatHasPawsDbContext.GetProductFromDatabaseById(product.Id), product);
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenIsDeletedIsTrue_Test()
+	{
+		var product = CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id, isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, product.Id, isDeleted: false);
+		_productStorageContract.UpdElement(product);
+		AssertElement(CatHasPawsDbContext.GetProductFromDatabaseById(product.Id), CreateModel(product.Id, _manufacturer.Id, isDeleted: false));
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _productStorageContract.UpdElement(CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id)), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenHaveRecordWithSameName_Test()
+	{
+		var product = CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id, "name unique", isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, product.Id, productName: "name");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: product.ProductName);
+		Assert.That(() => _productStorageContract.UpdElement(product), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenHaveRecordWithSameNameButOneWasDeleted_Test()
+	{
+		var product = CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id, "name unique", isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, product.Id, productName: "name");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: product.ProductName, isDeleted: true);
+		Assert.That(() => _productStorageContract.UpdElement(product), Throws.Nothing);
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenRecordWasDeleted_Test()
+	{
+		var product = CreateModel(Guid.NewGuid().ToString(), _manufacturer.Id);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, product.Id, isDeleted: true);
+		Assert.That(() => _productStorageContract.UpdElement(product), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_DelElement_Test()
+	{
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, isDeleted: false);
+		_productStorageContract.DelElement(product.Id);
+		var element = CatHasPawsDbContext.GetProductFromDatabaseById(product.Id);
+		Assert.Multiple(() =>
+		{
+			Assert.That(element, Is.Not.Null);
+			Assert.That(element!.IsDeleted);
+		});
+	}
+
+	[Test]
+	public void Try_DelElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _productStorageContract.DelElement(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_DelElement_WhenRecordWasDeleted_Test()
+	{
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, isDeleted: true);
+		Assert.That(() => _productStorageContract.DelElement(product.Id), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	private static void AssertElement(ProductDataModel? actual, Product expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.ManufacturerId, Is.EqualTo(expected.ManufacturerId));
+			Assert.That(actual.ProductName, Is.EqualTo(expected.ProductName));
+			Assert.That(actual.ProductType, Is.EqualTo(expected.ProductType));
+			Assert.That(actual.Price, Is.EqualTo(expected.Price));
+			Assert.That(actual.IsDeleted, Is.EqualTo(expected.IsDeleted));
+		});
+	}
+
+	private static ProductDataModel CreateModel(string id, string manufacturerId, string productName = "test", ProductType productType = ProductType.Feed, double price = 1, bool isDeleted = false)
+		=> new(id, productName, productType, manufacturerId, price, isDeleted);
+
+	private static void AssertElement(Product? actual, ProductDataModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.ManufacturerId, Is.EqualTo(expected.ManufacturerId));
+			Assert.That(actual.ProductName, Is.EqualTo(expected.ProductName));
+			Assert.That(actual.ProductType, Is.EqualTo(expected.ProductType));
+			Assert.That(actual.Price, Is.EqualTo(expected.Price));
+			Assert.That(actual.IsDeleted, Is.EqualTo(expected.IsDeleted));
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/StoragesContracts/SalaryStorageContractTests.cs

@@ -0,0 +1,131 @@
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsDatabase;
+using CatHasPawsDatabase.Implementations;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+
+namespace CatHasPawsTests.StoragesContracts;
+
+[TestFixture]
+internal class SalaryStorageContractTests : BaseStorageContractTest
+{
+	private SalaryStorageContract _salaryStorageContract;
+	private Worker _worker;
+
+	[SetUp]
+	public void SetUp()
+	{
+		_salaryStorageContract = new SalaryStorageContract(CatHasPawsDbContext);
+		_worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+	}
+
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemoveSalariesFromDatabase();
+		CatHasPawsDbContext.RemoveWorkersFromDatabase();
+	}
+
+	[Test]
+	public void Try_GetList_WhenHaveRecords_Test()
+	{
+		var salary = CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, workerSalary: 100);
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id);
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id);
+		var list = _salaryStorageContract.GetList(DateTime.UtcNow.AddDays(-10), DateTime.UtcNow.AddDays(10));
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(3));
+		AssertElement(list.Single(x => x.Salary == salary.WorkerSalary), salary);
+	}
+
+	[Test]
+	public void Try_GetList_WhenNoRecords_Test()
+	{
+		var list = _salaryStorageContract.GetList(DateTime.UtcNow.AddDays(-10), DateTime.UtcNow.AddDays(10));
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.Empty);
+	}
+
+	[Test]
+	public void Try_GetList_OnlyInDatePeriod_Test()
+	{
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, salaryDate: DateTime.UtcNow.AddDays(-2));
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, salaryDate: DateTime.UtcNow.AddDays(-1).AddMinutes(-5));
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, salaryDate: DateTime.UtcNow.AddDays(-1).AddMinutes(5));
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, salaryDate: DateTime.UtcNow.AddDays(1).AddMinutes(-5));
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, salaryDate: DateTime.UtcNow.AddDays(1).AddMinutes(5));
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, salaryDate: DateTime.UtcNow.AddDays(-2));
+		var list = _salaryStorageContract.GetList(DateTime.UtcNow.AddDays(-1), DateTime.UtcNow.AddDays(1));
+		Assert.That(list, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(list, Has.Count.EqualTo(2));
+		});
+	}
+
+	[Test]
+	public void Try_GetList_ByWorker_Test()
+	{
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "name 2");
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id);
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id);
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(worker.Id);
+		var list = _salaryStorageContract.GetList(DateTime.UtcNow.AddDays(-1), DateTime.UtcNow.AddDays(1), _worker.Id);
+		Assert.That(list, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(list, Has.Count.EqualTo(2));
+			Assert.That(list.All(x => x.WorkerId == _worker.Id));
+		});
+	}
+
+	[Test]
+	public void Try_GetList_ByWorkerOnlyInDatePeriod_Test()
+	{
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "name 2");
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, salaryDate: DateTime.UtcNow.AddDays(-2));
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, salaryDate: DateTime.UtcNow.AddDays(-1).AddMinutes(5));
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(worker.Id, salaryDate: DateTime.UtcNow.AddDays(-1).AddMinutes(5));
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, salaryDate: DateTime.UtcNow.AddDays(1).AddMinutes(-5));
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(worker.Id, salaryDate: DateTime.UtcNow.AddDays(1).AddMinutes(-5));
+		CatHasPawsDbContext.InsertSalaryToDatabaseAndReturn(_worker.Id, salaryDate: DateTime.UtcNow.AddDays(-2));
+		var list = _salaryStorageContract.GetList(DateTime.UtcNow.AddDays(-1), DateTime.UtcNow.AddDays(1), _worker.Id);
+		Assert.That(list, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(list, Has.Count.EqualTo(2));
+			Assert.That(list.All(x => x.WorkerId == _worker.Id));
+		});
+	}
+
+	[Test]
+	public void Try_AddElement_Test()
+	{
+		var salary = CreateModel(_worker.Id);
+		_salaryStorageContract.AddElement(salary);
+		AssertElement(CatHasPawsDbContext.GetSalariesFromDatabaseByWorkerId(_worker.Id).First(), salary);
+	}
+
+	private static void AssertElement(SalaryDataModel? actual, Salary expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.WorkerId, Is.EqualTo(expected.WorkerId));
+			Assert.That(actual.Salary, Is.EqualTo(expected.WorkerSalary));
+		});
+	}
+
+	private static SalaryDataModel CreateModel(string workerId, double workerSalary = 1, DateTime? salaryDate = null)
+		=> new(workerId, salaryDate ?? DateTime.UtcNow, workerSalary);
+
+	private static void AssertElement(Salary? actual, SalaryDataModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.WorkerId, Is.EqualTo(expected.WorkerId));
+			Assert.That(actual.WorkerSalary, Is.EqualTo(expected.Salary));
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/StoragesContracts/SaleStorageContractTests.cs

@@ -0,0 +1,263 @@
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsDatabase.Implementations;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+
+namespace CatHasPawsTests.StoragesContracts;
+
+[TestFixture]
+internal class SaleStorageContractTests : BaseStorageContractTest
+{
+	private SaleStorageContract _saletStorageContract;
+	private Buyer _buyer;
+	private Worker _worker;
+	private Manufacturer _manufacturer;
+	private Product _product;
+
+	[SetUp]
+	public void SetUp()
+	{
+		_saletStorageContract = new SaleStorageContract(CatHasPawsDbContext);
+		_manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		_buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		_worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+		_product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id);
+	}
+
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemoveSalesFromDatabase();
+		CatHasPawsDbContext.RemoveWorkersFromDatabase();
+		CatHasPawsDbContext.RemoveBuyersFromDatabase();
+		CatHasPawsDbContext.RemoveProductsFromDatabase();
+		CatHasPawsDbContext.RemoveManufacturersFromDatabase();
+	}
+
+	[Test]
+	public void Try_GetList_WhenHaveRecords_Test()
+	{
+		var sale = CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 5, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, null, products: [(_product.Id, 10, 1.2)]);
+		var list = _saletStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(3));
+		AssertElement(list.First(x => x.Id == sale.Id), sale);
+	}
+
+	[Test]
+	public void Try_GetList_WhenNoRecords_Test()
+	{
+		var list = _saletStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.Empty);
+	}
+
+	[Test]
+	public void Try_GetList_ByPeriod_Test()
+	{
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, saleDate: DateTime.UtcNow.AddDays(-1).AddMinutes(-3), products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, saleDate: DateTime.UtcNow.AddDays(-1).AddMinutes(3), products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, null, saleDate: DateTime.UtcNow.AddDays(1).AddMinutes(-3), products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, null, saleDate: DateTime.UtcNow.AddDays(1).AddMinutes(3), products: [(_product.Id, 1, 1.2)]);
+		var list = _saletStorageContract.GetList(startDate: DateTime.UtcNow.AddDays(-1), endDate: DateTime.UtcNow.AddDays(1));
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(2));
+	}
+
+	[Test]
+	public void Try_GetList_ByWorkerId_Test()
+	{
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "Other worker");
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(worker.Id, null, products: [(_product.Id, 1, 1.2)]);
+		var list = _saletStorageContract.GetList(workerId: _worker.Id);
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(2));
+		Assert.That(list.All(x => x.WorkerId == _worker.Id));
+	}
+
+	[Test]
+	public void Try_GetList_ByBuyerId_Test()
+	{
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(fio: "Other fio", phoneNumber: "+8-888-888-88-88");
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, buyer.Id, products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, null, products: [(_product.Id, 1, 1.2)]);
+		var list = _saletStorageContract.GetList(buyerId: _buyer.Id);
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(2));
+		Assert.That(list.All(x => x.BuyerId == _buyer.Id));
+	}
+
+	[Test]
+	public void Try_GetList_ByProductId_Test()
+	{
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "Other name");
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 5, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2), (product.Id, 4, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, null, products: [(product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, null, products: [(product.Id, 1, 1.2), (_product.Id, 1, 1.2)]);
+		var list = _saletStorageContract.GetList(productId: _product.Id);
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(3));
+		Assert.That(list.All(x => x.Products!.Any(y => y.ProductId == _product.Id)));
+	}
+
+	[Test]
+	public void Try_GetList_ByAllParameters_Test()
+	{
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "Other worker");
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(fio: "Other fio", phoneNumber: "+8-888-888-88-88");
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturer.Id, productName: "Other name");
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, saleDate: DateTime.UtcNow.AddDays(-1).AddMinutes(-3), products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(worker.Id, null, saleDate: DateTime.UtcNow.AddDays(-1).AddMinutes(3), products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(worker.Id, _buyer.Id, saleDate: DateTime.UtcNow.AddDays(-1).AddMinutes(3), products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(worker.Id, _buyer.Id, saleDate: DateTime.UtcNow.AddDays(-1).AddMinutes(3), products: [(product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, buyer.Id, saleDate: DateTime.UtcNow.AddDays(1).AddMinutes(-3), products: [(_product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, saleDate: DateTime.UtcNow.AddDays(1).AddMinutes(-3), products: [(product.Id, 1, 1.2)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(worker.Id, null, saleDate: DateTime.UtcNow.AddDays(1).AddMinutes(-3), products: [(_product.Id, 1, 1.2)]);
+		var list = _saletStorageContract.GetList(startDate: DateTime.UtcNow.AddDays(-1), endDate: DateTime.UtcNow.AddDays(1), workerId: _worker.Id, buyerId: _buyer.Id, productId: product.Id);
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(1));
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenHaveRecord_Test()
+	{
+		var sale = CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2)]);
+		AssertElement(_saletStorageContract.GetElementById(sale.Id), sale);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenNoRecord_Test()
+	{
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2)]);
+		Assert.That(() => _saletStorageContract.GetElementById(Guid.NewGuid().ToString()), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenRecordHasCanceled_Test()
+	{
+		var sale = CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2)], isCancel: true);
+		AssertElement(_saletStorageContract.GetElementById(sale.Id), sale);
+	}
+
+	[Test]
+	public void Try_AddElement_Test()
+	{
+		var sale = CreateModel(Guid.NewGuid().ToString(), _worker.Id, _buyer.Id, DiscountType.RegularCustomer, false, [_product.Id]);
+		_saletStorageContract.AddElement(sale);
+		AssertElement(CatHasPawsDbContext.GetSaleFromDatabaseById(sale.Id), sale);
+	}
+
+	[Test]
+	public void Try_AddElement_WhenIsDeletedIsTrue_Test()
+	{
+		var sale = CreateModel(Guid.NewGuid().ToString(), _worker.Id, _buyer.Id, DiscountType.RegularCustomer, true, [_product.Id]);
+		Assert.That(() => _saletStorageContract.AddElement(sale), Throws.Nothing);
+		AssertElement(CatHasPawsDbContext.GetSaleFromDatabaseById(sale.Id), CreateModel(sale.Id, _worker.Id, _buyer.Id, DiscountType.RegularCustomer, false, [_product.Id]));
+	}
+
+	[Test]
+	public void Try_DelElement_Test()
+	{
+		var sale = CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2)], isCancel: false);
+		_saletStorageContract.DelElement(sale.Id);
+		var element = CatHasPawsDbContext.GetSaleFromDatabaseById(sale.Id);
+		Assert.Multiple(() =>
+		{
+			Assert.That(element, Is.Not.Null);
+			Assert.That(element!.IsCancel);
+		});
+	}
+
+	[Test]
+	public void Try_DelElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _saletStorageContract.DelElement(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_DelElement_WhenRecordWasCanceled_Test()
+	{
+		var sale = CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_worker.Id, _buyer.Id, products: [(_product.Id, 1, 1.2)], isCancel: true);
+		Assert.That(() => _saletStorageContract.DelElement(sale.Id), Throws.TypeOf<ElementDeletedException>());
+	}
+
+	private static void AssertElement(SaleDataModel? actual, Sale expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.WorkerId, Is.EqualTo(expected.WorkerId));
+			Assert.That(actual.BuyerId, Is.EqualTo(expected.BuyerId));
+			Assert.That(actual.DiscountType, Is.EqualTo(expected.DiscountType));
+			Assert.That(actual.Discount, Is.EqualTo(expected.Discount));
+			Assert.That(actual.IsCancel, Is.EqualTo(expected.IsCancel));
+		});
+
+		if (expected.SaleProducts is not null)
+		{
+			Assert.That(actual.Products, Is.Not.Null);
+			Assert.That(actual.Products, Has.Count.EqualTo(expected.SaleProducts.Count));
+			for (int i = 0; i < actual.Products.Count; ++i)
+			{
+				Assert.Multiple(() =>
+				{
+					Assert.That(actual.Products[i].ProductId, Is.EqualTo(expected.SaleProducts[i].ProductId));
+					Assert.That(actual.Products[i].Count, Is.EqualTo(expected.SaleProducts[i].Count));
+				});
+			}
+		}
+		else
+		{
+			Assert.That(actual.Products, Is.Null);
+		}
+	}
+
+	private static SaleDataModel CreateModel(string id, string workerId, string? buyerId, DiscountType discountType, bool isCancel, List<string> productIds)
+	{
+		var products = productIds.Select(x => new SaleProductDataModel(id, x, 1, 1.1)).ToList();
+		return new(id, workerId, buyerId, discountType, isCancel, products);
+	}
+
+	private static void AssertElement(Sale? actual, SaleDataModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.WorkerId, Is.EqualTo(expected.WorkerId));
+			Assert.That(actual.BuyerId, Is.EqualTo(expected.BuyerId));
+			Assert.That(actual.DiscountType, Is.EqualTo(expected.DiscountType));
+			Assert.That(actual.Discount, Is.EqualTo(expected.Discount));
+			Assert.That(actual.IsCancel, Is.EqualTo(expected.IsCancel));
+		});
+
+		if (expected.Products is not null)
+		{
+			Assert.That(actual.SaleProducts, Is.Not.Null);
+			Assert.That(actual.SaleProducts, Has.Count.EqualTo(expected.Products.Count));
+			for (int i = 0; i < actual.SaleProducts.Count; ++i)
+			{
+				Assert.Multiple(() =>
+				{
+					Assert.That(actual.SaleProducts[i].ProductId, Is.EqualTo(expected.Products[i].ProductId));
+					Assert.That(actual.SaleProducts[i].Count, Is.EqualTo(expected.Products[i].Count));
+					Assert.That(actual.SaleProducts[i].Price, Is.EqualTo(expected.Products[i].Price));
+				});
+			}
+		}
+		else
+		{
+			Assert.That(actual.SaleProducts, Is.Null);
+		}
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/StoragesContracts/WorkerStorageContractTests.cs

@@ -0,0 +1,215 @@
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsDatabase.Implementations;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+
+namespace CatHasPawsTests.StoragesContracts;
+
+[TestFixture]
+internal class WorkerStorageContractTests : BaseStorageContractTest
+{
+	private WorkerStorageContract _workerStorageContract;
+
+	[SetUp]
+	public void SetUp()
+	{
+		_workerStorageContract = new WorkerStorageContract(CatHasPawsDbContext);
+	}
+
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemoveWorkersFromDatabase();
+	}
+
+	[Test]
+	public void Try_GetList_WhenHaveRecords_Test()
+	{
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1");
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2");
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3");
+		var list = _workerStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(3));
+		AssertElement(list.First(x => x.FIO == worker.FIO), worker);
+	}
+
+	[Test]
+	public void Try_GetList_WhenNoRecords_Test()
+	{
+		var list = _workerStorageContract.GetList();
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.Empty);
+	}
+
+	[Test]
+	public void Try_GetList_ByPostId_Test()
+	{
+		var postId = Guid.NewGuid().ToString();
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", postId: postId);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2", postId: postId);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3");
+		var list = _workerStorageContract.GetList(postId: postId);
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(2));
+		Assert.That(list.All(x => x.PostId == postId));
+	}
+
+	[Test]
+	public void Try_GetList_ByBirthDate_Test()
+	{
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", birthDate: DateTime.UtcNow.AddYears(-25));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2", birthDate: DateTime.UtcNow.AddYears(-21));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3", birthDate: DateTime.UtcNow.AddYears(-20));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 4", birthDate: DateTime.UtcNow.AddYears(-19));
+		var list = _workerStorageContract.GetList(fromBirthDate: DateTime.UtcNow.AddYears(-21).AddMinutes(-1), toBirthDate: DateTime.UtcNow.AddYears(-20).AddMinutes(1));
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(2));
+	}
+
+	[Test]
+	public void Try_GetList_ByEmploymentDate_Test()
+	{
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", employmentDate: DateTime.UtcNow.AddDays(-2));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2", employmentDate: DateTime.UtcNow.AddDays(-1));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3", employmentDate: DateTime.UtcNow.AddDays(1));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 4", employmentDate: DateTime.UtcNow.AddDays(2));
+		var list = _workerStorageContract.GetList(fromEmploymentDate: DateTime.UtcNow.AddDays(-1).AddMinutes(-1), toEmploymentDate: DateTime.UtcNow.AddDays(1).AddMinutes(1));
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(2));
+	}
+
+	[Test]
+	public void Try_GetList_ByAllParameters_Test()
+	{
+		var postId = Guid.NewGuid().ToString();
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", postId: postId, birthDate: DateTime.UtcNow.AddYears(-25), employmentDate: DateTime.UtcNow.AddDays(-2));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2", postId: postId, birthDate: DateTime.UtcNow.AddYears(-22), employmentDate: DateTime.UtcNow.AddDays(-1));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3", postId: postId, birthDate: DateTime.UtcNow.AddYears(-21), employmentDate: DateTime.UtcNow.AddDays(-1));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 4", birthDate: DateTime.UtcNow.AddYears(-20), employmentDate: DateTime.UtcNow.AddDays(1));
+		var list = _workerStorageContract.GetList(postId: postId, fromBirthDate: DateTime.UtcNow.AddYears(-21).AddMinutes(-1), toBirthDate: DateTime.UtcNow.AddYears(-20).AddMinutes(1), fromEmploymentDate: DateTime.UtcNow.AddDays(-1).AddMinutes(-1), toEmploymentDate: DateTime.UtcNow.AddDays(1).AddMinutes(1));
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(1));
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenHaveRecord_Test()
+	{
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+		AssertElement(_workerStorageContract.GetElementById(worker.Id), worker);
+	}
+
+	[Test]
+	public void Try_GetElementById_WhenNoRecord_Test()
+	{
+		Assert.That(() => _workerStorageContract.GetElementById(Guid.NewGuid().ToString()), Is.Null);
+	}
+
+	[Test]
+	public void Try_GetElementByFIO_WhenHaveRecord_Test()
+	{
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+		AssertElement(_workerStorageContract.GetElementByFIO(worker.FIO), worker);
+	}
+
+	[Test]
+	public void Try_GetElementByFIO_WhenNoRecord_Test()
+	{
+		Assert.That(() => _workerStorageContract.GetElementByFIO("New Fio"), Is.Null);
+	}
+
+	[Test]
+	public void Try_AddElement_Test()
+	{
+		var worker = CreateModel(Guid.NewGuid().ToString());
+		_workerStorageContract.AddElement(worker);
+		AssertElement(CatHasPawsDbContext.GetWorkerFromDatabaseById(worker.Id), worker);
+	}
+
+	[Test]
+	public void Try_AddElement_WhenHaveRecordWithSameId_Test()
+	{
+		var worker = CreateModel(Guid.NewGuid().ToString());
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(worker.Id);
+		Assert.That(() => _workerStorageContract.AddElement(worker), Throws.TypeOf<ElementExistsException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_Test()
+	{
+		var worker = CreateModel(Guid.NewGuid().ToString(), "New Fio");
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(worker.Id);
+		_workerStorageContract.UpdElement(worker);
+		AssertElement(CatHasPawsDbContext.GetWorkerFromDatabaseById(worker.Id), worker);
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _workerStorageContract.UpdElement(CreateModel(Guid.NewGuid().ToString())), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_UpdElement_WhenNoRecordWasDeleted_Test()
+	{
+		var worker = CreateModel(Guid.NewGuid().ToString());
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(worker.Id, isDeleted: true);
+		Assert.That(() => _workerStorageContract.UpdElement(worker), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_DelElement_Test()
+	{
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(Guid.NewGuid().ToString());
+		_workerStorageContract.DelElement(worker.Id);
+		var element = CatHasPawsDbContext.GetWorkerFromDatabaseById(worker.Id);
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.IsDeleted);
+	}
+
+	[Test]
+	public void Try_DelElement_WhenNoRecordWithThisId_Test()
+	{
+		Assert.That(() => _workerStorageContract.DelElement(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	[Test]
+	public void Try_DelElement_WhenNoRecordWasDeleted_Test()
+	{
+		var worker = CreateModel(Guid.NewGuid().ToString());
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(worker.Id, isDeleted: true);
+		Assert.That(() => _workerStorageContract.DelElement(worker.Id), Throws.TypeOf<ElementNotFoundException>());
+	}
+
+	private static void AssertElement(WorkerDataModel? actual, Worker expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.PostId, Is.EqualTo(expected.PostId));
+			Assert.That(actual.FIO, Is.EqualTo(expected.FIO));
+			Assert.That(actual.BirthDate, Is.EqualTo(expected.BirthDate));
+			Assert.That(actual.EmploymentDate, Is.EqualTo(expected.EmploymentDate));
+			Assert.That(actual.IsDeleted, Is.EqualTo(expected.IsDeleted));
+		});
+	}
+
+	private static WorkerDataModel CreateModel(string id, string fio = "fio", string? postId = null, DateTime? birthDate = null, DateTime? employmentDate = null, bool isDeleted = false) =>
+		new(id, fio, postId ?? Guid.NewGuid().ToString(), birthDate ?? DateTime.UtcNow.AddYears(-20), employmentDate ?? DateTime.UtcNow, isDeleted);
+
+	private static void AssertElement(Worker? actual, WorkerDataModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.PostId, Is.EqualTo(expected.PostId));
+			Assert.That(actual.FIO, Is.EqualTo(expected.FIO));
+			Assert.That(actual.BirthDate, Is.EqualTo(expected.BirthDate));
+			Assert.That(actual.EmploymentDate, Is.EqualTo(expected.EmploymentDate));
+			Assert.That(actual.IsDeleted, Is.EqualTo(expected.IsDeleted));
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/WebApiControllersTests/BaseWebApiControllerTest.cs

@@ -0,0 +1,68 @@
+using CatHasPawsDatabase;
+using CatHasPawsTests.Infrastructure;
+using Microsoft.AspNetCore.Mvc.Testing;
+using Microsoft.AspNetCore.TestHost;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using Serilog;
+using System.Text;
+using System.Text.Json;
+
+namespace CatHasPawsTests.WebApiControllersTests;
+
+internal class BaseWebApiControllerTest
+{
+	private WebApplicationFactory<Program> _webApplication;
+
+	protected HttpClient HttpClient { get; private set; }
+
+	protected CatHasPawsDbContext CatHasPawsDbContext { get; private set; }
+
+	protected static readonly JsonSerializerOptions JsonSerializerOptions = new() { PropertyNameCaseInsensitive = true };
+
+	[OneTimeSetUp]
+	public void OneTimeSetUp()
+	{
+		_webApplication = new CustomWebApplicationFactory<Program>();
+		HttpClient = _webApplication
+			.WithWebHostBuilder(builder =>
+			{
+				builder.ConfigureTestServices(services =>
+				{
+					using var loggerFactory = new LoggerFactory();
+					loggerFactory.AddSerilog(new LoggerConfiguration()
+						.ReadFrom.Configuration(new ConfigurationBuilder()
+							.SetBasePath(Directory.GetCurrentDirectory())
+							.AddJsonFile("appsettings.json")
+							.Build())
+						.CreateLogger());
+					services.AddSingleton(loggerFactory);
+				});
+			})
+			.CreateClient();
+
+		var request = HttpClient.GetAsync("/login/user").GetAwaiter().GetResult();
+		var data = request.Content.ReadAsStringAsync().GetAwaiter().GetResult();
+		HttpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {data}");
+
+		CatHasPawsDbContext = _webApplication.Services.GetRequiredService<CatHasPawsDbContext>();
+		CatHasPawsDbContext.Database.EnsureDeleted();
+		CatHasPawsDbContext.Database.EnsureCreated();
+	}
+
+	[OneTimeTearDown]
+	public void OneTimeTearDown()
+	{
+		CatHasPawsDbContext?.Database.EnsureDeleted();
+		CatHasPawsDbContext?.Dispose();
+		HttpClient?.Dispose();
+		_webApplication?.Dispose();
+	}
+
+	protected static async Task<T?> GetModelFromResponseAsync<T>(HttpResponseMessage response) =>
+		JsonSerializer.Deserialize<T>(await response.Content.ReadAsStringAsync(), JsonSerializerOptions);
+
+	protected static StringContent MakeContent(object model) =>
+		new(JsonSerializer.Serialize(model), Encoding.UTF8, "application/json");
+}

TheCatHasPawsProject/CatHasPawsTests/WebApiControllersTests/BuyerControllerTests.cs

@@ -0,0 +1,371 @@
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.ViewModels;
+using CatHasPawsDatabase;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+using System.Net;
+
+namespace CatHasPawsTests.WebApiControllersTests;
+
+[TestFixture]
+internal class BuyerControllerTests : BaseWebApiControllerTest
+{
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemoveSalesFromDatabase();
+		CatHasPawsDbContext.RemoveWorkersFromDatabase();
+		CatHasPawsDbContext.RemoveBuyersFromDatabase();
+	}
+
+	[Test]
+	public async Task GetList_WhenHaveRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(phoneNumber: "+5-555-555-55-55");
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(phoneNumber: "+6-666-666-66-66");
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(phoneNumber: "+7-777-777-77-77");
+		//Act
+		var response = await HttpClient.GetAsync("/api/buyers");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<BuyerViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(3));
+		});
+		AssertElement(data.First(x => x.Id == buyer.Id), buyer);
+	}
+
+	[Test]
+	public async Task GetList_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync("/api/buyers");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<BuyerViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(0));
+		});
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/buyers/{buyer.Id}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<BuyerViewModel>(response), buyer);
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/buyers/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ByFIO_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/buyers/{buyer.FIO}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<BuyerViewModel>(response), buyer);
+	}
+
+	[Test]
+	public async Task GetElement_ByFIO_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/buyers/New%20Fio");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ByPhoneNumber_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/buyers/{buyer.PhoneNumber}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<BuyerViewModel>(response), buyer);
+	}
+
+	[Test]
+	public async Task GetElement_ByPhoneNumber_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/buyers/+8-888-888-88-88");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task Post_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		var buyerModel = CreateBindingModel();
+		//Act
+		var response = await HttpClient.PostAsync($"/api/buyers", MakeContent(buyerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		AssertElement(CatHasPawsDbContext.GetBuyerFromDatabase(buyerModel.Id!), buyerModel);
+	}
+
+	[Test]
+	public async Task Post_WhenHaveRecordWithSameId_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var buyerModel = CreateBindingModel();
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(buyerModel.Id);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/buyers", MakeContent(buyerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenHaveRecordWithSamePhoneNumber_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var buyerModel = CreateBindingModel();
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(phoneNumber: buyerModel.PhoneNumber!);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/buyers", MakeContent(buyerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var buyerModelWithIdIncorrect = new BuyerBindingModel { Id = "Id", FIO = "fio", PhoneNumber = "+7-111-111-11-11", DiscountSize = 10 };
+		var buyerModelWithFioIncorrect = new BuyerBindingModel { Id = Guid.NewGuid().ToString(), FIO = string.Empty, PhoneNumber = "+7-111-111-11-11", DiscountSize = 10 };
+		var buyerModelWithPhoneNumberIncorrect = new BuyerBindingModel { Id = Guid.NewGuid().ToString(), FIO = "fio", PhoneNumber = "71", DiscountSize = 10 };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PostAsync($"/api/buyers", MakeContent(buyerModelWithIdIncorrect));
+		var responseWithFioIncorrect = await HttpClient.PostAsync($"/api/buyers", MakeContent(buyerModelWithFioIncorrect));
+		var responseWithPhoneNumberIncorrect = await HttpClient.PostAsync($"/api/buyers", MakeContent(buyerModelWithPhoneNumberIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Id is incorrect");
+			Assert.That(responseWithFioIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Fio is incorrect");
+			Assert.That(responseWithPhoneNumberIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "PhoneNumber is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Post_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/buyers", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/buyers", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_ShouldSuccess_Test()
+	{
+		//Arrange
+		var buyerModel = CreateBindingModel(fio: "new fio");
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(buyerModel.Id);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/buyers", MakeContent(buyerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		CatHasPawsDbContext.ChangeTracker.Clear();
+		AssertElement(CatHasPawsDbContext.GetBuyerFromDatabase(buyerModel.Id!), buyerModel);
+	}
+
+	[Test]
+	public async Task Put_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var buyerModel = CreateBindingModel(fio: "new fio");
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.PutAsync($"/api/buyers", MakeContent(buyerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenHaveRecordWithSamePhoneNumber_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var buyerModel = CreateBindingModel(fio: "new fio");
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(buyerModel.Id);
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(phoneNumber: buyerModel.PhoneNumber!);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/buyers", MakeContent(buyerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var buyerModelWithIdIncorrect = new BuyerBindingModel { Id = "Id", FIO = "fio", PhoneNumber = "+7-111-111-11-11", DiscountSize = 10 };
+		var buyerModelWithFioIncorrect = new BuyerBindingModel { Id = Guid.NewGuid().ToString(), FIO = string.Empty, PhoneNumber = "+7-111-111-11-11", DiscountSize = 10 };
+		var buyerModelWithPhoneNumberIncorrect = new BuyerBindingModel { Id = Guid.NewGuid().ToString(), FIO = "fio", PhoneNumber = "71", DiscountSize = 10 };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PutAsync($"/api/buyers", MakeContent(buyerModelWithIdIncorrect));
+		var responseWithFioIncorrect = await HttpClient.PutAsync($"/api/buyers", MakeContent(buyerModelWithFioIncorrect));
+		var responseWithPhoneNumberIncorrect = await HttpClient.PutAsync($"/api/buyers", MakeContent(buyerModelWithPhoneNumberIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Id is incorrect");
+			Assert.That(responseWithFioIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Fio is incorrect");
+			Assert.That(responseWithPhoneNumberIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "PhoneNumber is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Put_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PutAsync($"/api/buyers", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PutAsync($"/api/buyers", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_ShouldSuccess_Test()
+	{
+		//Arrange
+		var buyerId = Guid.NewGuid().ToString();
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(buyerId);
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/buyers/{buyerId}");
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+			Assert.That(CatHasPawsDbContext.GetBuyerFromDatabase(buyerId), Is.Null);
+		});
+	}
+
+	[Test]
+	public async Task Delete_WhenHaveSalesByThisBuyer_ShouldSuccess_Test()
+	{
+		//Arrange
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(worker.Id, buyer.Id);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(worker.Id, buyer.Id);
+		var salesBeforeDelete = CatHasPawsDbContext.GetSalesByBuyerId(buyer.Id);
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/buyers/{buyer.Id}");
+		//Assert
+		CatHasPawsDbContext.ChangeTracker.Clear();
+		var element = CatHasPawsDbContext.GetBuyerFromDatabase(buyer.Id);
+		var salesAfterDelete = CatHasPawsDbContext.GetSalesByBuyerId(buyer.Id);
+		var salesNoBuyers = CatHasPawsDbContext.GetSalesByBuyerId(null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+			Assert.That(element, Is.Null);
+			Assert.That(salesBeforeDelete, Has.Length.EqualTo(2));
+			Assert.That(salesAfterDelete, Is.Empty);
+			Assert.That(salesNoBuyers, Has.Length.EqualTo(2));
+		});
+	}
+
+	[Test]
+	public async Task Delete_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/buyers/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/buyers/id");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	private static void AssertElement(BuyerViewModel? actual, Buyer expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.FIO, Is.EqualTo(expected.FIO));
+			Assert.That(actual.PhoneNumber, Is.EqualTo(expected.PhoneNumber));
+			Assert.That(actual.DiscountSize, Is.EqualTo(expected.DiscountSize));
+		});
+	}
+
+	private static BuyerBindingModel CreateBindingModel(string? id = null, string fio = "fio", string phoneNumber = "+7-666-666-66-66", double discountSize = 10) =>
+		new()
+		{
+			Id = id ?? Guid.NewGuid().ToString(),
+			FIO = fio,
+			PhoneNumber = phoneNumber,
+			DiscountSize = discountSize
+		};
+
+	private static void AssertElement(Buyer? actual, BuyerBindingModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.FIO, Is.EqualTo(expected.FIO));
+			Assert.That(actual.PhoneNumber, Is.EqualTo(expected.PhoneNumber));
+			Assert.That(actual.DiscountSize, Is.EqualTo(expected.DiscountSize));
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/WebApiControllersTests/ManufacturerControllerTests.cs

@@ -0,0 +1,357 @@
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.ViewModels;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+using System.Net;
+
+namespace CatHasPawsTests.WebApiControllersTests;
+
+[TestFixture]
+internal class ManufacturerControllerTests : BaseWebApiControllerTest
+{
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemoveProductsFromDatabase();
+		CatHasPawsDbContext.RemoveManufacturersFromDatabase();
+	}
+
+	[Test]
+	public async Task GetList_WhenHaveRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: "name 1");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: "name 2");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: "name 3");
+		//Act
+		var response = await HttpClient.GetAsync("/api/manufacturers");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ManufacturerViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(3));
+		});
+		AssertElement(data.First(x => x.Id == manufacturer.Id), manufacturer);
+	}
+
+	[Test]
+	public async Task GetList_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync("/api/manufacturers");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ManufacturerViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(0));
+		});
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/manufacturers/{manufacturer.Id}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<ManufacturerViewModel>(response), manufacturer);
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/manufacturers/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ByName_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/manufacturers/{manufacturer.ManufacturerName}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<ManufacturerViewModel>(response), manufacturer);
+	}
+
+	[Test]
+	public async Task GetElement_ByName_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/manufacturers/New%20Name");
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ByOldName_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var oldName = "old name";
+		var manufacturer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(prevManufacturerName: oldName);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/manufacturers/{oldName}");
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<ManufacturerViewModel>(response), manufacturer);
+	}
+
+	[Test]
+	public async Task Post_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		var manufacturerModel = CreateModel();
+		//Act
+		var response = await HttpClient.PostAsync($"/api/manufacturers", MakeContent(manufacturerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		AssertElement(CatHasPawsDbContext.GetManufacturerFromDatabase(manufacturerModel.Id!), manufacturerModel);
+	}
+
+	[Test]
+	public async Task Post_WhenHaveRecordWithSameId_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var manufacturerModel = CreateModel();
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerModel.Id);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/manufacturers", MakeContent(manufacturerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenHaveRecordWithSameName_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var manufacturerModel = CreateModel(manufacturerName: "unique name");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: manufacturerModel.ManufacturerName!);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/manufacturers", MakeContent(manufacturerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var manufacturerModelWithIdIncorrect = new ManufacturerBindingModel { Id = "Id", ManufacturerName = "name" };
+		var manufacturerModelWithNameIncorrect = new ManufacturerBindingModel { Id = Guid.NewGuid().ToString(), ManufacturerName = string.Empty };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PostAsync($"/api/manufacturers", MakeContent(manufacturerModelWithIdIncorrect));
+		var responseWithNameIncorrect = await HttpClient.PostAsync($"/api/manufacturers", MakeContent(manufacturerModelWithNameIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Id is incorrect");
+			Assert.That(responseWithNameIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Name is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Post_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/manufacturers", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/manufacturers", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_ShouldSuccess_Test()
+	{
+		//Arrange
+		var manufacturerModel = CreateModel();
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerModel.Id);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/manufacturers", MakeContent(manufacturerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		CatHasPawsDbContext.ChangeTracker.Clear();
+		AssertElement(CatHasPawsDbContext.GetManufacturerFromDatabase(manufacturerModel.Id!), manufacturerModel);
+	}
+
+	[Test]
+	public async Task Put_CheckPrevNames_ShouldSuccess_Test()
+	{
+		//Arrange
+		var manufacturerModel1 = CreateModel(manufacturerName: "name 1");
+		var manufacturerModel2 = CreateModel(id: manufacturerModel1.Id, manufacturerName: "name 2");
+		var manufacturerModel3 = CreateModel(id: manufacturerModel1.Id, manufacturerName: "name 3");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerModel1.Id);
+		//Act
+		await HttpClient.PutAsync($"/api/manufacturers", MakeContent(manufacturerModel1));
+		await HttpClient.PutAsync($"/api/manufacturers", MakeContent(manufacturerModel2));
+		await HttpClient.PutAsync($"/api/manufacturers", MakeContent(manufacturerModel3));
+		//Assert
+		CatHasPawsDbContext.ChangeTracker.Clear();
+		var entityModel = CatHasPawsDbContext.GetManufacturerFromDatabase(manufacturerModel1.Id!);
+		Assert.That(entityModel, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(entityModel.ManufacturerName, Is.EqualTo(manufacturerModel3.ManufacturerName));
+			Assert.That(entityModel.PrevManufacturerName, Is.EqualTo(manufacturerModel2.ManufacturerName));
+			Assert.That(entityModel.PrevPrevManufacturerName, Is.EqualTo(manufacturerModel1.ManufacturerName));
+		});
+	}
+
+	[Test]
+	public async Task Put_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var manufacturerModel = CreateModel();
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.PutAsync($"/api/manufacturers", MakeContent(manufacturerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenHaveRecordWithSameName_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var manufacturerModel = CreateModel(manufacturerName: "unique name");
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerModel.Id);
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: manufacturerModel.ManufacturerName!);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/manufacturers", MakeContent(manufacturerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var manufacturerModelWithIdIncorrect = new ManufacturerBindingModel { Id = "Id", ManufacturerName = "name" };
+		var manufacturerModelWithNameIncorrect = new ManufacturerBindingModel { Id = Guid.NewGuid().ToString(), ManufacturerName = string.Empty };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PutAsync($"/api/manufacturers", MakeContent(manufacturerModelWithIdIncorrect));
+		var responseWithNameIncorrect = await HttpClient.PutAsync($"/api/manufacturers", MakeContent(manufacturerModelWithNameIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Id is incorrect");
+			Assert.That(responseWithNameIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Name is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Put_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PutAsync($"/api/manufacturers", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PutAsync($"/api/manufacturers", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_ShouldSuccess_Test()
+	{
+		//Arrange
+		var manufacturerId = Guid.NewGuid().ToString();
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerId);
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/manufacturers/{manufacturerId}");
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+			Assert.That(CatHasPawsDbContext.GetManufacturerFromDatabase(manufacturerId), Is.Null);
+		});
+	}
+
+	[Test]
+	public async Task Delete_WhenHaveProducts_ShouldSuccess_Test()
+	{
+		//Arrange
+		var manufacturerId = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn().Id;
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(manufacturerId);
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/manufacturers/{manufacturerId}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/manufacturers/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/manufacturers/id");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	private static void AssertElement(ManufacturerViewModel? actual, Manufacturer expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.ManufacturerName, Is.EqualTo(expected.ManufacturerName));
+			Assert.That(actual.PrevManufacturerName, Is.EqualTo(expected.PrevManufacturerName));
+			Assert.That(actual.PrevPrevManufacturerName, Is.EqualTo(expected.PrevPrevManufacturerName));
+		});
+	}
+
+	private static ManufacturerBindingModel CreateModel(string? id = null, string manufacturerName = "name")
+		=> new()
+		{
+			Id = id ?? Guid.NewGuid().ToString(),
+			ManufacturerName = manufacturerName
+		};
+
+	private static void AssertElement(Manufacturer? actual, ManufacturerBindingModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.ManufacturerName, Is.EqualTo(expected.ManufacturerName));
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/WebApiControllersTests/PostControllerTests.cs

@@ -0,0 +1,471 @@
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.ViewModels;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+using System.Net;
+
+namespace CatHasPawsTests.WebApiControllersTests;
+
+
+[TestFixture]
+internal class PostControllerTests : BaseWebApiControllerTest
+{
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemovePostsFromDatabase();
+	}
+
+	[Test]
+	public async Task GetRecords_WhenHaveRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: "name 1");
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: "name 2");
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: "name 3");
+		//Act
+		var response = await HttpClient.GetAsync("/api/posts");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<PostViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(3));
+		});
+		AssertElement(data.First(x => x.Id == post.PostId), post);
+	}
+
+	[Test]
+	public async Task GetRecords_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync("/api/posts");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ManufacturerViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(0));
+		});
+	}
+
+	[Test]
+	public async Task GetHistory_WhenHaveRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var postId = Guid.NewGuid().ToString();
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: "name 1", isActual: true);
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postId, "name 2", isActual: true);
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postId, "name 2", isActual: false);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/posthistory/{postId}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<PostViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(2));
+		});
+		AssertElement(data.First(x => x.Id == post.PostId), post);
+	}
+
+	[Test]
+	public async Task GetHistory_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var postId = Guid.NewGuid().ToString();
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: "name 1", isActual: true);
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postId, "name 2", isActual: true);
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postId, "name 2", isActual: false);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/posthistory/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<PostViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(0));
+		});
+	}
+
+	[Test]
+	public async Task GetHistory_WhenWrongData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/posthistory/id");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/posts/{post.PostId}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<PostViewModel>(response), post);
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/posts/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenRecordWasDeleted_ShouldNotFound_Test()
+	{
+		//Arrange
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(isActual: false);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/posts/{post.PostId}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ByName_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/posts/{post.PostName}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<PostViewModel>(response), post);
+	}
+
+	[Test]
+	public async Task GetElement_ByName_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/posts/New%20Name");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ByName_WhenRecordWasDeleted_ShouldNotFound_Test()
+	{
+		//Arrange
+		var post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(isActual: false);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/posts/{post.PostName}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task Post_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		var postModel = CreateModel();
+		//Act
+		var response = await HttpClient.PostAsync($"/api/posts", MakeContent(postModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		AssertElement(CatHasPawsDbContext.GetPostFromDatabaseByPostId(postModel.Id!), postModel);
+	}
+
+	[Test]
+	public async Task Post_WhenHaveRecordWithSameId_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var postModel = CreateModel();
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postModel.Id);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/posts", MakeContent(postModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenHaveRecordWithSameName_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var postModel = CreateModel(postName: "unique name");
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: postModel.PostName!);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/posts", MakeContent(postModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var postModelWithIdIncorrect = new PostBindingModel { Id = "Id", PostName = "name", PostType = PostType.Assistant.ToString(), Salary = 10 };
+		var postModelWithNameIncorrect = new PostBindingModel { Id = Guid.NewGuid().ToString(), PostName = string.Empty, PostType = PostType.Assistant.ToString(), Salary = 10 };
+		var postModelWithPostTypeIncorrect = new PostBindingModel { Id = Guid.NewGuid().ToString(), PostName = string.Empty, PostType = string.Empty, Salary = 10 };
+		var postModelWithSalaryIncorrect = new PostBindingModel { Id = Guid.NewGuid().ToString(), PostName = string.Empty, PostType = PostType.Assistant.ToString(), Salary = -10 };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PostAsync($"/api/posts", MakeContent(postModelWithIdIncorrect));
+		var responseWithNameIncorrect = await HttpClient.PostAsync($"/api/posts", MakeContent(postModelWithNameIncorrect));
+		var responseWithPostTypeIncorrect = await HttpClient.PostAsync($"/api/posts", MakeContent(postModelWithPostTypeIncorrect));
+		var responseWithSalaryIncorrect = await HttpClient.PostAsync($"/api/posts", MakeContent(postModelWithSalaryIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Id is incorrect");
+			Assert.That(responseWithNameIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Name is incorrect");
+			Assert.That(responseWithPostTypeIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Type is incorrect");
+			Assert.That(responseWithSalaryIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Salary is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Post_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/posts", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/posts", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_ShouldSuccess_Test()
+	{
+		//Arrange
+		var postModel = CreateModel();
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postModel.Id);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/posts", MakeContent(postModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		CatHasPawsDbContext.ChangeTracker.Clear();
+		AssertElement(CatHasPawsDbContext.GetPostFromDatabaseByPostId(postModel.Id!), postModel);
+	}
+
+	[Test]
+	public async Task Put_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var postModel = CreateModel();
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.PutAsync($"/api/posts", MakeContent(postModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenRecordWasDeleted_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var postModel = CreateModel();
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postModel.Id, isActual: false);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/posts", MakeContent(postModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenHaveRecordWithSameName_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var postModel = CreateModel(postName: "unique name");
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postModel.Id);
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn(postName: postModel.PostName!);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/posts", MakeContent(postModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var postModelWithIdIncorrect = new PostBindingModel { Id = "Id", PostName = "name", PostType = PostType.Assistant.ToString(), Salary = 10 };
+		var postModelWithNameIncorrect = new PostBindingModel { Id = Guid.NewGuid().ToString(), PostName = string.Empty, PostType = PostType.Assistant.ToString(), Salary = 10 };
+		var postModelWithPostTypeIncorrect = new PostBindingModel { Id = Guid.NewGuid().ToString(), PostName = string.Empty, PostType = string.Empty, Salary = 10 };
+		var postModelWithSalaryIncorrect = new PostBindingModel { Id = Guid.NewGuid().ToString(), PostName = string.Empty, PostType = PostType.Assistant.ToString(), Salary = -10 };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PutAsync($"/api/posts", MakeContent(postModelWithIdIncorrect));
+		var responseWithNameIncorrect = await HttpClient.PutAsync($"/api/posts", MakeContent(postModelWithNameIncorrect));
+		var responseWithPostTypeIncorrect = await HttpClient.PutAsync($"/api/posts", MakeContent(postModelWithPostTypeIncorrect));
+		var responseWithSalaryIncorrect = await HttpClient.PutAsync($"/api/posts", MakeContent(postModelWithSalaryIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Id is incorrect");
+			Assert.That(responseWithNameIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Name is incorrect");
+			Assert.That(responseWithPostTypeIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Type is incorrect");
+			Assert.That(responseWithSalaryIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Salary is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Put_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PutAsync($"/api/posts", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PutAsync($"/api/posts", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_ShouldSuccess_Test()
+	{
+		//Arrange
+		var postId = CatHasPawsDbContext.InsertPostToDatabaseAndReturn().PostId;
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/posts/{postId}");
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+			Assert.That(CatHasPawsDbContext.GetPostFromDatabaseByPostId(postId), Is.Null);
+		});
+	}
+
+	[Test]
+	public async Task Delete_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/posts/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenRecordWasDeleted_Test()
+	{
+		//Arrange
+		var postId = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(isActual: false).PostId;
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/posts/{postId}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/posts/id");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Patch_ShouldSuccess_Test()
+	{
+		//Arrange
+		var postId = CatHasPawsDbContext.InsertPostToDatabaseAndReturn(isActual: false).PostId;
+		//Act
+		var response = await HttpClient.PatchAsync($"/api/posts/{postId}", null);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+			Assert.That(CatHasPawsDbContext.GetPostFromDatabaseByPostId(postId), Is.Not.Null);
+		});
+	}
+
+	[Test]
+	public async Task Patch_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.PatchAsync($"/api/posts/{Guid.NewGuid()}", null);
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Patch_WhenRecordNotWasDeleted_ShouldSuccess_Test()
+	{
+		//Arrange
+		var postId = CatHasPawsDbContext.InsertPostToDatabaseAndReturn().PostId;
+		//Act
+		var response = await HttpClient.PatchAsync($"/api/posts/{postId}", null);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+			Assert.That(CatHasPawsDbContext.GetPostFromDatabaseByPostId(postId), Is.Not.Null);
+		});
+	}
+
+	[Test]
+	public async Task Patch_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PatchAsync($"/api/posts/id", null);
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	private static void AssertElement(PostViewModel? actual, Post expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.PostId));
+			Assert.That(actual.PostName, Is.EqualTo(expected.PostName));
+			Assert.That(actual.PostType, Is.EqualTo(expected.PostType.ToString()));
+			Assert.That(actual.Salary, Is.EqualTo(expected.Salary));
+		});
+	}
+
+	private static PostBindingModel CreateModel(string? postId = null, string postName = "name", PostType postType = PostType.Assistant, double salary = 10)
+		=> new()
+		{
+			Id = postId ?? Guid.NewGuid().ToString(),
+			PostName = postName,
+			PostType = postType.ToString(),
+			Salary = salary
+		};
+
+	private static void AssertElement(Post? actual, PostBindingModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.PostId, Is.EqualTo(expected.Id));
+			Assert.That(actual.PostName, Is.EqualTo(expected.PostName));
+			Assert.That(actual.PostType.ToString(), Is.EqualTo(expected.PostType));
+			Assert.That(actual.Salary, Is.EqualTo(expected.Salary));
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/WebApiControllersTests/ProductControllerTests.cs

@@ -0,0 +1,536 @@
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.ViewModels;
+using CatHasPawsDatabase;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+using System.Net;
+
+namespace CatHasPawsTests.WebApiControllersTests;
+
+[TestFixture]
+internal class ProductControllerTests : BaseWebApiControllerTest
+{
+	private string _manufacturerId;
+
+	[SetUp]
+	public void SetUp()
+	{
+		_manufacturerId = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn().Id;
+	}
+
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemoveProductsFromDatabase();
+		CatHasPawsDbContext.RemoveManufacturersFromDatabase();
+	}
+
+	[Test]
+	public async Task GetList_WhenHaveRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 1");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 2");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 3");
+		//Act
+		var response = await HttpClient.GetAsync("/api/products/getrecords?includeDeleted=false");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ProductViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(3));
+		});
+		AssertElement(data.First(x => x.Id == product.Id), product);
+	}
+
+	[Test]
+	public async Task GetList_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync("/api/products/getrecords?includeDeleted=false");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ProductViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(0));
+		});
+	}
+
+	[Test]
+	public async Task GetList_OnlyActual_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 1", isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 2", isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 3", isDeleted: false);
+		//Act
+		var response = await HttpClient.GetAsync("/api/products/getrecords?includeDeleted=false");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ProductViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(2));
+			Assert.That(data.All(x => !x.IsDeleted));
+		});
+	}
+
+	[Test]
+	public async Task GetList_IncludeNoActual_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 1", isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 2", isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 3", isDeleted: false);
+		//Act
+		var response = await HttpClient.GetAsync("/api/products/getrecords?includeDeleted=true");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ProductViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(3));
+			Assert.That(data.Any(x => x.IsDeleted));
+			Assert.That(data.Any(x => !x.IsDeleted));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByManufacturer_ShouldSuccess_Test()
+	{
+		//Arrange
+		var manufacruer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: "name 2");
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 1", isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 2", isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(manufacruer.Id, productName: "name 3", isDeleted: false);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/getmanufacturerrecords?id={_manufacturerId}&includeDeleted=true");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ProductViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(2));
+			Assert.That(data.All(x => x.ManufacturerId == _manufacturerId));
+		});
+		AssertElement(data.First(x => x.Id == product.Id), product);
+	}
+
+	[Test]
+	public async Task GetList_ByManufacturer_WhenOnlyActual_ShouldSuccess_Test()
+	{
+		//Arrange
+		var manufacruer = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn(manufacturerName: "name 2");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 1", isDeleted: true);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "name 2", isDeleted: false);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(manufacruer.Id, productName: "name 3", isDeleted: false);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/getmanufacturerrecords?id={_manufacturerId}&includeDeleted=false");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ProductViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(1));
+			Assert.That(data.All(x => x.ManufacturerId == _manufacturerId && !x.IsDeleted));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByManufacturer_WhenIdIsNotGuid_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/getmanufacturerrecords?id=id&includeDeleted=false");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetHistoryByProductId_WhenHaveRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId);
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 20, DateTime.UtcNow.AddDays(-1));
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 30, DateTime.UtcNow.AddMinutes(-10));
+		var history = CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 40, DateTime.UtcNow.AddDays(1));
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/gethistory?id={product.Id}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ProductHistoryViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.That(data, Has.Count.EqualTo(3));
+		AssertElement(data[0], history);
+	}
+
+	[Test]
+	public async Task GetHistoryByProductId_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId);
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 20, DateTime.UtcNow.AddDays(-1));
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 30, DateTime.UtcNow.AddMinutes(-10));
+		CatHasPawsDbContext.InsertProductHistoryToDatabaseAndReturn(product.Id, 40, DateTime.UtcNow.AddDays(1));
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/gethistory?id={Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<ProductViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.That(data, Has.Count.EqualTo(0));
+	}
+
+	[Test]
+	public async Task GetHistoryByProductId_WhenProductIdIsNotGuid_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/gethistory?id=id");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/getrecord/{product.Id}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<ProductViewModel>(response), product);
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/getrecord/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenRecordWasDeleted_ShouldNotFound_Test()
+	{
+		//Arrange
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, isDeleted: true);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/getrecord/{product.Id}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ByName_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/getrecord/{product.ProductName}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<ProductViewModel>(response), product);
+	}
+
+	[Test]
+	public async Task GetElement_ByName_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/getrecord/New%20Name");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ByName_WhenRecordWasDeleted_ShouldNotFound_Test()
+	{
+		//Arrange
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, isDeleted: true);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/products/getrecord/{product.ProductName}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task Post_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId);
+		var productModel = CreateModel(_manufacturerId);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/products/register", MakeContent(productModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		AssertElement(CatHasPawsDbContext.GetProductFromDatabaseById(productModel.Id!), productModel);
+	}
+
+	[Test]
+	public async Task Post_WhenHaveRecordWithSameId_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var productModel = CreateModel(_manufacturerId);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productModel.Id);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/products/register", MakeContent(productModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenHaveRecordWithSameName_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var productModel = CreateModel(_manufacturerId, productName: "unique name");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: productModel.ProductName!);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/products/register", MakeContent(productModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var productModelWithIdIncorrect = new ProductBindingModel { Id = "Id", ManufacturerId = _manufacturerId, ProductName = "name", Price = 100, ProductType = ProductType.Toy.ToString() };
+		var productModelWithNameIncorrect = new ProductBindingModel { Id = Guid.NewGuid().ToString(), ManufacturerId = _manufacturerId, ProductName = string.Empty, Price = 100, ProductType = ProductType.Toy.ToString() };
+		var productModelWithProductTypeIncorrect = new ProductBindingModel { Id = Guid.NewGuid().ToString(), ManufacturerId = _manufacturerId, ProductName = "name", Price = 100, ProductType = string.Empty };
+		var productModelWithPriceIncorrect = new ProductBindingModel { Id = Guid.NewGuid().ToString(), ManufacturerId = _manufacturerId, ProductName = "name", Price = 0, ProductType = ProductType.Toy.ToString() };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PostAsync($"/api/products/register", MakeContent(productModelWithIdIncorrect));
+		var responseWithNameIncorrect = await HttpClient.PostAsync($"/api/products/register", MakeContent(productModelWithNameIncorrect));
+		var responseWithProductTypeIncorrect = await HttpClient.PostAsync($"/api/products/register", MakeContent(productModelWithProductTypeIncorrect));
+		var responseWithPriceIncorrect = await HttpClient.PostAsync($"/api/products/register", MakeContent(productModelWithPriceIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Id is incorrect");
+			Assert.That(responseWithNameIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Name is incorrect");
+			Assert.That(responseWithProductTypeIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Name is incorrect");
+			Assert.That(responseWithPriceIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Name is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Post_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/products/register", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/products/register", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_ShouldSuccess_Test()
+	{
+		//Arrange
+		var productModel = CreateModel(_manufacturerId);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productModel.Id);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/products/changeinfo", MakeContent(productModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		CatHasPawsDbContext.ChangeTracker.Clear();
+		AssertElement(CatHasPawsDbContext.GetProductFromDatabaseById(productModel.Id!), productModel);
+	}
+
+	[Test]
+	public async Task Put_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var productModel = CreateModel(_manufacturerId);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/products/changeinfo", MakeContent(productModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenHaveRecordWithSameName_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var productModel = CreateModel(_manufacturerId, productName: "unique name");
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productModel.Id);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: productModel.ProductName!);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/products/changeinfo", MakeContent(productModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenRecordWasDeleted_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var productModel = CreateModel(_manufacturerId);
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productModel.Id, isDeleted: true);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/products/changeinfo", MakeContent(productModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var productModelWithIdIncorrect = new ProductBindingModel { Id = "Id", ManufacturerId = _manufacturerId, ProductName = "name", Price = 100, ProductType = ProductType.Toy.ToString() };
+		var productModelWithNameIncorrect = new ProductBindingModel { Id = Guid.NewGuid().ToString(), ManufacturerId = _manufacturerId, ProductName = string.Empty, Price = 100, ProductType = ProductType.Toy.ToString() };
+		var productModelWithProductTypeIncorrect = new ProductBindingModel { Id = Guid.NewGuid().ToString(), ManufacturerId = _manufacturerId, ProductName = "name", Price = 100, ProductType = string.Empty };
+		var productModelWithPriceIncorrect = new ProductBindingModel { Id = Guid.NewGuid().ToString(), ManufacturerId = _manufacturerId, ProductName = "name", Price = 0, ProductType = ProductType.Toy.ToString() };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PutAsync($"/api/products/changeinfo", MakeContent(productModelWithIdIncorrect));
+		var responseWithNameIncorrect = await HttpClient.PutAsync($"/api/products/changeinfo", MakeContent(productModelWithNameIncorrect));
+		var responseWithProductTypeIncorrect = await HttpClient.PutAsync($"/api/products/changeinfo", MakeContent(productModelWithProductTypeIncorrect));
+		var responseWithPriceIncorrect = await HttpClient.PutAsync($"/api/products/changeinfo", MakeContent(productModelWithPriceIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Id is incorrect");
+			Assert.That(responseWithNameIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Name is incorrect");
+			Assert.That(responseWithProductTypeIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Name is incorrect");
+			Assert.That(responseWithPriceIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Name is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Put_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PutAsync($"/api/products/changeinfo", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PutAsync($"/api/products/changeinfo", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_ShouldSuccess_Test()
+	{
+		//Arrange
+		var productId = Guid.NewGuid().ToString();
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productId);
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/products/delete/{productId}");
+		CatHasPawsDbContext.ChangeTracker.Clear();
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+			Assert.That(CatHasPawsDbContext.GetProductFromDatabaseById(productId)!.IsDeleted);
+		});
+	}
+
+	[Test]
+	public async Task Delete_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId);
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/products/delete/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenRecordWasDeleted_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var productId = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, isDeleted: true).Id;
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/products/delete/{productId}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/products/delete/id");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	private static void AssertElement(ProductViewModel? actual, Product expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.ManufacturerId, Is.EqualTo(expected.ManufacturerId));
+			Assert.That(actual.ProductName, Is.EqualTo(expected.ProductName));
+			Assert.That(actual.ProductType, Is.EqualTo(expected.ProductType.ToString()));
+			Assert.That(actual.Price, Is.EqualTo(expected.Price));
+			Assert.That(actual.IsDeleted, Is.EqualTo(expected.IsDeleted));
+			Assert.That(actual.ManufacturerName, Is.EqualTo(expected.Manufacturer!.ManufacturerName));
+		});
+	}
+
+	private static void AssertElement(ProductHistoryViewModel? actual, ProductHistory expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.ProductName, Is.EqualTo(expected.Product!.ProductName));
+			Assert.That(actual.OldPrice, Is.EqualTo(expected.OldPrice));
+			Assert.That(actual.ChangeDate.ToString(), Is.EqualTo(expected.ChangeDate.ToString()));
+		});
+	}
+
+	private static ProductBindingModel CreateModel(string manufacturerId, string? id = null, string productName = "name", ProductType productType = ProductType.Feed, double price = 1)
+		=> new()
+		{
+			Id = id ?? Guid.NewGuid().ToString(),
+			ManufacturerId = manufacturerId,
+			ProductName = productName,
+			ProductType = productType.ToString(),
+			Price = price
+		};
+
+	private static void AssertElement(Product? actual, ProductBindingModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.ManufacturerId, Is.EqualTo(expected.ManufacturerId));
+			Assert.That(actual.ProductName, Is.EqualTo(expected.ProductName));
+			Assert.That(actual.ProductType.ToString(), Is.EqualTo(expected.ProductType));
+			Assert.That(actual.Price, Is.EqualTo(expected.Price));
+			Assert.That(!actual.IsDeleted);
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/WebApiControllersTests/SaleControllerTests.cs

@@ -0,0 +1,507 @@
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.ViewModels;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+using System.Net;
+
+namespace CatHasPawsTests.WebApiControllersTests;
+
+[TestFixture]
+internal class SaleControllerTests : BaseWebApiControllerTest
+{
+	private string _buyerId;
+	private string _workerId;
+	private string _manufacturerId;
+	private string _productId;
+
+	[SetUp]
+	public void SetUp()
+	{
+		_buyerId = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn().Id;
+		_workerId = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn().Id;
+		_manufacturerId = CatHasPawsDbContext.InsertManufacturerToDatabaseAndReturn().Id;
+		_productId = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId).Id;
+	}
+
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemoveSalesFromDatabase();
+		CatHasPawsDbContext.RemoveWorkersFromDatabase();
+		CatHasPawsDbContext.RemoveBuyersFromDatabase();
+		CatHasPawsDbContext.RemoveProductsFromDatabase();
+		CatHasPawsDbContext.RemoveManufacturersFromDatabase();
+	}
+
+	[Test]
+	public async Task GetList_WhenHaveRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var sale = CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, buyerId: _buyerId, sum: 10, products: [(_productId, 10, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, products: [(_productId, 10, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, products: [(_productId, 10, 1.1)]);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getrecords?fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<SaleViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(3));
+		});
+		AssertElement(data.First(x => x.Sum == sale.Sum), sale);
+	}
+
+	[Test]
+	public async Task GetList_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getrecords?fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<SaleViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(0));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByPeriod_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, saleDate: DateTime.UtcNow.AddDays(-1).AddMinutes(-3), products: [(_productId, 1, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, saleDate: DateTime.UtcNow.AddDays(-1).AddMinutes(3), products: [(_productId, 1, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, null, saleDate: DateTime.UtcNow.AddDays(1).AddMinutes(-3), products: [(_productId, 1, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, null, saleDate: DateTime.UtcNow.AddDays(1).AddMinutes(3), products: [(_productId, 1, 1.1)]);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getrecords?fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<SaleViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(2));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByPeriod_WhenDateIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getrecords?fromDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetList_ByWorkerId_ShouldSuccess_Test()
+	{
+		//Arrange
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "Other worker");
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 1, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 1, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(worker.Id, null, products: [(_productId, 1, 1.1)]);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getworkerrecords?id={_workerId}&fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<SaleViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(2));
+			Assert.That(data.All(x => x.WorkerId == _workerId));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByWorkerId_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "Other worker");
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 1, 1.1)]);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getworkerrecords?id={worker.Id}&fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<SaleViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.That(data, Has.Count.EqualTo(0));
+	}
+
+	[Test]
+	public async Task GetList_ByWorkerId_WhenDateIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getworkerrecords?id={_workerId}&fromDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetList_ByWorkerId_WhenIdIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getworkerrecords?id=Id&fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetList_ByBuyerId_ShouldSuccess_Test()
+	{
+		//Arrange
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(fio: "Other fio", phoneNumber: "+8-888-888-88-88");
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 1, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 1, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, buyer.Id, products: [(_productId, 1, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, null, products: [(_productId, 1, 1.1)]);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getbuyerrecords?id={_buyerId}&fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<SaleViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(2));
+			Assert.That(data.All(x => x.BuyerId == _buyerId));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByBuyerId_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var buyer = CatHasPawsDbContext.InsertBuyerToDatabaseAndReturn(fio: "Other buyer", phoneNumber: "+8-888-888-88-88");
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 1, 1.1)]);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getbuyerrecords?id={buyer.Id}&fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<SaleViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.That(data, Has.Count.EqualTo(0));
+	}
+
+	[Test]
+	public async Task GetList_ByBuyerId_WhenDateIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getbuyerrecords?id={_buyerId}&fromDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetList_ByBuyerId_WhenIdIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getbuyerrecords?id=Id&fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetList_ByProductId_ShouldSuccess_Test()
+	{
+		//Arrange
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "Other name");
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 5, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 1, 1.1), (product.Id, 4, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, null, products: [(product.Id, 1, 1.1)]);
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, null, products: [(product.Id, 1, 1.1), (_productId, 1, 1.1)]);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getproductrecords?id={_productId}&fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<SaleViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(3));
+			Assert.That(data.All(x => x.Products.Any(y => y.ProductId == _productId)));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByProductId_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var product = CatHasPawsDbContext.InsertProductToDatabaseAndReturn(_manufacturerId, productName: "Other product");
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 1, 1.1)]);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getproductrecords?id={product.Id}&fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<SaleViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.That(data, Has.Count.EqualTo(0));
+	}
+
+	[Test]
+	public async Task GetList_ByProductId_WhenDateIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getproductrecords?id={_productId}&fromDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetList_ByProductId_WhenIdIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getproductrecords?id=Id&fromDate={DateTime.UtcNow.AddDays(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1):MM/dd/yyyy HH:mm:ss}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var sale = CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 5, 1.1)]);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getrecord/{sale.Id}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<SaleViewModel>(response), sale);
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 5, 1.1)]);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getrecord/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenRecordHasCanceled_ShouldSuccess_Test()
+	{
+		//Arrange
+		var sale = CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 1, 1.2)], isCancel: true);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getrecord/{sale.Id}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenIdIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/sales/getrecord/Id");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, null, products: [(_productId, 5, 1.1)]);
+		var saleModel = CreateModel(_workerId, _buyerId, _productId);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(saleModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		AssertElement(CatHasPawsDbContext.GetSalesByBuyerId(_buyerId)[0], saleModel);
+	}
+
+	[Test]
+	public async Task Post_WhenNoBuyer_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 5, 1.1)]);
+		var saleModel = CreateModel(_workerId, null, _productId);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(saleModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		AssertElement(CatHasPawsDbContext.GetSalesByBuyerId(null)[0], saleModel);
+	}
+
+	[Test]
+	public async Task Post_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var saleId = Guid.NewGuid().ToString();
+		var saleModelWithIdIncorrect = new SaleBindingModel { Id = "Id", WorkerId = _workerId, BuyerId = _buyerId, DiscountType = 1, Products = [new SaleProductBindingModel { SaleId = saleId, ProductId = _productId, Count = 10, Price = 1.1 }] };
+		var saleModelWithWorkerIdIncorrect = new SaleBindingModel { Id = saleId, WorkerId = "Id", BuyerId = _buyerId, DiscountType = 1, Products = [new SaleProductBindingModel { SaleId = saleId, ProductId = _productId, Count = 10, Price = 1.1 }] };
+		var saleModelWithBuyerIdIncorrect = new SaleBindingModel { Id = saleId, WorkerId = _workerId, BuyerId = "Id", DiscountType = 1, Products = [new SaleProductBindingModel { SaleId = saleId, ProductId = _productId, Count = 10, Price = 1.1 }] };
+		var saleModelWithProductsIncorrect = new SaleBindingModel { Id = saleId, WorkerId = _workerId, BuyerId = _buyerId, DiscountType = 1, Products = null };
+		var saleModelWithProductIdIncorrect = new SaleBindingModel { Id = saleId, WorkerId = _workerId, BuyerId = _buyerId, DiscountType = 1, Products = [new SaleProductBindingModel { SaleId = saleId, ProductId = "Id", Count = 10, Price = 1.1 }] };
+		var saleModelWithCountIncorrect = new SaleBindingModel { Id = saleId, WorkerId = _workerId, BuyerId = _buyerId, DiscountType = 1, Products = [new SaleProductBindingModel { SaleId = saleId, ProductId = _productId, Count = -10, Price = 1.1 }] };
+		var saleModelWithPriceIncorrect = new SaleBindingModel { Id = saleId, WorkerId = _workerId, BuyerId = _buyerId, DiscountType = 1, Products = [new SaleProductBindingModel { SaleId = saleId, ProductId = _productId, Count = 10, Price = -1.1 }] };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(saleModelWithIdIncorrect));
+		var responseWithWorkerIdIncorrect = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(saleModelWithWorkerIdIncorrect));
+		var responseWithBuyerIdIncorrect = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(saleModelWithBuyerIdIncorrect));
+		var responseWithProductsIncorrect = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(saleModelWithProductsIncorrect));
+		var responseWithProductIdIncorrect = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(saleModelWithProductIdIncorrect));
+		var responseWithCountIncorrect = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(saleModelWithCountIncorrect));
+		var responseWithPriceIncorrect = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(saleModelWithPriceIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "WorkerId is incorrect");
+			Assert.That(responseWithWorkerIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "WorkerId is incorrect");
+			Assert.That(responseWithBuyerIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "BuyerId is incorrect");
+			Assert.That(responseWithProductsIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Products is incorrect");
+			Assert.That(responseWithProductIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "ProductId is incorrect");
+			Assert.That(responseWithCountIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Count is incorrect");
+			Assert.That(responseWithPriceIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Price is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Post_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/sales/sale", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_ShouldSuccess_Test()
+	{
+		//Arrange
+		var sale = CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 5, 1.1)]);
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/sales/cancel/{sale.Id}");
+		CatHasPawsDbContext.ChangeTracker.Clear();
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+			Assert.That(CatHasPawsDbContext.GetSaleFromDatabaseById(sale.Id)!.IsCancel);
+		});
+	}
+
+	[Test]
+	public async Task Delete_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 5, 1.1)]);
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/sales/cancel/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenIsCanceled_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var sale = CatHasPawsDbContext.InsertSaleToDatabaseAndReturn(_workerId, _buyerId, products: [(_productId, 5, 1.1)], isCancel: true);
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/sales/cancel/{sale.Id}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/sales/cancel/id");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	private static void AssertElement(SaleViewModel? actual, Sale expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.WorkerFIO, Is.EqualTo(expected.Worker!.FIO));
+			Assert.That(actual.BuyerFIO, Is.EqualTo(expected.Buyer?.FIO));
+			Assert.That(actual.DiscountType, Is.EqualTo(expected.DiscountType.ToString()));
+			Assert.That(actual.Discount, Is.EqualTo(expected.Discount));
+			Assert.That(actual.IsCancel, Is.EqualTo(expected.IsCancel));
+		});
+
+		if (expected.SaleProducts is not null)
+		{
+			Assert.That(actual.Products, Is.Not.Null);
+			Assert.That(actual.Products, Has.Count.EqualTo(expected.SaleProducts.Count));
+			for (int i = 0; i < actual.Products.Count; ++i)
+			{
+				Assert.Multiple(() =>
+				{
+					Assert.That(actual.Products[i].ProductName, Is.EqualTo(expected.SaleProducts[i].Product!.ProductName));
+					Assert.That(actual.Products[i].Count, Is.EqualTo(expected.SaleProducts[i].Count));
+				});
+			}
+		}
+		else
+		{
+			Assert.That(actual.Products, Is.Null);
+		}
+	}
+
+	private static SaleBindingModel CreateModel(string workerId, string? buyerId, string productId, string? id = null, DiscountType discountType = DiscountType.OnSale, int count = 1, double price = 1.1)
+	{
+		var saleId = id ?? Guid.NewGuid().ToString();
+		return new()
+		{
+			Id = saleId,
+			WorkerId = workerId,
+			BuyerId = buyerId,
+			DiscountType = (int)discountType,
+			Products = [new SaleProductBindingModel { SaleId = saleId, ProductId = productId, Count = count, Price = price }]
+		};
+	}
+
+	private static void AssertElement(Sale? actual, SaleBindingModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.WorkerId, Is.EqualTo(expected.WorkerId));
+			Assert.That(actual.BuyerId, Is.EqualTo(expected.BuyerId));
+			Assert.That((int)actual.DiscountType, Is.EqualTo(expected.DiscountType));
+			Assert.That(!actual.IsCancel);
+		});
+
+		if (expected.Products is not null)
+		{
+			Assert.That(actual.SaleProducts, Is.Not.Null);
+			Assert.That(actual.SaleProducts, Has.Count.EqualTo(expected.Products.Count));
+			for (int i = 0; i < actual.SaleProducts.Count; ++i)
+			{
+				Assert.Multiple(() =>
+				{
+					Assert.That(actual.SaleProducts[i].ProductId, Is.EqualTo(expected.Products[i].ProductId));
+					Assert.That(actual.SaleProducts[i].Count, Is.EqualTo(expected.Products[i].Count));
+					Assert.That(actual.SaleProducts[i].Price, Is.EqualTo(expected.Products[i].Price));
+				});
+			}
+		}
+		else
+		{
+			Assert.That(actual.SaleProducts, Is.Null);
+		}
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/WebApiControllersTests/WorkerControllerTests.cs

@@ -0,0 +1,508 @@
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.ViewModels;
+using CatHasPawsDatabase.Models;
+using CatHasPawsTests.Infrastructure;
+using System.Net;
+
+namespace CatHasPawsTests.WebApiControllersTests;
+
+[TestFixture]
+internal class WorkerControllerTests : BaseWebApiControllerTest
+{
+	private Post _post;
+
+	[SetUp]
+	public void SetUp()
+	{
+		_post = CatHasPawsDbContext.InsertPostToDatabaseAndReturn();
+	}
+
+	[TearDown]
+	public void TearDown()
+	{
+		CatHasPawsDbContext.RemovePostsFromDatabase();
+		CatHasPawsDbContext.RemoveWorkersFromDatabase();
+	}
+
+	[Test]
+	public async Task GetList_WhenHaveRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", postId: _post.PostId)
+			.AddPost(_post);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2", postId: _post.PostId);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3", postId: _post.PostId);
+		//Act
+		var response = await HttpClient.GetAsync("/api/workers/getrecords");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<WorkerViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(3));
+		});
+		AssertElement(data.First(x => x.Id == worker.Id), worker);
+	}
+
+	[Test]
+	public async Task GetList_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync("/api/workers/getrecords");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<WorkerViewModel>>(response);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Is.Not.Null);
+			Assert.That(data, Has.Count.EqualTo(0));
+		});
+	}
+
+	[Test]
+	public async Task GetList_OnlyActual_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", postId: _post.PostId, isDeleted: true);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2", postId: _post.PostId, isDeleted: false);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3", postId: _post.PostId, isDeleted: false);
+		//Act
+		var response = await HttpClient.GetAsync("/api/workers/getrecords?includeDeleted=false");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<WorkerViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(2));
+			Assert.That(data.All(x => !x.IsDeleted));
+		});
+	}
+
+	[Test]
+	public async Task GetList_IncludeNoActual_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", postId: _post.PostId, isDeleted: true);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2", postId: _post.PostId, isDeleted: true);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3", postId: _post.PostId, isDeleted: false);
+		//Act
+		var response = await HttpClient.GetAsync("/api/workers/getrecords?includeDeleted=true");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<WorkerViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(3));
+			Assert.That(data.Any(x => x.IsDeleted));
+			Assert.That(data.Any(x => !x.IsDeleted));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByPostId_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", postId: _post.PostId);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2", postId: _post.PostId);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3", postId: _post.PostId, isDeleted: true);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 4");
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getpostrecords?id={_post.PostId}&includeDeleted=true");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<WorkerViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(3));
+			Assert.That(data.All(x => x.PostId == _post.PostId));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByPostId_WhenNoRecords_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", postId: _post.PostId);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 4");
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getpostrecords?id={Guid.NewGuid()}&includeDeleted=true");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<WorkerViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.That(data, Has.Count.EqualTo(0));
+	}
+
+	[Test]
+	public async Task GetList_ByPostId_WhenIdIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getpostrecords?id=id&includeDeleted=true");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetList_ByBirthDate_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", birthDate: DateTime.UtcNow.AddYears(-25));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2", birthDate: DateTime.UtcNow.AddYears(-21));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3", birthDate: DateTime.UtcNow.AddYears(-20), isDeleted: true);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 4", birthDate: DateTime.UtcNow.AddYears(-19));
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getbirthdaterecords?fromDate={DateTime.UtcNow.AddYears(-21).AddMinutes(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddYears(-20).AddMinutes(1):MM/dd/yyyy HH:mm:ss}&includeDeleted=true");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<WorkerViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(2));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByBirthDate_WhenDateIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getbirthdaterecords?fromDate={DateTime.UtcNow.AddMinutes(1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddMinutes(-1):MM/dd/yyyy HH:mm:ss}&includeDeleted=true");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetList_ByEmploymentDate_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 1", employmentDate: DateTime.UtcNow.AddDays(-2));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 2", employmentDate: DateTime.UtcNow.AddDays(-1));
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 3", employmentDate: DateTime.UtcNow.AddDays(1), isDeleted: true);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(fio: "fio 4", employmentDate: DateTime.UtcNow.AddDays(2));
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getemploymentrecords?fromDate={DateTime.UtcNow.AddDays(-1).AddMinutes(-1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddDays(1).AddMinutes(1):MM/dd/yyyy HH:mm:ss}&includeDeleted=true");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		var data = await GetModelFromResponseAsync<List<WorkerViewModel>>(response);
+		Assert.That(data, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(data, Has.Count.EqualTo(2));
+		});
+	}
+
+	[Test]
+	public async Task GetList_ByEmploymentDate_WhenDateIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getemploymentrecords?fromDate={DateTime.UtcNow.AddMinutes(1):MM/dd/yyyy HH:mm:ss}&toDate={DateTime.UtcNow.AddMinutes(-1):MM/dd/yyyy HH:mm:ss}&includeDeleted=true");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(postId: _post.PostId).AddPost(_post);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getrecord/{worker.Id}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<WorkerViewModel>(response), worker);
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getrecord/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ById_WhenRecordWasDeleted_ShouldNotFound_Test()
+	{
+		//Arrange
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(postId: _post.PostId, isDeleted: true);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getrecord/{worker.Id}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ByFIO_WhenHaveRecord_ShouldSuccess_Test()
+	{
+		//Arrange
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(postId: _post.PostId).AddPost(_post);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getrecord/{worker.FIO}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+		AssertElement(await GetModelFromResponseAsync<WorkerViewModel>(response), worker);
+	}
+
+	[Test]
+	public async Task GetElement_ByFIO_WhenNoRecord_ShouldNotFound_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getrecord/New%20Fio");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task GetElement_ByFIO_WhenRecordWasDeleted_ShouldNotFound_Test()
+	{
+		//Arrange
+		var worker = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(postId: _post.PostId, isDeleted: true);
+		//Act
+		var response = await HttpClient.GetAsync($"/api/workers/getrecord/{worker.FIO}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NotFound));
+	}
+
+	[Test]
+	public async Task Post_ShouldSuccess_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+		var workerModel = CreateModel(_post.Id);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/workers/register", MakeContent(workerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		AssertElement(CatHasPawsDbContext.GetWorkerFromDatabaseById(workerModel.Id!), workerModel);
+	}
+
+	[Test]
+	public async Task Post_WhenHaveRecordWithSameId_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var workerModel = CreateModel(_post.Id);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(workerModel.Id);
+		//Act
+		var response = await HttpClient.PostAsync($"/api/workers/register", MakeContent(workerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var workerModelWithIdIncorrect = new WorkerBindingModel { Id = "Id", FIO = "fio", BirthDate = DateTime.UtcNow.AddYears(-22), EmploymentDate = DateTime.UtcNow.AddDays(-5), PostId = _post.Id };
+		var workerModelWithFioIncorrect = new WorkerBindingModel { Id = Guid.NewGuid().ToString(), FIO = string.Empty, BirthDate = DateTime.UtcNow.AddYears(-22), EmploymentDate = DateTime.UtcNow.AddDays(-5), PostId = _post.Id };
+		var workerModelWithPostIdIncorrect = new WorkerBindingModel { Id = Guid.NewGuid().ToString(), FIO = "fio", BirthDate = DateTime.UtcNow.AddYears(-22), EmploymentDate = DateTime.UtcNow.AddDays(-5), PostId = "Id" };
+		var workerModelWithBirthDateIncorrect = new WorkerBindingModel { Id = Guid.NewGuid().ToString(), FIO = "fio", BirthDate = DateTime.UtcNow.AddYears(-15), EmploymentDate = DateTime.UtcNow.AddDays(-5), PostId = _post.Id };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PostAsync($"/api/workers/register", MakeContent(workerModelWithIdIncorrect));
+		var responseWithFioIncorrect = await HttpClient.PostAsync($"/api/workers/register", MakeContent(workerModelWithFioIncorrect));
+		var responseWithPostIdIncorrect = await HttpClient.PostAsync($"/api/workers/register", MakeContent(workerModelWithPostIdIncorrect));
+		var responseWithBirthDateIncorrect = await HttpClient.PostAsync($"/api/workers/register", MakeContent(workerModelWithBirthDateIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Id is incorrect");
+			Assert.That(responseWithFioIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Fio is incorrect");
+			Assert.That(responseWithPostIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "PostId is incorrect");
+			Assert.That(responseWithBirthDateIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "BirthDate is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Post_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/workers/register", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Post_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PostAsync($"/api/workers/register", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_ShouldSuccess_Test()
+	{
+		//Arrange
+		var workerModel = CreateModel(_post.Id);
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(workerModel.Id);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/workers/changeinfo", MakeContent(workerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+		CatHasPawsDbContext.ChangeTracker.Clear();
+		AssertElement(CatHasPawsDbContext.GetWorkerFromDatabaseById(workerModel.Id!), workerModel);
+	}
+
+	[Test]
+	public async Task Put_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var workerModel = CreateModel(_post.Id, fio: "new fio");
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.PutAsync($"/api/workers/changeinfo", MakeContent(workerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenRecordWasDeleted_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var workerModel = CreateModel(_post.Id, fio: "new fio");
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(workerModel.Id, isDeleted: true);
+		//Act
+		var response = await HttpClient.PutAsync($"/api/workers/changeinfo", MakeContent(workerModel));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenDataIsIncorrect_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var workerModelWithIdIncorrect = new WorkerBindingModel { Id = "Id", FIO = "fio", BirthDate = DateTime.UtcNow.AddYears(-22), EmploymentDate = DateTime.UtcNow.AddDays(-5), PostId = _post.Id };
+		var workerModelWithFioIncorrect = new WorkerBindingModel { Id = Guid.NewGuid().ToString(), FIO = string.Empty, BirthDate = DateTime.UtcNow.AddYears(-22), EmploymentDate = DateTime.UtcNow.AddDays(-5), PostId = _post.Id };
+		var workerModelWithPostIdIncorrect = new WorkerBindingModel { Id = Guid.NewGuid().ToString(), FIO = "fio", BirthDate = DateTime.UtcNow.AddYears(-22), EmploymentDate = DateTime.UtcNow.AddDays(-5), PostId = "Id" };
+		var workerModelWithBirthDateIncorrect = new WorkerBindingModel { Id = Guid.NewGuid().ToString(), FIO = "fio", BirthDate = DateTime.UtcNow.AddYears(-15), EmploymentDate = DateTime.UtcNow.AddDays(-5), PostId = _post.Id };
+		//Act
+		var responseWithIdIncorrect = await HttpClient.PutAsync($"/api/workers/changeinfo", MakeContent(workerModelWithIdIncorrect));
+		var responseWithFioIncorrect = await HttpClient.PutAsync($"/api/workers/changeinfo", MakeContent(workerModelWithFioIncorrect));
+		var responseWithPostIdIncorrect = await HttpClient.PutAsync($"/api/workers/changeinfo", MakeContent(workerModelWithPostIdIncorrect));
+		var responseWithBirthDateIncorrect = await HttpClient.PutAsync($"/api/workers/changeinfo", MakeContent(workerModelWithBirthDateIncorrect));
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(responseWithIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Id is incorrect");
+			Assert.That(responseWithFioIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "Fio is incorrect");
+			Assert.That(responseWithPostIdIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "PostId is incorrect");
+			Assert.That(responseWithBirthDateIncorrect.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest), "BirthDate is incorrect");
+		});
+	}
+
+	[Test]
+	public async Task Put_WhenSendEmptyData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PutAsync($"/api/workers/changeinfo", MakeContent(string.Empty));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Put_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.PutAsync($"/api/workers/changeinfo", MakeContent(new { Data = "test", Position = 10 }));
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_ShouldSuccess_Test()
+	{
+		//Arrange
+		var workerId = Guid.NewGuid().ToString();
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(workerId);
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/workers/delete/{workerId}");
+		CatHasPawsDbContext.ChangeTracker.Clear();
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.NoContent));
+			Assert.That(CatHasPawsDbContext.GetWorkerFromDatabaseById(workerId)!.IsDeleted);
+		});
+	}
+
+	[Test]
+	public async Task Delete_WhenNoFoundRecord_ShouldBadRequest_Test()
+	{
+		//Arrange
+		CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn();
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/workers/delete/{Guid.NewGuid()}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenSendWrongFormatData_ShouldBadRequest_Test()
+	{
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/workers/delete/id");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	[Test]
+	public async Task Delete_WhenRecordWasDeleted_ShouldBadRequest_Test()
+	{
+		//Arrange
+		var workerId = CatHasPawsDbContext.InsertWorkerToDatabaseAndReturn(isDeleted: true).Id;
+		//Act
+		var response = await HttpClient.DeleteAsync($"/api/workers/delete/{workerId}");
+		//Assert
+		Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.BadRequest));
+	}
+
+	private static void AssertElement(WorkerViewModel? actual, Worker expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.PostId, Is.EqualTo(expected.PostId));
+			Assert.That(actual.PostName, Is.EqualTo(expected.Post!.PostName));
+			Assert.That(actual.FIO, Is.EqualTo(expected.FIO));
+			Assert.That(actual.BirthDate.ToString(), Is.EqualTo(expected.BirthDate.ToString()));
+			Assert.That(actual.EmploymentDate.ToString(), Is.EqualTo(expected.EmploymentDate.ToString()));
+			Assert.That(actual.IsDeleted, Is.EqualTo(expected.IsDeleted));
+		});
+	}
+
+	private static WorkerBindingModel CreateModel(string postId, string? id = null, string fio = "fio", DateTime? birthDate = null, DateTime? employmentDate = null)
+	{
+		return new()
+		{
+			Id = id ?? Guid.NewGuid().ToString(),
+			FIO = fio,
+			BirthDate = birthDate ?? DateTime.UtcNow.AddYears(-22),
+			EmploymentDate = employmentDate ?? DateTime.UtcNow.AddDays(-5),
+			PostId = postId
+		};
+	}
+
+	private static void AssertElement(Worker? actual, WorkerBindingModel expected)
+	{
+		Assert.That(actual, Is.Not.Null);
+		Assert.Multiple(() =>
+		{
+			Assert.That(actual.Id, Is.EqualTo(expected.Id));
+			Assert.That(actual.PostId, Is.EqualTo(expected.PostId));
+			Assert.That(actual.FIO, Is.EqualTo(expected.FIO));
+			Assert.That(actual.BirthDate.ToString(), Is.EqualTo(expected.BirthDate.ToString()));
+			Assert.That(actual.EmploymentDate.ToString(), Is.EqualTo(expected.EmploymentDate.ToString()));
+			Assert.That(!actual.IsDeleted);
+		});
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/appsettings.json

@@ -0,0 +1,24 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "Serilog": {
+    "Using": [ "Serilog.Sinks.File" ],
+    "MinimumLevel": {
+      "Default": "Information"
+    },
+    "WriteTo": [
+      {
+        "Name": "File",
+        "Args": {
+          "path": "../logs/cathaspaws-.log",
+          "rollingInterval": "Day",
+          "outputTemplate": "{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} {CorrelationId} {Level:u3} {Username} {Message:lj}{Exception}{NewLine}"
+        }
+      }
+    ]
+  }
+}

TheCatHasPawsProject/CatHasPawsWebApi/Adapters/BuyerAdapter.cs

@@ -0,0 +1,189 @@
+using AutoMapper;
+using CatHasPawsContratcs.AdapterContracts;
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsWebApi.Adapters;
+
+public class BuyerAdapter : IBuyerAdapter
+{
+	private readonly IBuyerBusinessLogicContract _buyerBusinessLogicContract;
+
+	private readonly ILogger _logger;
+
+	private readonly Mapper _mapper;
+
+	public BuyerAdapter(IBuyerBusinessLogicContract buyerBusinessLogicContract, ILogger<BuyerAdapter> logger)
+	{
+		_buyerBusinessLogicContract = buyerBusinessLogicContract;
+		_logger = logger;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<BuyerBindingModel, BuyerDataModel>();
+			cfg.CreateMap<BuyerDataModel, BuyerViewModel>();
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public BuyerOperationResponse GetList()
+	{
+		try
+		{
+			return BuyerOperationResponse.OK([.. _buyerBusinessLogicContract.GetAllBuyers().Select(x => _mapper.Map<BuyerViewModel>(x))]);
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return BuyerOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return BuyerOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return BuyerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public BuyerOperationResponse GetElement(string data)
+	{
+		try
+		{
+			return BuyerOperationResponse.OK(_mapper.Map<BuyerViewModel>(_buyerBusinessLogicContract.GetBuyerByData(data)));
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return BuyerOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return BuyerOperationResponse.NotFound($"Not found element by data {data}");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return BuyerOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return BuyerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public BuyerOperationResponse RegisterBuyer(BuyerBindingModel buyerModel)
+	{
+		try
+		{
+			_buyerBusinessLogicContract.InsertBuyer(_mapper.Map<BuyerDataModel>(buyerModel));
+			return BuyerOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return BuyerOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return BuyerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementExistsException ex)
+		{
+			_logger.LogError(ex, "ElementExistsException");
+			return BuyerOperationResponse.BadRequest(ex.Message);
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return BuyerOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return BuyerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public BuyerOperationResponse ChangeBuyerInfo(BuyerBindingModel buyerModel)
+	{
+		try
+		{
+			_buyerBusinessLogicContract.UpdateBuyer(_mapper.Map<BuyerDataModel>(buyerModel));
+			return BuyerOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return BuyerOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return BuyerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return BuyerOperationResponse.BadRequest($"Not found element by Id {buyerModel.Id}");
+		}
+		catch (ElementExistsException ex)
+		{
+			_logger.LogError(ex, "ElementExistsException");
+			return BuyerOperationResponse.BadRequest(ex.Message);
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return BuyerOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return BuyerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public BuyerOperationResponse RemoveBuyer(string id)
+	{
+		try
+		{
+			_buyerBusinessLogicContract.DeleteBuyer(id);
+			return BuyerOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return BuyerOperationResponse.BadRequest("Id is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return BuyerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return BuyerOperationResponse.BadRequest($"Not found element by id: {id}");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return BuyerOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return BuyerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+}

TheCatHasPawsProject/CatHasPawsWebApi/Adapters/ManufacturerAdapter.cs

@@ -0,0 +1,189 @@
+using AutoMapper;
+using CatHasPawsContratcs.AdapterContracts;
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsWebApi.Adapters;
+
+public class ManufacturerAdapter : IManufacturerAdapter
+{
+	private readonly IManufacturerBusinessLogicContract _manufacturerBusinessLogicContract;
+
+	private readonly ILogger _logger;
+
+	private readonly Mapper _mapper;
+
+	public ManufacturerAdapter(IManufacturerBusinessLogicContract manufacturerBusinessLogicContract, ILogger<ManufacturerAdapter> logger)
+	{
+		_manufacturerBusinessLogicContract = manufacturerBusinessLogicContract;
+		_logger = logger;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<ManufacturerBindingModel, ManufacturerDataModel>();
+			cfg.CreateMap<ManufacturerDataModel, ManufacturerViewModel>();
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public ManufacturerOperationResponse GetList()
+	{
+		try
+		{
+			return ManufacturerOperationResponse.OK([.. _manufacturerBusinessLogicContract.GetAllManufacturers().Select(x => _mapper.Map<ManufacturerViewModel>(x))]);
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return ManufacturerOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ManufacturerOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ManufacturerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public ManufacturerOperationResponse GetElement(string data)
+	{
+		try
+		{
+			return ManufacturerOperationResponse.OK(_mapper.Map<ManufacturerViewModel>(_manufacturerBusinessLogicContract.GetManufacturerByData(data)));
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return ManufacturerOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return ManufacturerOperationResponse.NotFound($"Not found element by data {data}");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ManufacturerOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ManufacturerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public ManufacturerOperationResponse RegisterManufacturer(ManufacturerBindingModel manufacturerModel)
+	{
+		try
+		{
+			_manufacturerBusinessLogicContract.InsertManufacturer(_mapper.Map<ManufacturerDataModel>(manufacturerModel));
+			return ManufacturerOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return ManufacturerOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return ManufacturerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementExistsException ex)
+		{
+			_logger.LogError(ex, "ElementExistsException");
+			return ManufacturerOperationResponse.BadRequest(ex.Message);
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ManufacturerOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ManufacturerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public ManufacturerOperationResponse ChangeManufacturerInfo(ManufacturerBindingModel manufacturerModel)
+	{
+		try
+		{
+			_manufacturerBusinessLogicContract.UpdateManufacturer(_mapper.Map<ManufacturerDataModel>(manufacturerModel));
+			return ManufacturerOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return ManufacturerOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return ManufacturerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return ManufacturerOperationResponse.BadRequest($"Not found element by Id {manufacturerModel.Id}");
+		}
+		catch (ElementExistsException ex)
+		{
+			_logger.LogError(ex, "ElementExistsException");
+			return ManufacturerOperationResponse.BadRequest(ex.Message);
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ManufacturerOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ManufacturerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public ManufacturerOperationResponse RemoveManufacturer(string id)
+	{
+		try
+		{
+			_manufacturerBusinessLogicContract.DeleteManufacturer(id);
+			return ManufacturerOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return ManufacturerOperationResponse.BadRequest("Id is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return ManufacturerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return ManufacturerOperationResponse.BadRequest($"Not found element by id: {id}");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ManufacturerOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ManufacturerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+}

TheCatHasPawsProject/CatHasPawsWebApi/Adapters/PostAdapter.cs

@@ -0,0 +1,266 @@
+using AutoMapper;
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.AdapterContracts;
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsWebApi.Adapters;
+
+public class PostAdapter : IPostAdapter
+{
+	private readonly IPostBusinessLogicContract _postBusinessLogicContract;
+
+	private readonly ILogger _logger;
+
+	private readonly Mapper _mapper;
+
+	public PostAdapter(IPostBusinessLogicContract postBusinessLogicContract, ILogger<PostAdapter> logger)
+	{
+		_postBusinessLogicContract = postBusinessLogicContract;
+		_logger = logger;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<PostBindingModel, PostDataModel>();
+			cfg.CreateMap<PostDataModel, PostViewModel>();
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public PostOperationResponse GetList()
+	{
+		try
+		{
+			return PostOperationResponse.OK([.. _postBusinessLogicContract.GetAllPosts().Select(x => _mapper.Map<PostViewModel>(x))]);
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return PostOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return PostOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return PostOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public PostOperationResponse GetHistory(string id)
+	{
+		try
+		{
+			return PostOperationResponse.OK([.. _postBusinessLogicContract.GetAllDataOfPost(id).Select(x => _mapper.Map<PostViewModel>(x))]);
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return PostOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return PostOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return PostOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return PostOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public PostOperationResponse GetElement(string data)
+	{
+		try
+		{
+			return PostOperationResponse.OK(_mapper.Map<PostViewModel>(_postBusinessLogicContract.GetPostByData(data)));
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return PostOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return PostOperationResponse.NotFound($"Not found element by data {data}");
+		}
+		catch (ElementDeletedException ex)
+		{
+			_logger.LogError(ex, "ElementDeletedException");
+			return PostOperationResponse.BadRequest($"Element by data: {data} was deleted");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return PostOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return PostOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public PostOperationResponse RegisterPost(PostBindingModel postModel)
+	{
+		try
+		{
+			_postBusinessLogicContract.InsertPost(_mapper.Map<PostDataModel>(postModel));
+			return PostOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return PostOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return PostOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementExistsException ex)
+		{
+			_logger.LogError(ex, "ElementExistsException");
+			return PostOperationResponse.BadRequest(ex.Message);
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return PostOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return PostOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public PostOperationResponse ChangePostInfo(PostBindingModel postModel)
+	{
+		try
+		{
+			_postBusinessLogicContract.UpdatePost(_mapper.Map<PostDataModel>(postModel));
+			return PostOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return PostOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return PostOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return PostOperationResponse.BadRequest($"Not found element by Id {postModel.Id}");
+		}
+		catch (ElementExistsException ex)
+		{
+			_logger.LogError(ex, "ElementExistsException");
+			return PostOperationResponse.BadRequest(ex.Message);
+		}
+		catch (ElementDeletedException ex)
+		{
+			_logger.LogError(ex, "ElementDeletedException");
+			return PostOperationResponse.BadRequest($"Element by id: {postModel.Id} was deleted");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return PostOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return PostOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public PostOperationResponse RemovePost(string id)
+	{
+		try
+		{
+			_postBusinessLogicContract.DeletePost(id);
+			return PostOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return PostOperationResponse.BadRequest("Id is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return PostOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return PostOperationResponse.BadRequest($"Not found element by id: {id}");
+		}
+		catch (ElementDeletedException ex)
+		{
+			_logger.LogError(ex, "ElementDeletedException");
+			return PostOperationResponse.BadRequest($"Element by id: {id} was deleted");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return PostOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return PostOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public PostOperationResponse RestorePost(string id)
+	{
+		try
+		{
+			_postBusinessLogicContract.RestorePost(id);
+			return PostOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return PostOperationResponse.BadRequest("Id is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return PostOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return PostOperationResponse.BadRequest($"Not found element by id: {id}");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return PostOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return PostOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+}

TheCatHasPawsProject/CatHasPawsWebApi/Adapters/ProductAdapter.cs

@@ -0,0 +1,266 @@
+using AutoMapper;
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.AdapterContracts;
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsWebApi.Adapters;
+
+public class ProductAdapter : IProductAdapter
+{
+	private readonly IProductBusinessLogicContract _productBusinessLogicContract;
+
+	private readonly ILogger _logger;
+
+	private readonly Mapper _mapper;
+
+	public ProductAdapter(IProductBusinessLogicContract productBusinessLogicContract, ILogger<ProductAdapter> logger)
+	{
+		_productBusinessLogicContract = productBusinessLogicContract;
+		_logger = logger;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<ProductBindingModel, ProductDataModel>();
+			cfg.CreateMap<ProductDataModel, ProductViewModel>();
+			cfg.CreateMap<ProductHistoryDataModel, ProductHistoryViewModel>();
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public ProductOperationResponse GetList(bool includeDeleted)
+	{
+		try
+		{
+			return ProductOperationResponse.OK([.. _productBusinessLogicContract.GetAllProducts(!includeDeleted).Select(x => _mapper.Map<ProductViewModel>(x))]);
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return ProductOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ProductOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ProductOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public ProductOperationResponse GetManufacturerList(string id, bool includeDeleted)
+	{
+		try
+		{
+			return ProductOperationResponse.OK([.. _productBusinessLogicContract.GetAllProductsByManufacturer(id, !includeDeleted).Select(x => _mapper.Map<ProductViewModel>(x))]);
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return ProductOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return ProductOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return ProductOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ProductOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ProductOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public ProductOperationResponse GetHistory(string id)
+	{
+		try
+		{
+			return ProductOperationResponse.OK([.. _productBusinessLogicContract.GetProductHistoryByProduct(id).Select(x => _mapper.Map<ProductHistoryViewModel>(x))]);
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return ProductOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return ProductOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ProductOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ProductOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public ProductOperationResponse GetElement(string data)
+	{
+		try
+		{
+			return ProductOperationResponse.OK(_mapper.Map<ProductViewModel>(_productBusinessLogicContract.GetProductByData(data)));
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return ProductOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return ProductOperationResponse.NotFound($"Not found element by data {data}");
+		}
+		catch (ElementDeletedException ex)
+		{
+			_logger.LogError(ex, "ElementDeletedException");
+			return ProductOperationResponse.BadRequest($"Element by data: {data} was deleted");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ProductOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ProductOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public ProductOperationResponse RegisterProduct(ProductBindingModel productModel)
+	{
+		try
+		{
+			_productBusinessLogicContract.InsertProduct(_mapper.Map<ProductDataModel>(productModel));
+			return ProductOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return ProductOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return ProductOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementExistsException ex)
+		{
+			_logger.LogError(ex, "ElementExistsException");
+			return ProductOperationResponse.BadRequest(ex.Message);
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ProductOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ProductOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public ProductOperationResponse ChangeProductInfo(ProductBindingModel productModel)
+	{
+		try
+		{
+			_productBusinessLogicContract.UpdateProduct(_mapper.Map<ProductDataModel>(productModel));
+			return ProductOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return ProductOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return ProductOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return ProductOperationResponse.BadRequest($"Not found element by Id {productModel.Id}");
+		}
+		catch (ElementExistsException ex)
+		{
+			_logger.LogError(ex, "ElementExistsException");
+			return ProductOperationResponse.BadRequest(ex.Message);
+		}
+		catch (ElementDeletedException ex)
+		{
+			_logger.LogError(ex, "ElementDeletedException");
+			return ProductOperationResponse.BadRequest($"Element by id: {productModel.Id} was deleted");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ProductOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ProductOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public ProductOperationResponse RemoveProduct(string id)
+	{
+		try
+		{
+			_productBusinessLogicContract.DeleteProduct(id);
+			return ProductOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return ProductOperationResponse.BadRequest("Id is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return ProductOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return ProductOperationResponse.BadRequest($"Not found element by id: {id}");
+		}
+		catch (ElementDeletedException ex)
+		{
+			_logger.LogError(ex, "ElementDeletedException");
+			return ProductOperationResponse.BadRequest($"Element by id: {id} was deleted");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return ProductOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return ProductOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+}

TheCatHasPawsProject/CatHasPawsWebApi/Adapters/SaleAdapter.cs

@@ -0,0 +1,262 @@
+using AutoMapper;
+using CatHasPawsContratcs.AdapterContracts;
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsWebApi.Adapters;
+
+public class SaleAdapter : ISaleAdapter
+{
+	private readonly ISaleBusinessLogicContract _saleBusinessLogicContract;
+
+	private readonly ILogger _logger;
+
+	private readonly Mapper _mapper;
+
+	public SaleAdapter(ISaleBusinessLogicContract saleBusinessLogicContract, ILogger<SaleAdapter> logger)
+	{
+		_saleBusinessLogicContract = saleBusinessLogicContract;
+		_logger = logger;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<SaleBindingModel, SaleDataModel>();
+			cfg.CreateMap<SaleDataModel, SaleViewModel>();
+			cfg.CreateMap<SaleProductBindingModel, SaleProductDataModel>();
+			cfg.CreateMap<SaleProductDataModel, SaleProductViewModel>();
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public SaleOperationResponse GetList(DateTime fromDate, DateTime toDate)
+	{
+		try
+		{
+			return SaleOperationResponse.OK([.. _saleBusinessLogicContract.GetAllSalesByPeriod(fromDate, toDate).Select(x => _mapper.Map<SaleViewModel>(x))]);
+		}
+		catch (IncorrectDatesException ex)
+		{
+			_logger.LogError(ex, "IncorrectDatesException");
+			return SaleOperationResponse.BadRequest($"Incorrect dates: {ex.Message}");
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return SaleOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return SaleOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return SaleOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public SaleOperationResponse GetWorkerList(string id, DateTime fromDate, DateTime toDate)
+	{
+		try
+		{
+			return SaleOperationResponse.OK([.. _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(id, fromDate, toDate).Select(x => _mapper.Map<SaleViewModel>(x))]);
+		}
+		catch (IncorrectDatesException ex)
+		{
+			_logger.LogError(ex, "IncorrectDatesException");
+			return SaleOperationResponse.BadRequest($"Incorrect dates: {ex.Message}");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return SaleOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return SaleOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return SaleOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return SaleOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public SaleOperationResponse GetBuyerList(string id, DateTime fromDate, DateTime toDate)
+	{
+		try
+		{
+			return SaleOperationResponse.OK([.. _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(id, fromDate, toDate).Select(x => _mapper.Map<SaleViewModel>(x))]);
+		}
+		catch (IncorrectDatesException ex)
+		{
+			_logger.LogError(ex, "IncorrectDatesException");
+			return SaleOperationResponse.BadRequest($"Incorrect dates: {ex.Message}");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return SaleOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return SaleOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return SaleOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return SaleOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public SaleOperationResponse GetProductList(string id, DateTime fromDate, DateTime toDate)
+	{
+		try
+		{
+			return SaleOperationResponse.OK([.. _saleBusinessLogicContract.GetAllSalesByProductByPeriod(id, fromDate, toDate).Select(x => _mapper.Map<SaleViewModel>(x))]);
+		}
+		catch (IncorrectDatesException ex)
+		{
+			_logger.LogError(ex, "IncorrectDatesException");
+			return SaleOperationResponse.BadRequest($"Incorrect dates: {ex.Message}");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return SaleOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return SaleOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return SaleOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return SaleOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public SaleOperationResponse GetElement(string id)
+	{
+		try
+		{
+			return SaleOperationResponse.OK(_mapper.Map<SaleViewModel>(_saleBusinessLogicContract.GetSaleByData(id)));
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return SaleOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return SaleOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return SaleOperationResponse.NotFound($"Not found element by data {id}");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return SaleOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return SaleOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public SaleOperationResponse MakeSale(SaleBindingModel saleModel)
+	{
+		try
+		{
+			var data = _mapper.Map<SaleDataModel>(saleModel);
+			_saleBusinessLogicContract.InsertSale(_mapper.Map<SaleDataModel>(saleModel));
+			return SaleOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return SaleOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return SaleOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return SaleOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return SaleOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public SaleOperationResponse CancelSale(string id)
+	{
+		try
+		{
+			_saleBusinessLogicContract.CancelSale(id);
+			return SaleOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return SaleOperationResponse.BadRequest("Id is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return SaleOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return SaleOperationResponse.BadRequest($"Not found element by id: {id}");
+		}
+		catch (ElementDeletedException ex)
+		{
+			_logger.LogError(ex, "ElementDeletedException");
+			return SaleOperationResponse.BadRequest($"Element by id: {id} was deleted");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return SaleOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return SaleOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+}

TheCatHasPawsProject/CatHasPawsWebApi/Adapters/WorkerAdapter.cs

@@ -0,0 +1,278 @@
+using AutoMapper;
+using CatHasPawsContratcs.AdapterContracts;
+using CatHasPawsContratcs.AdapterContracts.OperationResponses;
+using CatHasPawsContratcs.BindingModels;
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.ViewModels;
+
+namespace CatHasPawsWebApi.Adapters;
+
+public class WorkerAdapter : IWorkerAdapter
+{
+	private readonly IWorkerBusinessLogicContract _buyerBusinessLogicContract;
+
+	private readonly ILogger _logger;
+
+	private readonly Mapper _mapper;
+
+	public WorkerAdapter(IWorkerBusinessLogicContract workerBusinessLogicContract, ILogger<WorkerAdapter> logger)
+	{
+		_buyerBusinessLogicContract = workerBusinessLogicContract;
+		_logger = logger;
+		var config = new MapperConfiguration(cfg =>
+		{
+			cfg.CreateMap<WorkerBindingModel, WorkerDataModel>();
+			cfg.CreateMap<WorkerDataModel, WorkerViewModel>();
+		});
+		_mapper = new Mapper(config);
+	}
+
+	public WorkerOperationResponse GetList(bool includeDeleted)
+	{
+		try
+		{
+			return WorkerOperationResponse.OK([.. _buyerBusinessLogicContract.GetAllWorkers(!includeDeleted).Select(x => _mapper.Map<WorkerViewModel>(x))]);
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return WorkerOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return WorkerOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return WorkerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public WorkerOperationResponse GetPostList(string id, bool includeDeleted)
+	{
+		try
+		{
+			return WorkerOperationResponse.OK([.. _buyerBusinessLogicContract.GetAllWorkersByPost(id, !includeDeleted).Select(x => _mapper.Map<WorkerViewModel>(x))]);
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return WorkerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return WorkerOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return WorkerOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return WorkerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public WorkerOperationResponse GetListByBirthDate(DateTime fromDate, DateTime toDate, bool includeDeleted)
+	{
+		try
+		{
+			return WorkerOperationResponse.OK([.. _buyerBusinessLogicContract.GetAllWorkersByBirthDate(fromDate, toDate, !includeDeleted).Select(x => _mapper.Map<WorkerViewModel>(x))]);
+		}
+		catch (IncorrectDatesException ex)
+		{
+			_logger.LogError(ex, "IncorrectDatesException");
+			return WorkerOperationResponse.BadRequest($"Incorrect dates: {ex.Message}");
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return WorkerOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return WorkerOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return WorkerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public WorkerOperationResponse GetListByEmploymentDate(DateTime fromDate, DateTime toDate, bool includeDeleted)
+	{
+		try
+		{
+			return WorkerOperationResponse.OK([.. _buyerBusinessLogicContract.GetAllWorkersByEmploymentDate(fromDate, toDate, !includeDeleted).Select(x => _mapper.Map<WorkerViewModel>(x))]);
+		}
+		catch (IncorrectDatesException ex)
+		{
+			_logger.LogError(ex, "IncorrectDatesException");
+			return WorkerOperationResponse.BadRequest($"Incorrect dates: {ex.Message}");
+		}
+		catch (NullListException)
+		{
+			_logger.LogError("NullListException");
+			return WorkerOperationResponse.NotFound("The list is not initialized");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return WorkerOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return WorkerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public WorkerOperationResponse GetElement(string data)
+	{
+		try
+		{
+			return WorkerOperationResponse.OK(_mapper.Map<WorkerViewModel>(_buyerBusinessLogicContract.GetWorkerByData(data)));
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return WorkerOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return WorkerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return WorkerOperationResponse.NotFound($"Not found element by data {data}");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return WorkerOperationResponse.InternalServerError($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return WorkerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public WorkerOperationResponse RegisterWorker(WorkerBindingModel workerModel)
+	{
+		try
+		{
+			_buyerBusinessLogicContract.InsertWorker(_mapper.Map<WorkerDataModel>(workerModel));
+			return WorkerOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return WorkerOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return WorkerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementExistsException ex)
+		{
+			_logger.LogError(ex, "ElementExistsException");
+			return WorkerOperationResponse.BadRequest(ex.Message);
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return WorkerOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return WorkerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public WorkerOperationResponse ChangeWorkerInfo(WorkerBindingModel workerModel)
+	{
+		try
+		{
+			_buyerBusinessLogicContract.UpdateWorker(_mapper.Map<WorkerDataModel>(workerModel));
+			return WorkerOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return WorkerOperationResponse.BadRequest("Data is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return WorkerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return WorkerOperationResponse.BadRequest($"Not found element by Id {workerModel.Id}");
+		}
+		catch (ElementExistsException ex)
+		{
+			_logger.LogError(ex, "ElementExistsException");
+			return WorkerOperationResponse.BadRequest(ex.Message);
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return WorkerOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return WorkerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+
+	public WorkerOperationResponse RemoveWorker(string id)
+	{
+		try
+		{
+			_buyerBusinessLogicContract.DeleteWorker(id);
+			return WorkerOperationResponse.NoContent();
+		}
+		catch (ArgumentNullException ex)
+		{
+			_logger.LogError(ex, "ArgumentNullException");
+			return WorkerOperationResponse.BadRequest("Id is empty");
+		}
+		catch (ValidationException ex)
+		{
+			_logger.LogError(ex, "ValidationException");
+			return WorkerOperationResponse.BadRequest($"Incorrect data transmitted: {ex.Message}");
+		}
+		catch (ElementNotFoundException ex)
+		{
+			_logger.LogError(ex, "ElementNotFoundException");
+			return WorkerOperationResponse.BadRequest($"Not found element by id: {id}");
+		}
+		catch (StorageException ex)
+		{
+			_logger.LogError(ex, "StorageException");
+			return WorkerOperationResponse.BadRequest($"Error while working with data storage: {ex.InnerException!.Message}");
+		}
+		catch (Exception ex)
+		{
+			_logger.LogError(ex, "Exception");
+			return WorkerOperationResponse.InternalServerError(ex.Message);
+		}
+	}
+}

TheCatHasPawsProject/CatHasPawsWebApi/AuthOptions.cs

@@ -0,0 +1,12 @@
+using Microsoft.IdentityModel.Tokens;
+using System.Text;
+
+namespace CatHasPawsWebApi;
+
+public class AuthOptions
+{
+	public const string ISSUER = "CatHasPaws_AuthServer"; // издатель токена
+	public const string AUDIENCE = "CatHasPaws_AuthClient"; // потребитель токена
+	const string KEY = "catsecret_secretsecretsecretkey!123";   // ключ для шифрации
+	public static SymmetricSecurityKey GetSymmetricSecurityKey() => new(Encoding.UTF8.GetBytes(KEY));
+}

TheCatHasPawsProject/CatHasPawsWebApi/CatHasPawsWebApi.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="9.0.2" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.2" />
+    <PackageReference Include="Serilog.AspNetCore" Version="9.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\CatHasPawsBusinessLogic\CatHasPawsBusinessLogic.csproj" />
+    <ProjectReference Include="..\CatHasPawsContratcs\CatHasPawsContratcs.csproj" />
+    <ProjectReference Include="..\CatHasPawsDatabase\CatHasPawsDatabase.csproj" />
+  </ItemGroup>
+
+	<ItemGroup>
+		<InternalsVisibleTo Include="CatHasPawsTests" />
+		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
+	</ItemGroup>
+
+</Project>

TheCatHasPawsProject/CatHasPawsWebApi/CatHasPawsWebApi.http

@@ -0,0 +1,6 @@
+@CatHasPawsWebApi_HostAddress = http://localhost:5037
+
+GET {{CatHasPawsWebApi_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

TheCatHasPawsProject/CatHasPawsWebApi/Controllers/BuyersController.cs

@@ -0,0 +1,45 @@
+using CatHasPawsContratcs.AdapterContracts;
+using CatHasPawsContratcs.BindingModels;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace CatHasPawsWebApi.Controllers;
+
+[Authorize]
+[Route("api/[controller]")]
+[ApiController]
+[Produces("application/json")]
+public class BuyersController(IBuyerAdapter adapter) : ControllerBase
+{
+	private readonly IBuyerAdapter _adapter = adapter;
+
+	[HttpGet]
+	public IActionResult GetAllRecords()
+	{
+		return _adapter.GetList().GetResponse(Request, Response);
+	}
+
+	[HttpGet("{data}")]
+	public IActionResult GetRecord(string data)
+	{
+		return _adapter.GetElement(data).GetResponse(Request, Response);
+	}
+
+	[HttpPost]
+	public IActionResult Register([FromBody] BuyerBindingModel model)
+	{
+		return _adapter.RegisterBuyer(model).GetResponse(Request, Response);
+	}
+
+	[HttpPut]
+	public IActionResult ChangeInfo([FromBody] BuyerBindingModel model)
+	{
+		return _adapter.ChangeBuyerInfo(model).GetResponse(Request, Response);
+	}
+
+	[HttpDelete("{id}")]
+	public IActionResult Delete(string id)
+	{
+		return _adapter.RemoveBuyer(id).GetResponse(Request, Response);
+	}
+}

TheCatHasPawsProject/CatHasPawsWebApi/Controllers/ManufacturersController.cs

@@ -0,0 +1,45 @@
+using CatHasPawsContratcs.AdapterContracts;
+using CatHasPawsContratcs.BindingModels;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace CatHasPawsWebApi.Controllers;
+
+[Authorize]
+[Route("api/[controller]")]
+[ApiController]
+[Produces("application/json")]
+public class ManufacturersController(IManufacturerAdapter adapter) : ControllerBase
+{
+	private readonly IManufacturerAdapter _adapter = adapter;
+
+	[HttpGet]
+	public IActionResult GetAllRecords()
+	{
+		return _adapter.GetList().GetResponse(Request, Response);
+	}
+
+	[HttpGet("{data}")]
+	public IActionResult GetRecord(string data)
+	{
+		return _adapter.GetElement(data).GetResponse(Request, Response);
+	}
+
+	[HttpPost]
+	public IActionResult Register([FromBody] ManufacturerBindingModel model)
+	{
+		return _adapter.RegisterManufacturer(model).GetResponse(Request, Response);
+	}
+
+	[HttpPut]
+	public IActionResult ChangeInfo([FromBody] ManufacturerBindingModel model)
+	{
+		return _adapter.ChangeManufacturerInfo(model).GetResponse(Request, Response);
+	}
+
+	[HttpDelete("{id}")]
+	public IActionResult Delete(string id)
+	{
+		return _adapter.RemoveManufacturer(id).GetResponse(Request, Response);
+	}
+}

TheCatHasPawsProject/CatHasPawsWebApi/Controllers/PostHistoryController.cs

@@ -0,0 +1,20 @@
+using CatHasPawsContratcs.AdapterContracts;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace CatHasPawsWebApi.Controllers;
+
+[Authorize]
+[Route("api/[controller]")]
+[ApiController]
+[Produces("application/json")]
+public class PostHistoryController(IPostAdapter adapter) : ControllerBase
+{
+	private readonly IPostAdapter _adapter = adapter;
+
+	[HttpGet("{id}")]
+	public IActionResult GetHistory(string id)
+	{
+		return _adapter.GetHistory(id).GetResponse(Request, Response);
+	}
+}

TheCatHasPawsProject/CatHasPawsWebApi/Controllers/PostsController.cs

@@ -0,0 +1,51 @@
+using CatHasPawsContratcs.AdapterContracts;
+using CatHasPawsContratcs.BindingModels;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace CatHasPawsWebApi.Controllers;
+
+[Authorize]
+[Route("api/[controller]")]
+[ApiController]
+[Produces("application/json")]
+public class PostsController(IPostAdapter adapter) : ControllerBase
+{
+	private readonly IPostAdapter _adapter = adapter;
+
+	[HttpGet]
+	public IActionResult GetRecords()
+	{
+		return _adapter.GetList().GetResponse(Request, Response);
+	}
+
+	[HttpGet("{data}")]
+	public IActionResult GetRecord(string data)
+	{
+		return _adapter.GetElement(data).GetResponse(Request, Response);
+	}
+
+	[HttpPost]
+	public IActionResult Register([FromBody] PostBindingModel model)
+	{
+		return _adapter.RegisterPost(model).GetResponse(Request, Response);
+	}
+
+	[HttpPut]
+	public IActionResult ChangeInfo([FromBody] PostBindingModel model)
+	{
+		return _adapter.ChangePostInfo(model).GetResponse(Request, Response);
+	}
+
+	[HttpDelete("{id}")]
+	public IActionResult Delete(string id)
+	{
+		return _adapter.RemovePost(id).GetResponse(Request, Response);
+	}
+
+	[HttpPatch("{id}")]
+	public IActionResult Restore(string id)
+	{
+		return _adapter.RestorePost(id).GetResponse(Request, Response);
+	}
+}

TheCatHasPawsProject/CatHasPawsWebApi/Controllers/ProductsController.cs

@@ -0,0 +1,57 @@
+using CatHasPawsContratcs.AdapterContracts;
+using CatHasPawsContratcs.BindingModels;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace CatHasPawsWebApi.Controllers;
+
+[Authorize]
+[Route("api/[controller]/[action]")]
+[ApiController]
+[Produces("application/json")]
+public class ProductsController(IProductAdapter adapter) : ControllerBase
+{
+	private readonly IProductAdapter _adapter = adapter;
+
+	[HttpGet]
+	public IActionResult GetRecords(bool includeDeleted)
+	{
+		return _adapter.GetList(includeDeleted).GetResponse(Request, Response);
+	}
+
+	[HttpGet]
+	public IActionResult GetManufacturerRecords(string id, bool includeDeleted)
+	{
+		return _adapter.GetManufacturerList(id, includeDeleted).GetResponse(Request, Response);
+	}
+
+	[HttpGet]
+	public IActionResult GetHistory(string id)
+	{
+		return _adapter.GetHistory(id).GetResponse(Request, Response);
+	}
+
+	[HttpGet("{data}")]
+	public IActionResult GetRecord(string data)
+	{
+		return _adapter.GetElement(data).GetResponse(Request, Response);
+	}
+
+	[HttpPost]
+	public IActionResult Register([FromBody] ProductBindingModel model)
+	{
+		return _adapter.RegisterProduct(model).GetResponse(Request, Response);
+	}
+
+	[HttpPut]
+	public IActionResult ChangeInfo([FromBody] ProductBindingModel model)
+	{
+		return _adapter.ChangeProductInfo(model).GetResponse(Request, Response);
+	}
+
+	[HttpDelete("{id}")]
+	public IActionResult Delete(string id)
+	{
+		return _adapter.RemoveProduct(id).GetResponse(Request, Response);
+	}
+}