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This reverts commit e40e9edd5d.

TheCatHasPawsProject/CatHasPawsBusinessLogic/CatHasPawsBusinessLogic.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+	<ItemGroup>
+		<InternalsVisibleTo Include="CatHasPawsTests" />
+		<InternalsVisibleTo Include="CatHasPawsWebApi" />
+		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
+	</ItemGroup>
+
+	<ItemGroup>
+	  <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.1" />
+	</ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\CatHasPawsContratcs\CatHasPawsContratcs.csproj" />
+  </ItemGroup>
+
+</Project>

TheCatHasPawsProject/CatHasPawsBusinessLogic/Implementations/BuyerBusinessLogicContract.cs

@@ -0,0 +1,70 @@
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System.Text.Json;
+using System.Text.RegularExpressions;
+
+namespace CatHasPawsBusinessLogic.Implementations;
+
+internal class BuyerBusinessLogicContract(IBuyerStorageContract buyerStorageContract, ILogger logger) : IBuyerBusinessLogicContract
+{
+	private readonly ILogger _logger = logger;
+	private readonly IBuyerStorageContract _buyerStorageContract = buyerStorageContract;
+
+	public List<BuyerDataModel> GetAllBuyers()
+	{
+		_logger.LogInformation("GetAllBuyers");
+		return _buyerStorageContract.GetList() ?? throw new NullListException();
+	}
+
+	public BuyerDataModel GetBuyerByData(string data)
+	{
+		_logger.LogInformation("Get element by data: {data}", data);
+		if (data.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(data));
+		}
+		if (data.IsGuid())
+		{
+			return _buyerStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+		}
+		if (Regex.IsMatch(data, @"^((8|\+7)[\- ]?)?(\(?\d{3}\)?[\- ]?)?[\d\- ]{7,10}$"))
+		{
+			return _buyerStorageContract.GetElementByPhoneNumber(data) ?? throw new ElementNotFoundException(data);
+		}
+		return _buyerStorageContract.GetElementByFIO(data) ?? throw new ElementNotFoundException(data);
+	}
+
+	public void InsertBuyer(BuyerDataModel buyerDataModel)
+	{
+		_logger.LogInformation("New data: {json}", JsonSerializer.Serialize(buyerDataModel));
+		ArgumentNullException.ThrowIfNull(buyerDataModel);
+		buyerDataModel.Validate();
+		_buyerStorageContract.AddElement(buyerDataModel);
+	}
+
+	public void UpdateBuyer(BuyerDataModel buyerDataModel)
+	{
+		_logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(buyerDataModel));
+		ArgumentNullException.ThrowIfNull(buyerDataModel);
+		buyerDataModel.Validate();
+		_buyerStorageContract.UpdElement(buyerDataModel);
+	}
+
+	public void DeleteBuyer(string id)
+	{
+		_logger.LogInformation("Delete by id: {id}", id);
+		if (id.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(id));
+		}
+		if (!id.IsGuid())
+		{
+			throw new ValidationException("Id is not a unique identifier");
+		}
+		_buyerStorageContract.DelElement(id);
+	}
+}

TheCatHasPawsProject/CatHasPawsBusinessLogic/Implementations/ManufacturerBusinessLogicContract.cs

@@ -0,0 +1,66 @@
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System.Text.Json;
+
+namespace CatHasPawsBusinessLogic.Implementations;
+
+internal class ManufacturerBusinessLogicContract(IManufacturerStorageContract manufacturerStorageContract, ILogger logger) : IManufacturerBusinessLogicContract
+{
+	private readonly ILogger _logger = logger;
+	private readonly IManufacturerStorageContract _manufacturerStorageContract = manufacturerStorageContract;
+
+	public List<ManufacturerDataModel> GetAllManufacturers()
+	{
+		_logger.LogInformation("GetAllManufacturers");
+		return _manufacturerStorageContract.GetList() ?? throw new NullListException();
+	}
+
+	public ManufacturerDataModel GetManufacturerByData(string data)
+	{
+		_logger.LogInformation("Get element by data: {data}", data);
+		if (data.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(data));
+		}
+		if (data.IsGuid())
+		{
+			return _manufacturerStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+		}
+		return _manufacturerStorageContract.GetElementByName(data) ?? _manufacturerStorageContract.GetElementByOldName(data) ??
+			throw new ElementNotFoundException(data);
+	}
+
+	public void InsertManufacturer(ManufacturerDataModel manufacturerDataModel)
+	{
+		_logger.LogInformation("New data: {json}", JsonSerializer.Serialize(manufacturerDataModel));
+		ArgumentNullException.ThrowIfNull(manufacturerDataModel);
+		manufacturerDataModel.Validate();
+		_manufacturerStorageContract.AddElement(manufacturerDataModel);
+	}
+
+	public void UpdateManufacturer(ManufacturerDataModel manufacturerDataModel)
+	{
+		_logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(manufacturerDataModel));
+		ArgumentNullException.ThrowIfNull(manufacturerDataModel);
+		manufacturerDataModel.Validate();
+		_manufacturerStorageContract.UpdElement(manufacturerDataModel);
+	}
+
+	public void DeleteManufacturer(string id)
+	{
+		_logger.LogInformation("Delete by id: {id}", id);
+		if (id.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(id));
+		}
+		if (!id.IsGuid())
+		{
+			throw new ValidationException("Id is not a unique identifier");
+		}
+		_manufacturerStorageContract.DelElement(id);
+	}
+}

TheCatHasPawsProject/CatHasPawsBusinessLogic/Implementations/PostBusinessLogicContract.cs

@@ -0,0 +1,93 @@
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System.Text.Json;
+
+namespace CatHasPawsBusinessLogic.Implementations;
+
+internal class PostBusinessLogicContract(IPostStorageContract postStorageContract, ILogger logger) : IPostBusinessLogicContract
+{
+	private readonly ILogger _logger = logger;
+	private readonly IPostStorageContract _postStorageContract = postStorageContract;
+
+	public List<PostDataModel> GetAllPosts()
+	{
+		_logger.LogInformation("GetAllPosts");
+		return _postStorageContract.GetList() ?? throw new NullListException();
+	}
+
+	public List<PostDataModel> GetAllDataOfPost(string postId)
+	{
+		_logger.LogInformation("GetAllDataOfPost for {postId}", postId);
+		if (postId.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(postId));
+		}
+		if (!postId.IsGuid())
+		{
+			throw new ValidationException("The value in the field postId is not a unique identifier.");
+		}
+		return _postStorageContract.GetPostWithHistory(postId) ?? throw new NullListException();
+	}
+
+	public PostDataModel GetPostByData(string data)
+	{
+		_logger.LogInformation("Get element by data: {data}", data);
+		if (data.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(data));
+		}
+		if (data.IsGuid())
+		{
+			return _postStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+		}
+		return _postStorageContract.GetElementByName(data) ?? throw new ElementNotFoundException(data);
+	}
+
+	public void InsertPost(PostDataModel postDataModel)
+	{
+		_logger.LogInformation("New data: {json}", JsonSerializer.Serialize(postDataModel));
+		ArgumentNullException.ThrowIfNull(postDataModel);
+		postDataModel.Validate();
+		_postStorageContract.AddElement(postDataModel);
+	}
+
+	public void UpdatePost(PostDataModel postDataModel)
+	{
+		_logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(postDataModel));
+		ArgumentNullException.ThrowIfNull(postDataModel);
+		postDataModel.Validate();
+		_postStorageContract.UpdElement(postDataModel);
+	}
+
+	public void DeletePost(string id)
+	{
+		_logger.LogInformation("Delete by id: {id}", id);
+		if (id.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(id));
+		}
+		if (!id.IsGuid())
+		{
+			throw new ValidationException("Id is not a unique identifier");
+		}
+		_postStorageContract.DelElement(id);
+	}
+
+	public void RestorePost(string id)
+	{
+		_logger.LogInformation("Restore by id: {id}", id);
+		if (id.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(id));
+		}
+		if (!id.IsGuid())
+		{
+			throw new ValidationException("Id is not a unique identifier");
+		}
+		_postStorageContract.ResElement(id);
+	}
+}

TheCatHasPawsProject/CatHasPawsBusinessLogic/Implementations/ProductBusinessLogicContract.cs

@@ -0,0 +1,93 @@
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System.Text.Json;
+
+namespace CatHasPawsBusinessLogic.Implementations;
+
+internal class ProductBusinessLogicContract(IProductStorageContract productStorageContract, ILogger logger) : IProductBusinessLogicContract
+{
+	private readonly ILogger _logger = logger;
+	private readonly IProductStorageContract _productStorageContract = productStorageContract;
+
+	public List<ProductDataModel> GetAllProducts(bool onlyActive)
+	{
+		_logger.LogInformation("GetAllProducts params: {onlyActive}", onlyActive);
+		return _productStorageContract.GetList(onlyActive) ?? throw new NullListException();
+	}
+
+	public List<ProductDataModel> GetAllProductsByManufacturer(string manufacturerId, bool onlyActive = true)
+	{
+		if (manufacturerId.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(manufacturerId));
+		}
+		if (!manufacturerId.IsGuid())
+		{
+			throw new ValidationException("The value in the field manufacturerId is not a unique identifier.");
+		}
+		_logger.LogInformation("GetAllProducts params: {manufacturerId}, {onlyActive}", manufacturerId, onlyActive);
+		return _productStorageContract.GetList(onlyActive, manufacturerId) ?? throw new NullListException();
+	}
+
+	public List<ProductHistoryDataModel> GetProductHistoryByProduct(string productId)
+	{
+		_logger.LogInformation("GetProductHistoryByProduct for {productId}", productId);
+		if (productId.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(productId));
+		}
+		if (!productId.IsGuid())
+		{
+			throw new ValidationException("The value in the field productId is not a unique identifier.");
+		}
+		return _productStorageContract.GetHistoryByProductId(productId) ?? throw new NullListException();
+	}
+
+	public ProductDataModel GetProductByData(string data)
+	{
+		_logger.LogInformation("Get element by data: {data}", data);
+		if (data.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(data));
+		}
+		if (data.IsGuid())
+		{
+			return _productStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+		}
+		return _productStorageContract.GetElementByName(data) ?? throw new ElementNotFoundException(data);
+	}
+
+	public void InsertProduct(ProductDataModel productDataModel)
+	{
+		_logger.LogInformation("New data: {json}", JsonSerializer.Serialize(productDataModel));
+		ArgumentNullException.ThrowIfNull(productDataModel);
+		productDataModel.Validate();
+		_productStorageContract.AddElement(productDataModel);
+	}
+
+	public void UpdateProduct(ProductDataModel productDataModel)
+	{
+		_logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(productDataModel));
+		ArgumentNullException.ThrowIfNull(productDataModel);
+		productDataModel.Validate();
+		_productStorageContract.UpdElement(productDataModel);
+	}
+
+	public void DeleteProduct(string id)
+	{
+		_logger.LogInformation("Delete by id: {id}", id);
+		if (id.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(id));
+		}
+		if (!id.IsGuid())
+		{
+			throw new ValidationException("Id is not a unique identifier");
+		}
+		_productStorageContract.DelElement(id);
+	}
+}

TheCatHasPawsProject/CatHasPawsBusinessLogic/Implementations/SalaryBusinessLogicContract.cs

@@ -0,0 +1,64 @@
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+
+namespace CatHasPawsBusinessLogic.Implementations;
+
+internal class SalaryBusinessLogicContract(ISalaryStorageContract salaryStorageContract,
+	ISaleStorageContract saleStorageContract, IPostStorageContract postStorageContract, IWorkerStorageContract workerStorageContract, ILogger logger) : ISalaryBusinessLogicContract
+{
+	private readonly ILogger _logger = logger;
+	private readonly ISalaryStorageContract _salaryStorageContract = salaryStorageContract;
+	private readonly ISaleStorageContract _saleStorageContract = saleStorageContract;
+	private readonly IPostStorageContract _postStorageContract = postStorageContract;
+	private readonly IWorkerStorageContract _workerStorageContract = workerStorageContract;
+
+	public List<SalaryDataModel> GetAllSalariesByPeriod(DateTime fromDate, DateTime toDate)
+	{
+		_logger.LogInformation("GetAllSalaries params: {fromDate}, {toDate}", fromDate, toDate);
+		if (fromDate.IsDateNotOlder(toDate))
+		{
+			throw new IncorrectDatesException(fromDate, toDate);
+		}
+		return _salaryStorageContract.GetList(fromDate, toDate) ?? throw new NullListException();
+	}
+
+	public List<SalaryDataModel> GetAllSalariesByPeriodByWorker(DateTime fromDate, DateTime toDate, string workerId)
+	{
+		if (fromDate.IsDateNotOlder(toDate))
+		{
+			throw new IncorrectDatesException(fromDate, toDate);
+		}
+		if (workerId.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(workerId));
+		}
+		if (!workerId.IsGuid())
+		{
+			throw new ValidationException("The value in the field workerId is not a unique identifier.");
+		}
+		_logger.LogInformation("GetAllSalaries params: {fromDate}, {toDate}, {workerId}", fromDate, toDate, workerId);
+		return _salaryStorageContract.GetList(fromDate, toDate, workerId) ?? throw new NullListException();
+	}
+
+	public void CalculateSalaryByMounth(DateTime date)
+	{
+		_logger.LogInformation("CalculateSalaryByMounth: {date}", date);
+		var startDate = new DateTime(date.Year, date.Month, 1);
+		var finishDate = new DateTime(date.Year, date.Month, DateTime.DaysInMonth(date.Year, date.Month));
+		var workers = _workerStorageContract.GetList() ?? throw new NullListException();
+		foreach (var worker in workers)
+		{
+			var sales = _saleStorageContract.GetList(startDate, finishDate, workerId: worker.Id)?.Sum(x => x.Sum) ??
+				throw new NullListException();
+			var post = _postStorageContract.GetElementById(worker.PostId) ??
+				throw new NullListException();
+			var salary = post.Salary + sales * 0.1;
+			_logger.LogDebug("The employee {workerId} was paid a salary of {salary}", worker.Id, salary);
+			_salaryStorageContract.AddElement(new SalaryDataModel(worker.Id, finishDate, salary));
+		}
+	}
+}

TheCatHasPawsProject/CatHasPawsBusinessLogic/Implementations/SaleBusinessLogicContract.cs

@@ -0,0 +1,115 @@
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System.Text.Json;
+
+namespace CatHasPawsBusinessLogic.Implementations;
+
+internal class SaleBusinessLogicContract(ISaleStorageContract saleStorageContract, ILogger logger) : ISaleBusinessLogicContract
+{
+	private readonly ILogger _logger = logger;
+	private readonly ISaleStorageContract _saleStorageContract = saleStorageContract;
+
+	public List<SaleDataModel> GetAllSalesByPeriod(DateTime fromDate, DateTime toDate)
+	{
+		_logger.LogInformation("GetAllSales params: {fromDate}, {toDate}", fromDate, toDate);
+		if (fromDate.IsDateNotOlder(toDate))
+		{
+			throw new IncorrectDatesException(fromDate, toDate);
+		}
+		return _saleStorageContract.GetList(fromDate, toDate) ?? throw new NullListException();
+	}
+
+	public List<SaleDataModel> GetAllSalesByWorkerByPeriod(string workerId, DateTime fromDate, DateTime toDate)
+	{
+		_logger.LogInformation("GetAllSales params: {workerId}, {fromDate}, {toDate}", workerId, fromDate, toDate);
+		if (fromDate.IsDateNotOlder(toDate))
+		{
+			throw new IncorrectDatesException(fromDate, toDate);
+		}
+		if (workerId.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(workerId));
+		}
+		if (!workerId.IsGuid())
+		{
+			throw new ValidationException("The value in the field workerId is not a unique identifier.");
+		}
+		return _saleStorageContract.GetList(fromDate, toDate, workerId: workerId) ?? throw new NullListException();
+	}
+
+	public List<SaleDataModel> GetAllSalesByBuyerByPeriod(string buyerId, DateTime fromDate, DateTime toDate)
+	{
+		_logger.LogInformation("GetAllSales params: {buyerId}, {fromDate}, {toDate}", buyerId, fromDate, toDate);
+		if (fromDate.IsDateNotOlder(toDate))
+		{
+			throw new IncorrectDatesException(fromDate, toDate);
+		}
+		if (buyerId.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(buyerId));
+		}
+		if (!buyerId.IsGuid())
+		{
+			throw new ValidationException("The value in the field buyerId is not a unique identifier.");
+		}
+		return _saleStorageContract.GetList(fromDate, toDate, buyerId: buyerId) ?? throw new NullListException();
+	}
+
+	public List<SaleDataModel> GetAllSalesByProductByPeriod(string productId, DateTime fromDate, DateTime toDate)
+	{
+		_logger.LogInformation("GetAllSales params: {productId}, {fromDate}, {toDate}", productId, fromDate, toDate);
+		if (fromDate.IsDateNotOlder(toDate))
+		{
+			throw new IncorrectDatesException(fromDate, toDate);
+		}
+		if (productId.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(productId));
+		}
+		if (!productId.IsGuid())
+		{
+			throw new ValidationException("The value in the field productId is not a unique identifier.");
+		}
+		return _saleStorageContract.GetList(fromDate, toDate, productId: productId) ?? throw new NullListException();
+	}
+
+	public SaleDataModel GetSaleByData(string data)
+	{
+		_logger.LogInformation("Get element by data: {data}", data);
+		if (data.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(data));
+		}
+		if (!data.IsGuid())
+		{
+			throw new ValidationException("Id is not a unique identifier");
+		}
+		return _saleStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+	}
+
+	public void InsertSale(SaleDataModel saleDataModel)
+	{
+		_logger.LogInformation("New data: {json}", JsonSerializer.Serialize(saleDataModel));
+		ArgumentNullException.ThrowIfNull(saleDataModel);
+		saleDataModel.Validate();
+		_saleStorageContract.AddElement(saleDataModel);
+	}
+
+	public void CancelSale(string id)
+	{
+		_logger.LogInformation("Cancel by id: {id}", id);
+		if (id.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(id));
+		}
+		if (!id.IsGuid())
+		{
+			throw new ValidationException("Id is not a unique identifier");
+		}
+		_saleStorageContract.DelElement(id);
+	}
+}

TheCatHasPawsProject/CatHasPawsBusinessLogic/Implementations/WorkerBusinessLogicContract.cs

@@ -0,0 +1,99 @@
+using CatHasPawsContratcs.BusinessLogicsContracts;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using System.Text.Json;
+
+namespace CatHasPawsBusinessLogic.Implementations;
+
+internal class WorkerBusinessLogicContract(IWorkerStorageContract workerStorageContract, ILogger logger) : IWorkerBusinessLogicContract
+{
+	private readonly ILogger _logger = logger;
+	private readonly IWorkerStorageContract _workerStorageContract = workerStorageContract;
+
+	public List<WorkerDataModel> GetAllWorkers(bool onlyActive = true)
+	{
+		_logger.LogInformation("GetAllWorkers params: {onlyActive}", onlyActive);
+		return _workerStorageContract.GetList(onlyActive) ?? throw new NullListException();
+	}
+
+	public List<WorkerDataModel> GetAllWorkersByPost(string postId, bool onlyActive = true)
+	{
+		_logger.LogInformation("GetAllWorkers params: {postId}, {onlyActive},", postId, onlyActive);
+		if (postId.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(postId));
+		}
+		if (!postId.IsGuid())
+		{
+			throw new ValidationException("The value in the field postId is not a unique identifier.");
+		}
+		return _workerStorageContract.GetList(onlyActive, postId) ?? throw new NullListException();
+	}
+
+	public List<WorkerDataModel> GetAllWorkersByBirthDate(DateTime fromDate, DateTime toDate, bool onlyActive = true)
+	{
+		_logger.LogInformation("GetAllWorkers params: {onlyActive}, {fromDate}, {toDate}", onlyActive, fromDate, toDate);
+		if (fromDate.IsDateNotOlder(toDate))
+		{
+			throw new IncorrectDatesException(fromDate, toDate);
+		}
+		return _workerStorageContract.GetList(onlyActive, fromBirthDate: fromDate, toBirthDate: toDate) ?? throw new NullListException();
+	}
+
+	public List<WorkerDataModel> GetAllWorkersByEmploymentDate(DateTime fromDate, DateTime toDate, bool onlyActive = true)
+	{
+		_logger.LogInformation("GetAllWorkers params: {onlyActive}, {fromDate}, {toDate}", onlyActive, fromDate, toDate);
+		if (fromDate.IsDateNotOlder(toDate))
+		{
+			throw new IncorrectDatesException(fromDate, toDate);
+		}
+		return _workerStorageContract.GetList(onlyActive, fromEmploymentDate: fromDate, toEmploymentDate: toDate) ?? throw new NullListException();
+	}
+
+	public WorkerDataModel GetWorkerByData(string data)
+	{
+		_logger.LogInformation("Get element by data: {data}", data);
+		if (data.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(data));
+		}
+		if (data.IsGuid())
+		{
+			return _workerStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+		}
+		return _workerStorageContract.GetElementByFIO(data) ?? throw new ElementNotFoundException(data);
+	}
+
+	public void InsertWorker(WorkerDataModel workerDataModel)
+	{
+		_logger.LogInformation("New data: {json}", JsonSerializer.Serialize(workerDataModel));
+		ArgumentNullException.ThrowIfNull(workerDataModel);
+		workerDataModel.Validate();
+		_workerStorageContract.AddElement(workerDataModel);
+	}
+
+	public void UpdateWorker(WorkerDataModel workerDataModel)
+	{
+		_logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(workerDataModel));
+		ArgumentNullException.ThrowIfNull(workerDataModel);
+		workerDataModel.Validate();
+		_workerStorageContract.UpdElement(workerDataModel);
+	}
+
+	public void DeleteWorker(string id)
+	{
+		_logger.LogInformation("Delete by id: {id}", id);
+		if (id.IsEmpty())
+		{
+			throw new ArgumentNullException(nameof(id));
+		}
+		if (!id.IsGuid())
+		{
+			throw new ValidationException("Id is not a unique identifier");
+		}
+		_workerStorageContract.DelElement(id);
+	}
+}

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/IBuyerBusinessLogicContract.cs

@@ -0,0 +1,16 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.BusinessLogicsContracts;
+
+public interface IBuyerBusinessLogicContract
+{
+	List<BuyerDataModel> GetAllBuyers();
+
+	BuyerDataModel GetBuyerByData(string data);
+
+	void InsertBuyer(BuyerDataModel buyerDataModel);
+
+	void UpdateBuyer(BuyerDataModel buyerDataModel);
+
+	void DeleteBuyer(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/BusinessLogicsContracts/IManufacturerBusinessLogicContract.cs

@@ -0,0 +1,16 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.BusinessLogicsContracts;
+
+public interface IManufacturerBusinessLogicContract
+{
+	List<ManufacturerDataModel> GetAllManufacturers();
+
+	ManufacturerDataModel GetManufacturerByData(string data);
+
+	void InsertManufacturer(ManufacturerDataModel manufacturerDataModel);
+
+	void UpdateManufacturer(ManufacturerDataModel manufacturerDataModel);
+
+	void DeleteManufacturer(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/BusinessLogicsContracts/IPostBusinessLogicContract.cs

@@ -0,0 +1,20 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.BusinessLogicsContracts;
+
+public interface IPostBusinessLogicContract
+{
+	List<PostDataModel> GetAllPosts();
+
+	List<PostDataModel> GetAllDataOfPost(string postId);
+
+	PostDataModel GetPostByData(string data);
+
+	void InsertPost(PostDataModel postDataModel);
+
+	void UpdatePost(PostDataModel postDataModel);
+
+	void DeletePost(string id);
+
+	void RestorePost(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/BusinessLogicsContracts/IProductBusinessLogicContract.cs

@@ -0,0 +1,20 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.BusinessLogicsContracts;
+
+public interface IProductBusinessLogicContract
+{
+	List<ProductDataModel> GetAllProducts(bool onlyActive = true);
+
+	List<ProductDataModel> GetAllProductsByManufacturer(string manufacturerId, bool onlyActive = true);
+
+	List<ProductHistoryDataModel> GetProductHistoryByProduct(string productId);
+
+	ProductDataModel GetProductByData(string data);
+
+	void InsertProduct(ProductDataModel productDataModel);
+
+	void UpdateProduct(ProductDataModel productDataModel);
+
+	void DeleteProduct(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/BusinessLogicsContracts/ISalaryBusinessLogicContract.cs

@@ -0,0 +1,12 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.BusinessLogicsContracts;
+
+public interface ISalaryBusinessLogicContract
+{
+	List<SalaryDataModel> GetAllSalariesByPeriod(DateTime fromDate, DateTime toDate);
+
+	List<SalaryDataModel> GetAllSalariesByPeriodByWorker(DateTime fromDate, DateTime toDate, string workerId);
+
+	void CalculateSalaryByMounth(DateTime date);
+}

TheCatHasPawsProject/CatHasPawsContratcs/BusinessLogicsContracts/ISaleBusinessLogicContract.cs

@@ -0,0 +1,20 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.BusinessLogicsContracts;
+
+public interface ISaleBusinessLogicContract
+{
+	List<SaleDataModel> GetAllSalesByPeriod(DateTime fromDate, DateTime toDate);
+
+	List<SaleDataModel> GetAllSalesByWorkerByPeriod(string workerId, DateTime fromDate, DateTime toDate);
+
+	List<SaleDataModel> GetAllSalesByBuyerByPeriod(string buyerId, DateTime fromDate, DateTime toDate);
+
+	List<SaleDataModel> GetAllSalesByProductByPeriod(string productId, DateTime fromDate, DateTime toDate);
+
+	SaleDataModel GetSaleByData(string data);
+
+	void InsertSale(SaleDataModel saleDataModel);
+
+	void CancelSale(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/BusinessLogicsContracts/IWorkerBusinessLogicContract.cs

@@ -0,0 +1,22 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.BusinessLogicsContracts;
+
+public interface IWorkerBusinessLogicContract
+{
+	List<WorkerDataModel> GetAllWorkers(bool onlyActive = true);
+
+	List<WorkerDataModel> GetAllWorkersByPost(string postId, bool onlyActive = true);
+
+	List<WorkerDataModel> GetAllWorkersByBirthDate(DateTime fromDate, DateTime toDate, bool onlyActive = true);
+
+	List<WorkerDataModel> GetAllWorkersByEmploymentDate(DateTime fromDate, DateTime toDate, bool onlyActive = true);
+
+	WorkerDataModel GetWorkerByData(string data);
+
+	void InsertWorker(WorkerDataModel workerDataModel);
+
+	void UpdateWorker(WorkerDataModel workerDataModel);
+
+	void DeleteWorker(string id);
+}

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/BuyerDataModel.cs

@@ -0,0 +1,35 @@
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.Infrastructure;
+using System.Text.RegularExpressions;
+
+namespace CatHasPawsContratcs.DataModels;
+
+public class BuyerDataModel(string id, string fio, string phoneNumber, double discountSize) : IValidation
+{
+	public string Id { get; private set; } = id;
+
+	public string FIO { get; private set; } = fio;
+
+	public string PhoneNumber { get; private set; } = phoneNumber;
+
+	public double DiscountSize { get; private set; } = discountSize;
+
+	public void Validate()
+	{
+		if (Id.IsEmpty())
+			throw new ValidationException("Field Id is empty");
+
+		if (!Id.IsGuid())
+			throw new ValidationException("The value in the field Id is not a unique identifier");
+
+		if (FIO.IsEmpty())
+			throw new ValidationException("Field FIO is empty");
+
+		if (PhoneNumber.IsEmpty())
+			throw new ValidationException("Field PhoneNumber is empty");
+
+		if (!Regex.IsMatch(PhoneNumber, @"^((8|\+7)[\- ]?)?(\(?\d{3}\)?[\- ]?)?[\d\- ]{7,10}$"))
+			throw new ValidationException("Field PhoneNumber is not a phone number");
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/ManufacturerDataModel.cs

@@ -0,0 +1,30 @@
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.Infrastructure;
+
+namespace CatHasPawsContratcs.DataModels;
+
+public class ManufacturerDataModel(string id, string manufacturerName, string? prevManufacturerName, string? prevPrevManufacturerName) : IValidation
+{
+	public string Id { get; private set; } = id;
+
+	public string ManufacturerName { get; private set; } = manufacturerName;
+
+	public string? PrevManufacturerName { get; private set; } = prevManufacturerName;
+
+	public string? PrevPrevManufacturerName { get; private set; } = prevPrevManufacturerName;
+
+	public ManufacturerDataModel(string id, string manufacturerName) : this(id, manufacturerName, null, null) { }
+
+	public void Validate()
+	{
+		if (Id.IsEmpty())
+			throw new ValidationException("Field Id is empty");
+
+		if (!Id.IsGuid())
+			throw new ValidationException("The value in the field Id is not a unique identifier");
+
+		if (ManufacturerName.IsEmpty())
+			throw new ValidationException("Field ManufacturerName is empty");
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/PostDataModel.cs

@@ -0,0 +1,35 @@
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.Infrastructure;
+
+namespace CatHasPawsContratcs.DataModels;
+
+public class PostDataModel(string postId, string postName, PostType postType, double salary) : IValidation
+{
+	public string Id { get; private set; } = postId;
+
+	public string PostName { get; private set; } = postName;
+
+	public PostType PostType { get; private set; } = postType;
+
+	public double Salary { get; private set; } = salary;
+
+	public void Validate()
+	{
+		if (Id.IsEmpty())
+			throw new ValidationException("Field Id is empty");
+
+		if (!Id.IsGuid())
+			throw new ValidationException("The value in the field Id is not a unique identifier");
+
+		if (PostName.IsEmpty())
+			throw new ValidationException("Field PostName is empty");
+
+		if (PostType == PostType.None)
+			throw new ValidationException("Field PostType is empty");
+
+		if (Salary <= 0)
+			throw new ValidationException("Field Salary is empty");
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/ProductDataModel.cs

@@ -0,0 +1,56 @@
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.Infrastructure;
+
+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;
+
+	public ProductType ProductType { get; private set; } = productType;
+
+	public string ManufacturerId { get; private set; } = manufacturerId;
+
+	public double Price { get; private set; } = price;
+
+	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())
+			throw new ValidationException("Field Id is empty");
+
+		if (!Id.IsGuid())
+			throw new ValidationException("The value in the field Id is not a unique identifier");
+
+		if (ProductName.IsEmpty())
+			throw new ValidationException("Field ProductName is empty");
+
+		if (ProductType == ProductType.None)
+			throw new ValidationException("Field ProductType is empty");
+
+		if (ManufacturerId.IsEmpty())
+			throw new ValidationException("Field ManufacturerId is empty");
+
+		if (!ManufacturerId.IsGuid())
+			throw new ValidationException("The value in the field ManufacturerId is not a unique identifier");
+
+		if (Price <= 0)
+			throw new ValidationException("Field Price is less than or equal to 0");
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/ProductHistoryDataModel.cs

@@ -0,0 +1,36 @@
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.Infrastructure;
+
+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())
+			throw new ValidationException("Field ProductId is empty");
+
+		if (!ProductId.IsGuid())
+			throw new ValidationException("The value in the field ProductId is not a unique identifier");
+
+		if (OldPrice <= 0)
+			throw new ValidationException("Field OldPrice is less than or equal to 0");
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/SalaryDataModel.cs

@@ -0,0 +1,26 @@
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.Infrastructure;
+
+namespace CatHasPawsContratcs.DataModels;
+
+public class SalaryDataModel(string workerId, DateTime salaryDate, double workerSalary) : IValidation
+{
+	public string WorkerId { get; private set; } = workerId;
+
+	public DateTime SalaryDate { get; private set; } = salaryDate;
+
+	public double Salary { get; private set; } = workerSalary;
+
+	public void Validate()
+	{
+		if (WorkerId.IsEmpty())
+			throw new ValidationException("Field WorkerId is empty");
+
+		if (!WorkerId.IsGuid())
+			throw new ValidationException("The value in the field WorkerId is not a unique identifier");
+
+		if (Salary <= 0)
+			throw new ValidationException("Field Salary is less than or equal to 0");
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/SaleDataModel.cs

@@ -0,0 +1,102 @@
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.Infrastructure;
+
+namespace CatHasPawsContratcs.DataModels;
+
+public class SaleDataModel : IValidation
+{
+	private readonly BuyerDataModel? _buyer;
+
+	private readonly WorkerDataModel? _worker;
+
+	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; }
+
+	public DiscountType DiscountType { get; private set; }
+
+	public double Discount { get; private set; }
+
+	public bool IsCancel { get; private set; }
+
+	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()
+	{
+		if (Id.IsEmpty())
+			throw new ValidationException("Field Id is empty");
+
+		if (!Id.IsGuid())
+			throw new ValidationException("The value in the field Id is not a unique identifier");
+
+		if (WorkerId.IsEmpty())
+			throw new ValidationException("Field WorkerId is empty");
+
+		if (!WorkerId.IsGuid())
+			throw new ValidationException("The value in the field WorkerId is not a unique identifier");
+
+		if (!BuyerId?.IsGuid() ?? !BuyerId?.IsEmpty() ?? false)
+			throw new ValidationException("The value in the field BuyerId is not a unique identifier");
+
+		if (Sum <= 0)
+			throw new ValidationException("Field Sum is less than or equal to 0");
+
+		if ((Products?.Count ?? 0) == 0)
+			throw new ValidationException("The sale must include products");
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/DataModels/SaleProductDataModel.cs

@@ -0,0 +1,46 @@
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.Infrastructure;
+
+namespace CatHasPawsContratcs.DataModels;
+
+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())
+			throw new ValidationException("Field SaleId is empty");
+
+		if (!SaleId.IsGuid())
+			throw new ValidationException("The value in the field SaleId is not a unique identifier");
+
+		if (ProductId.IsEmpty())
+			throw new ValidationException("Field ProductId is empty");
+
+		if (!ProductId.IsGuid())
+			throw new ValidationException("The value in the field ProductId is not a unique identifier");
+
+		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

@@ -0,0 +1,58 @@
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.Extensions;
+using CatHasPawsContratcs.Infrastructure;
+
+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;
+
+	public string PostId { get; private set; } = postId;
+
+	public DateTime BirthDate { get; private set; } = birthDate;
+
+	public DateTime EmploymentDate { get; private set; } = employmentDate;
+
+	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())
+			throw new ValidationException("Field Id is empty");
+
+		if (!Id.IsGuid())
+			throw new ValidationException("The value in the field Id is not a unique identifier");
+
+		if (FIO.IsEmpty())
+			throw new ValidationException("Field FIO is empty");
+
+		if (PostId.IsEmpty())
+			throw new ValidationException("Field PostId is empty");
+
+		if (!PostId.IsGuid())
+			throw new ValidationException("The value in the field PostId is not a unique identifier");
+
+		if (BirthDate.Date > DateTime.Now.AddYears(-16).Date)
+			throw new ValidationException($"Minors cannot be hired (BirthDate = {BirthDate.ToShortDateString()})");
+
+		if (EmploymentDate.Date < BirthDate.Date)
+			throw new ValidationException("The date of employment cannot be less than the date of birth");
+
+		if ((EmploymentDate - BirthDate).TotalDays / 365 < 16) // EmploymentDate.Year - BirthDate.Year
+			throw new ValidationException($"Minors cannot be hired (EmploymentDate - {EmploymentDate.ToShortDateString()}, BirthDate - {BirthDate.ToShortDateString()})");
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/Enums/DiscountType.cs

@@ -0,0 +1,10 @@
+namespace CatHasPawsContratcs.Enums;
+
+[Flags]
+public enum DiscountType
+{
+	None = 0,
+	OnSale = 1,
+	RegularCustomer = 2,
+	Certificate = 4
+}

TheCatHasPawsProject/CatHasPawsContratcs/Enums/PostType.cs

@@ -0,0 +1,9 @@
+namespace CatHasPawsContratcs.Enums;
+
+public enum PostType
+{
+	None = 0,
+	Supervisor = 1,
+	CashierConsultant = 2,
+	Assistant = 3
+}

TheCatHasPawsProject/CatHasPawsContratcs/Enums/ProductType.cs

@@ -0,0 +1,9 @@
+namespace CatHasPawsContratcs.Enums;
+
+public enum ProductType
+{
+	None = 0,
+	Feed = 1,
+	Toy = 2,
+	Accessory = 3
+}

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/Exceptions/ElementExistsException.cs

@@ -0,0 +1,14 @@
+namespace CatHasPawsContratcs.Exceptions;
+
+public class ElementExistsException : Exception
+{
+	public string ParamName { get; private set; }
+
+	public string ParamValue { get; private set; }
+
+	public ElementExistsException(string paramName, string paramValue) : base($"There is already an element with value{paramValue} of parameter {paramName}")
+	{
+		ParamName = paramName;
+		ParamValue = paramValue;
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/Exceptions/ElementNotFoundException.cs

@@ -0,0 +1,11 @@
+namespace CatHasPawsContratcs.Exceptions;
+
+public class ElementNotFoundException : Exception
+{
+	public string Value { get; private set; }
+
+	public ElementNotFoundException(string value) : base($"Element not found at value = {value}")
+	{
+		Value = value;
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/Exceptions/IncorrectDatesException.cs

@@ -0,0 +1,6 @@
+namespace CatHasPawsContratcs.Exceptions;
+
+public class IncorrectDatesException : Exception
+{
+	public IncorrectDatesException(DateTime start, DateTime end) : base($"The end date must be later than the start date.. StartDate: {start:dd.MM.YYYY}. EndDate: {end:dd.MM.YYYY}") { }
+}

TheCatHasPawsProject/CatHasPawsContratcs/Exceptions/NullListException.cs

@@ -0,0 +1,6 @@
+namespace CatHasPawsContratcs.Exceptions;
+
+public class NullListException : Exception
+{
+	public NullListException() : base("The returned list is null") { }
+}

TheCatHasPawsProject/CatHasPawsContratcs/Exceptions/StorageException.cs

@@ -0,0 +1,6 @@
+namespace CatHasPawsContratcs.Exceptions;
+
+public class StorageException : Exception
+{
+	public StorageException(Exception ex) : base($"Error while working in storage: {ex.Message}", ex) { }
+}

TheCatHasPawsProject/CatHasPawsContratcs/Exceptions/ValidationException.cs

@@ -0,0 +1,5 @@
+namespace CatHasPawsContratcs.Exceptions;
+
+public class ValidationException(string message) : Exception(message)
+{
+}

TheCatHasPawsProject/CatHasPawsContratcs/Extensions/DateTimeExtensions.cs

@@ -0,0 +1,9 @@
+namespace CatHasPawsContratcs.Extensions;
+
+public static class DateTimeExtensions
+{
+	public static bool IsDateNotOlder(this DateTime date, DateTime olderDate)
+	{
+		return date >= olderDate;
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/Extensions/StringExtensions.cs

@@ -0,0 +1,14 @@
+namespace CatHasPawsContratcs.Extensions;
+
+public static class StringExtensions
+{
+	public static bool IsEmpty(this string str)
+	{
+		return string.IsNullOrWhiteSpace(str);
+	}
+
+	public static bool IsGuid(this string str)
+	{
+		return Guid.TryParse(str, out _);
+	}
+}

TheCatHasPawsProject/CatHasPawsContratcs/Infrastructure/IConfigurationDatabase.cs

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

TheCatHasPawsProject/CatHasPawsContratcs/Infrastructure/IValidation.cs

@@ -0,0 +1,6 @@
+namespace CatHasPawsContratcs.Infrastructure;
+
+public interface IValidation
+{
+	void Validate();
+}

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/IBuyerStorageContract.cs

@@ -0,0 +1,20 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.StoragesContracts;
+
+public interface IBuyerStorageContract
+{
+	List<BuyerDataModel> GetList();
+
+	BuyerDataModel? GetElementById(string id);
+
+	BuyerDataModel? GetElementByPhoneNumber(string phoneNumber);
+
+	BuyerDataModel? GetElementByFIO(string fio);
+
+	void AddElement(BuyerDataModel buyerDataModel);
+
+	void UpdElement(BuyerDataModel buyerDataModel);
+
+	void DelElement(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/StoragesContracts/IManufacturerStorageContract.cs

@@ -0,0 +1,20 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.StoragesContracts;
+
+public interface IManufacturerStorageContract
+{
+	List<ManufacturerDataModel> GetList();
+
+	ManufacturerDataModel? GetElementById(string id);
+
+	ManufacturerDataModel? GetElementByName(string name);
+
+	ManufacturerDataModel? GetElementByOldName(string name);
+
+	void AddElement(ManufacturerDataModel manufacturerDataModel);
+
+	void UpdElement(ManufacturerDataModel manufacturerDataModel);
+
+	void DelElement(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/StoragesContracts/IPostStorageContract.cs

@@ -0,0 +1,22 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.StoragesContracts;
+
+public interface IPostStorageContract
+{
+	List<PostDataModel> GetList();
+
+	List<PostDataModel> GetPostWithHistory(string postId);
+
+	PostDataModel? GetElementById(string id);
+
+	PostDataModel? GetElementByName(string name);
+
+	void AddElement(PostDataModel postDataModel);
+
+	void UpdElement(PostDataModel postDataModel);
+
+	void DelElement(string id);
+
+	void ResElement(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/StoragesContracts/IProductStorageContract.cs

@@ -0,0 +1,20 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.StoragesContracts;
+
+public interface IProductStorageContract
+{
+	List<ProductDataModel> GetList(bool onlyActive = true, string? manufacturerId = null);
+
+	List<ProductHistoryDataModel> GetHistoryByProductId(string productId);
+
+	ProductDataModel? GetElementById(string id);
+
+	ProductDataModel? GetElementByName(string name);
+
+	void AddElement(ProductDataModel productDataModel);
+
+	void UpdElement(ProductDataModel productDataModel);
+
+	void DelElement(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/StoragesContracts/ISalaryStorageContract.cs

@@ -0,0 +1,10 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.StoragesContracts;
+
+public interface ISalaryStorageContract
+{
+	List<SalaryDataModel> GetList(DateTime startDate, DateTime endDate, string? workerId = null);
+
+	void AddElement(SalaryDataModel salaryDataModel);
+}

TheCatHasPawsProject/CatHasPawsContratcs/StoragesContracts/ISaleStorageContract.cs

@@ -0,0 +1,14 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.StoragesContracts;
+
+public interface ISaleStorageContract
+{
+	List<SaleDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? workerId = null, string? buyerId = null, string? productId = null);
+
+	SaleDataModel? GetElementById(string id);
+
+	void AddElement(SaleDataModel saleDataModel);
+
+	void DelElement(string id);
+}

TheCatHasPawsProject/CatHasPawsContratcs/StoragesContracts/IWorkerStorageContract.cs

@@ -0,0 +1,18 @@
+using CatHasPawsContratcs.DataModels;
+
+namespace CatHasPawsContratcs.StoragesContracts;
+
+public interface IWorkerStorageContract
+{
+	List<WorkerDataModel> GetList(bool onlyActive = true, string? postId = null, DateTime? fromBirthDate = null, DateTime? toBirthDate = null, DateTime? fromEmploymentDate = null, DateTime? toEmploymentDate = null);
+
+	WorkerDataModel? GetElementById(string id);
+
+	WorkerDataModel? GetElementByFIO(string fio);
+
+	void AddElement(WorkerDataModel workerDataModel);
+
+	void UpdElement(WorkerDataModel workerDataModel);
+
+	void DelElement(string id);
+}

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/BuyerBusinessLogicContractTests.cs

@@ -0,0 +1,350 @@
+using CatHasPawsBusinessLogic.Implementations;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+
+namespace CatHasPawsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class BuyerBusinessLogicContractTests
+{
+	private BuyerBusinessLogicContract _buyerBusinessLogicContract;
+	private Mock<IBuyerStorageContract> _buyerStorageContract;
+
+	[OneTimeSetUp]
+	public void OneTimeSetUp()
+	{
+		_buyerStorageContract = new Mock<IBuyerStorageContract>();
+		_buyerBusinessLogicContract = new BuyerBusinessLogicContract(_buyerStorageContract.Object, new Mock<ILogger>().Object);
+	}
+
+	[SetUp]
+	public void SetUp()
+	{
+		_buyerStorageContract.Reset();
+	}
+
+	[Test]
+	public void GetAllBuyers_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var listOriginal = new List<BuyerDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), "fio 1", "+7-111-111-11-11", 0),
+			new(Guid.NewGuid().ToString(), "fio 2", "+7-555-444-33-23", 10),
+			new(Guid.NewGuid().ToString(), "fio 3", "+7-777-777-7777", 0),
+		};
+		_buyerStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
+		//Act
+		var list = _buyerBusinessLogicContract.GetAllBuyers();
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.EquivalentTo(listOriginal));
+	}
+
+	[Test]
+	public void GetAllBuyers_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_buyerStorageContract.Setup(x => x.GetList()).Returns([]);
+		//Act
+		var list = _buyerBusinessLogicContract.GetAllBuyers();
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+		_buyerStorageContract.Verify(x => x.GetList(), Times.Once);
+	}
+
+	[Test]
+	public void GetAllBuyers_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.GetAllBuyers(), Throws.TypeOf<NullListException>());
+		_buyerStorageContract.Verify(x => x.GetList(), Times.Once);
+	}
+
+	[Test]
+	public void GetAllBuyers_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_buyerStorageContract.Setup(x => x.GetList()).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.GetAllBuyers(), Throws.TypeOf<StorageException>());
+		_buyerStorageContract.Verify(x => x.GetList(), Times.Once);
+	}
+
+	[Test]
+	public void GetBuyerByData_GetById_ReturnRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var record = new BuyerDataModel(id, "fio", "+7-111-111-11-11", 0);
+		_buyerStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+		//Act
+		var element = _buyerBusinessLogicContract.GetBuyerByData(id);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.Id, Is.EqualTo(id));
+		_buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetBuyerByData_GetByFio_ReturnRecord_Test()
+	{
+		//Arrange
+		var fio = "fio";
+		var record = new BuyerDataModel(Guid.NewGuid().ToString(), fio, "+7-111-111-11-11", 0);
+		_buyerStorageContract.Setup(x => x.GetElementByFIO(fio)).Returns(record);
+		//Act
+		var element = _buyerBusinessLogicContract.GetBuyerByData(fio);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.FIO, Is.EqualTo(fio));
+		_buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetBuyerByData_GetByPhoneNumber_ReturnRecord_Test()
+	{
+		//Arrange
+		var phoneNumber = "+7-111-111-11-11";
+		var record = new BuyerDataModel(Guid.NewGuid().ToString(), "fio", phoneNumber, 0);
+		_buyerStorageContract.Setup(x => x.GetElementByPhoneNumber(phoneNumber)).Returns(record);
+		//Act
+		var element = _buyerBusinessLogicContract.GetBuyerByData(phoneNumber);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.PhoneNumber, Is.EqualTo(phoneNumber));
+		_buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetBuyerByData_EmptyData_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+		_buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Never);
+		_buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetBuyerByData_GetById_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+		_buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Never);
+		_buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetBuyerByData_GetByFio_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData("fio"), Throws.TypeOf<ElementNotFoundException>());
+		_buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+		_buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+		_buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetBuyerByData_GetByPhoneNumber_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData("+7-111-111-11-12"), Throws.TypeOf<ElementNotFoundException>());
+		_buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+		_buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+		_buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetBuyerByData_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_buyerStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		_buyerStorageContract.Setup(x => x.GetElementByFIO(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		_buyerStorageContract.Setup(x => x.GetElementByPhoneNumber(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData("fio"), Throws.TypeOf<StorageException>());
+		Assert.That(() => _buyerBusinessLogicContract.GetBuyerByData("+7-111-111-11-12"), Throws.TypeOf<StorageException>());
+		_buyerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+		_buyerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+		_buyerStorageContract.Verify(x => x.GetElementByPhoneNumber(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertBuyer_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		var record = new BuyerDataModel(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 10);
+		_buyerStorageContract.Setup(x => x.AddElement(It.IsAny<BuyerDataModel>()))
+			.Callback((BuyerDataModel x) =>
+			{
+				flag = x.Id == record.Id && x.FIO == record.FIO &&
+					x.PhoneNumber == record.PhoneNumber && x.DiscountSize == record.DiscountSize;
+			});
+		//Act
+		_buyerBusinessLogicContract.InsertBuyer(record);
+		//Assert
+		_buyerStorageContract.Verify(x => x.AddElement(It.IsAny<BuyerDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void InsertBuyer_RecordWithExistsData_ThrowException_Test()
+	{
+		//Arrange
+		_buyerStorageContract.Setup(x => x.AddElement(It.IsAny<BuyerDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.InsertBuyer(new(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0)), Throws.TypeOf<ElementExistsException>());
+		_buyerStorageContract.Verify(x => x.AddElement(It.IsAny<BuyerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertBuyer_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.InsertBuyer(null), Throws.TypeOf<ArgumentNullException>());
+		_buyerStorageContract.Verify(x => x.AddElement(It.IsAny<BuyerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertBuyer_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.InsertBuyer(new BuyerDataModel("id", "fio", "+7-111-111-11-11", 10)), Throws.TypeOf<ValidationException>());
+		_buyerStorageContract.Verify(x => x.AddElement(It.IsAny<BuyerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertBuyer_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_buyerStorageContract.Setup(x => x.AddElement(It.IsAny<BuyerDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.InsertBuyer(new(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0)), Throws.TypeOf<StorageException>());
+		_buyerStorageContract.Verify(x => x.AddElement(It.IsAny<BuyerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateBuyer_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		var record = new BuyerDataModel(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0);
+		_buyerStorageContract.Setup(x => x.UpdElement(It.IsAny<BuyerDataModel>()))
+			.Callback((BuyerDataModel x) =>
+			{
+				flag = x.Id == record.Id && x.FIO == record.FIO &&
+					x.PhoneNumber == record.PhoneNumber && x.DiscountSize == record.DiscountSize;
+			});
+		//Act
+		_buyerBusinessLogicContract.UpdateBuyer(record);
+		//Assert
+		_buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void UpdateBuyer_RecordWithIncorrectData_ThrowException_Test()
+	{
+		//Arrange
+		_buyerStorageContract.Setup(x => x.UpdElement(It.IsAny<BuyerDataModel>())).Throws(new ElementNotFoundException(""));
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.UpdateBuyer(new(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0)), Throws.TypeOf<ElementNotFoundException>());
+		_buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateBuyer_RecordWithExistsData_ThrowException_Test()
+	{
+		//Arrange
+		_buyerStorageContract.Setup(x => x.UpdElement(It.IsAny<BuyerDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.UpdateBuyer(new(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0)), Throws.TypeOf<ElementExistsException>());
+		_buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateBuyer_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.UpdateBuyer(null), Throws.TypeOf<ArgumentNullException>());
+		_buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void UpdateBuyer_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.UpdateBuyer(new BuyerDataModel("id", "fio", "+7-111-111-11-11", 10)), Throws.TypeOf<ValidationException>());
+		_buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void UpdateBuyer_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_buyerStorageContract.Setup(x => x.UpdElement(It.IsAny<BuyerDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.UpdateBuyer(new(Guid.NewGuid().ToString(), "fio", "+7-111-111-11-11", 0)), Throws.TypeOf<StorageException>());
+		_buyerStorageContract.Verify(x => x.UpdElement(It.IsAny<BuyerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void DeleteBuyer_CorrectRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var flag = false;
+		_buyerStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+		//Act
+		_buyerBusinessLogicContract.DeleteBuyer(id);
+		//Assert
+		_buyerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void DeleteBuyer_RecordWithIncorrectId_ThrowException_Test()
+	{
+		//Arrange
+		_buyerStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(""));
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.DeleteBuyer(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_buyerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void DeleteBuyer_IdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.DeleteBuyer(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _buyerBusinessLogicContract.DeleteBuyer(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_buyerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void DeleteBuyer_IdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.DeleteBuyer("id"), Throws.TypeOf<ValidationException>());
+		_buyerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void DeleteBuyer_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_buyerStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _buyerBusinessLogicContract.DeleteBuyer(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_buyerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/BusinessLogicsContractsTests/ManufacturerBusinessLogicContractTests.cs

@@ -0,0 +1,349 @@
+using CatHasPawsBusinessLogic.Implementations;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+
+namespace CatHasPawsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class ManufacturerBusinessLogicContractTests
+{
+	private ManufacturerBusinessLogicContract _manufacturerBusinessLogicContract;
+	private Mock<IManufacturerStorageContract> _manufacturerStorageContract;
+
+	[OneTimeSetUp]
+	public void OneTimeSetUp()
+	{
+		_manufacturerStorageContract = new Mock<IManufacturerStorageContract>();
+		_manufacturerBusinessLogicContract = new ManufacturerBusinessLogicContract(_manufacturerStorageContract.Object, new Mock<ILogger>().Object);
+	}
+
+	[SetUp]
+	public void SetUp()
+	{
+		_manufacturerStorageContract.Reset();
+	}
+
+	[Test]
+	public void GetAllManufacturers_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var listOriginal = new List<ManufacturerDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), "name 1", null, null),
+			new(Guid.NewGuid().ToString(), "name 2", null, null),
+			new(Guid.NewGuid().ToString(), "name 3", null, null),
+		};
+		_manufacturerStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
+		//Act
+		var list = _manufacturerBusinessLogicContract.GetAllManufacturers();
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.EquivalentTo(listOriginal));
+	}
+
+	[Test]
+	public void GetAllManufacturers_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_manufacturerStorageContract.Setup(x => x.GetList()).Returns([]);
+		//Act
+		var list = _manufacturerBusinessLogicContract.GetAllManufacturers();
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+		_manufacturerStorageContract.Verify(x => x.GetList(), Times.Once);
+	}
+
+	[Test]
+	public void GetAllManufacturers_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.GetAllManufacturers(), Throws.TypeOf<NullListException>());
+		_manufacturerStorageContract.Verify(x => x.GetList(), Times.Once);
+	}
+
+	[Test]
+	public void GetAllManufacturers_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_manufacturerStorageContract.Setup(x => x.GetList()).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.GetAllManufacturers(), Throws.TypeOf<StorageException>());
+		_manufacturerStorageContract.Verify(x => x.GetList(), Times.Once);
+	}
+
+	[Test]
+	public void GetManufacturerByData_GetById_ReturnRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var record = new ManufacturerDataModel(id, "name", null, null);
+		_manufacturerStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+		//Act
+		var element = _manufacturerBusinessLogicContract.GetManufacturerByData(id);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.Id, Is.EqualTo(id));
+		_manufacturerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetManufacturerByData_GetByName_ReturnRecord_Test()
+	{
+		//Arrange
+		var manufacturerName = "name";
+		var record = new ManufacturerDataModel(Guid.NewGuid().ToString(), manufacturerName, null, null);
+		_manufacturerStorageContract.Setup(x => x.GetElementByName(manufacturerName)).Returns(record);
+		//Act
+		var element = _manufacturerBusinessLogicContract.GetManufacturerByData(manufacturerName);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.ManufacturerName, Is.EqualTo(manufacturerName));
+		_manufacturerStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetManufacturerByData_GetByOldName_ReturnRecord_Test()
+	{
+		//Arrange
+		var manufacturerOldName = "name before";
+		var record = new ManufacturerDataModel(Guid.NewGuid().ToString(), "name", manufacturerOldName, null);
+		_manufacturerStorageContract.Setup(x => x.GetElementByOldName(manufacturerOldName)).Returns(record);
+		//Act
+		var element = _manufacturerBusinessLogicContract.GetManufacturerByData(manufacturerOldName);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.PrevManufacturerName, Is.EqualTo(manufacturerOldName));
+		_manufacturerStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+		_manufacturerStorageContract.Verify(x => x.GetElementByOldName(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetManufacturerByData_EmptyData_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.GetManufacturerByData(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _manufacturerBusinessLogicContract.GetManufacturerByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_manufacturerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+		_manufacturerStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+		_manufacturerStorageContract.Verify(x => x.GetElementByOldName(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetManufacturerByData__GetById_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.GetManufacturerByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_manufacturerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+		_manufacturerStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+		_manufacturerStorageContract.Verify(x => x.GetElementByOldName(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetManufacturerByData_GetByNameOrOldName_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.GetManufacturerByData("name"), Throws.TypeOf<ElementNotFoundException>());
+		_manufacturerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+		_manufacturerStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+		_manufacturerStorageContract.Verify(x => x.GetElementByOldName(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetManufacturerByData_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_manufacturerStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		_manufacturerStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.GetManufacturerByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		Assert.That(() => _manufacturerBusinessLogicContract.GetManufacturerByData("name"), Throws.TypeOf<StorageException>());
+		_manufacturerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+		_manufacturerStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+		_manufacturerStorageContract.Verify(x => x.GetElementByOldName(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetManufacturerByData_GetByOldName_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_manufacturerStorageContract.Setup(x => x.GetElementByOldName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.GetManufacturerByData("name"), Throws.TypeOf<StorageException>());
+		_manufacturerStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+		_manufacturerStorageContract.Verify(x => x.GetElementByOldName(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertManufacturer_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		var record = new ManufacturerDataModel(Guid.NewGuid().ToString(), "name", null, null);
+		_manufacturerStorageContract.Setup(x => x.AddElement(It.IsAny<ManufacturerDataModel>()))
+			.Callback((ManufacturerDataModel x) =>
+			{
+				flag = x.Id == record.Id && x.ManufacturerName == record.ManufacturerName;
+			});
+		//Act
+		_manufacturerBusinessLogicContract.InsertManufacturer(record);
+		//Assert
+		_manufacturerStorageContract.Verify(x => x.AddElement(It.IsAny<ManufacturerDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void InsertManufacturer_RecordWithExistsData_ThrowException_Test()
+	{
+		//Arrange
+		_manufacturerStorageContract.Setup(x => x.AddElement(It.IsAny<ManufacturerDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.InsertManufacturer(new(Guid.NewGuid().ToString(), "name", null, null)), Throws.TypeOf<ElementExistsException>());
+		_manufacturerStorageContract.Verify(x => x.AddElement(It.IsAny<ManufacturerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertManufacturer_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.InsertManufacturer(null), Throws.TypeOf<ArgumentNullException>());
+		_manufacturerStorageContract.Verify(x => x.AddElement(It.IsAny<ManufacturerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertManufacturer_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.InsertManufacturer(new ManufacturerDataModel("id", "name", null, null)), Throws.TypeOf<ValidationException>());
+		_manufacturerStorageContract.Verify(x => x.AddElement(It.IsAny<ManufacturerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertManufacturer_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_manufacturerStorageContract.Setup(x => x.AddElement(It.IsAny<ManufacturerDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.InsertManufacturer(new(Guid.NewGuid().ToString(), "name", null, null)), Throws.TypeOf<StorageException>());
+		_manufacturerStorageContract.Verify(x => x.AddElement(It.IsAny<ManufacturerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateManufacturer_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		var record = new ManufacturerDataModel(Guid.NewGuid().ToString(), "name", null, null);
+		_manufacturerStorageContract.Setup(x => x.UpdElement(It.IsAny<ManufacturerDataModel>()))
+			.Callback((ManufacturerDataModel x) =>
+			{
+				flag = x.Id == record.Id && x.ManufacturerName == record.ManufacturerName;
+			});
+		//Act
+		_manufacturerBusinessLogicContract.UpdateManufacturer(record);
+		//Assert
+		_manufacturerStorageContract.Verify(x => x.UpdElement(It.IsAny<ManufacturerDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void UpdateManufacturer_RecordWithIncorrectData_ThrowException_Test()
+	{
+		//Arrange
+		_manufacturerStorageContract.Setup(x => x.UpdElement(It.IsAny<ManufacturerDataModel>())).Throws(new ElementNotFoundException(""));
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.UpdateManufacturer(new(Guid.NewGuid().ToString(), "name", null, null)), Throws.TypeOf<ElementNotFoundException>());
+		_manufacturerStorageContract.Verify(x => x.UpdElement(It.IsAny<ManufacturerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateManufacturer_RecordWithExistsData_ThrowException_Test()
+	{
+		//Arrange
+		_manufacturerStorageContract.Setup(x => x.UpdElement(It.IsAny<ManufacturerDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.UpdateManufacturer(new(Guid.NewGuid().ToString(), "name", null, null)), Throws.TypeOf<ElementExistsException>());
+		_manufacturerStorageContract.Verify(x => x.UpdElement(It.IsAny<ManufacturerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateManufacturer_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.UpdateManufacturer(null), Throws.TypeOf<ArgumentNullException>());
+		_manufacturerStorageContract.Verify(x => x.UpdElement(It.IsAny<ManufacturerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void UpdateManufacturer_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.UpdateManufacturer(new ManufacturerDataModel("id", "name", null, null)), Throws.TypeOf<ValidationException>());
+		_manufacturerStorageContract.Verify(x => x.UpdElement(It.IsAny<ManufacturerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void UpdateManufacturer_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_manufacturerStorageContract.Setup(x => x.UpdElement(It.IsAny<ManufacturerDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.UpdateManufacturer(new(Guid.NewGuid().ToString(), "name", null, null)), Throws.TypeOf<StorageException>());
+		_manufacturerStorageContract.Verify(x => x.UpdElement(It.IsAny<ManufacturerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void DeleteManufacturer_CorrectRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var flag = false;
+		_manufacturerStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+		//Act
+		_manufacturerBusinessLogicContract.DeleteManufacturer(id);
+		//Assert
+		_manufacturerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void DeleteManufacturer_RecordWithIncorrectId_ThrowException_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		_manufacturerStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.DeleteManufacturer(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_manufacturerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void DeleteManufacturer_IdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.DeleteManufacturer(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _manufacturerBusinessLogicContract.DeleteManufacturer(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_manufacturerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void DeleteManufacturer_IdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.DeleteManufacturer("id"), Throws.TypeOf<ValidationException>());
+		_manufacturerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void DeleteManufacturer_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_manufacturerStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _manufacturerBusinessLogicContract.DeleteManufacturer(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_manufacturerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/BusinessLogicsContractsTests/PostBusinessLogicContractTests.cs

@@ -0,0 +1,444 @@
+using CatHasPawsBusinessLogic.Implementations;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+
+namespace CatHasPawsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class PostBusinessLogicContractTests
+{
+	private PostBusinessLogicContract _postBusinessLogicContract;
+	private Mock<IPostStorageContract> _postStorageContract;
+
+	[OneTimeSetUp]
+	public void OneTimeSetUp()
+	{
+		_postStorageContract = new Mock<IPostStorageContract>();
+		_postBusinessLogicContract = new PostBusinessLogicContract(_postStorageContract.Object, new Mock<ILogger>().Object);
+	}
+
+	[SetUp]
+	public void SetUp()
+	{
+		_postStorageContract.Reset();
+	}
+
+	[Test]
+	public void GetAllPosts_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var listOriginal = new List<PostDataModel>()
+		{
+			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()).Returns(listOriginal);
+		//Act
+		var list = _postBusinessLogicContract.GetAllPosts();
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(list, Is.Not.Null);
+			Assert.That(list, Is.EquivalentTo(listOriginal));
+		});
+		_postStorageContract.Verify(x => x.GetList(), Times.Once);
+	}
+
+	[Test]
+	public void GetAllPosts_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_postStorageContract.Setup(x => x.GetList()).Returns([]);
+		//Act
+		var list = _postBusinessLogicContract.GetAllPosts();
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(list, Is.Not.Null);
+			Assert.That(list, Has.Count.EqualTo(0));
+		});
+	}
+
+	[Test]
+	public void GetAllPosts_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		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()).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.GetAllPosts(), Throws.TypeOf<StorageException>());
+		_postStorageContract.Verify(x => x.GetList(), Times.Once);
+	}
+
+	[Test]
+	public void GetAllDataOfPost_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var postId = Guid.NewGuid().ToString();
+		var listOriginal = new List<PostDataModel>()
+		{
+			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
+		var list = _postBusinessLogicContract.GetAllDataOfPost(postId);
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(2));
+		_postStorageContract.Verify(x => x.GetPostWithHistory(postId), Times.Once);
+	}
+
+	[Test]
+	public void GetAllDataOfPost_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_postStorageContract.Setup(x => x.GetPostWithHistory(It.IsAny<string>())).Returns([]);
+		//Act
+		var list = _postBusinessLogicContract.GetAllDataOfPost(Guid.NewGuid().ToString());
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+		_postStorageContract.Verify(x => x.GetPostWithHistory(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllDataOfPost_PostIdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.GetAllDataOfPost(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _postBusinessLogicContract.GetAllDataOfPost(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_postStorageContract.Verify(x => x.GetPostWithHistory(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllDataOfPost_PostIdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.GetAllDataOfPost("id"), Throws.TypeOf<ValidationException>());
+		_postStorageContract.Verify(x => x.GetPostWithHistory(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllDataOfPost_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.GetAllDataOfPost(Guid.NewGuid().ToString()), Throws.TypeOf<NullListException>());
+		_postStorageContract.Verify(x => x.GetPostWithHistory(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllDataOfPost_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_postStorageContract.Setup(x => x.GetPostWithHistory(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.GetAllDataOfPost(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_postStorageContract.Verify(x => x.GetPostWithHistory(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetPostByData_GetById_ReturnRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var record = new PostDataModel(id, "name", PostType.Assistant, 10);
+		_postStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+		//Act
+		var element = _postBusinessLogicContract.GetPostByData(id);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.Id, Is.EqualTo(id));
+		_postStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetPostByData_GetByName_ReturnRecord_Test()
+	{
+		//Arrange
+		var postName = "name";
+		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);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.PostName, Is.EqualTo(postName));
+		_postStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetPostByData_EmptyData_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.GetPostByData(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _postBusinessLogicContract.GetPostByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_postStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+		_postStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetPostByData_GetById_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.GetPostByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_postStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+		_postStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetPostByData_GetByName_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.GetPostByData("name"), Throws.TypeOf<ElementNotFoundException>());
+		_postStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+		_postStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetPostByData_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		_postStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.GetPostByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		Assert.That(() => _postBusinessLogicContract.GetPostByData("name"), Throws.TypeOf<StorageException>());
+		_postStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+		_postStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertPost_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		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;
+			});
+		//Act
+		_postBusinessLogicContract.InsertPost(record);
+		//Assert
+		_postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void InsertPost_RecordWithExistsData_ThrowException_Test()
+	{
+		//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)), Throws.TypeOf<ElementExistsException>());
+		_postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertPost_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.InsertPost(null), Throws.TypeOf<ArgumentNullException>());
+		_postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertPost_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.InsertPost(new PostDataModel("id", "name", PostType.Supervisor, 10)), Throws.TypeOf<ValidationException>());
+		_postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertPost_StorageThrowError_ThrowException_Test()
+	{
+		//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)), Throws.TypeOf<StorageException>());
+		_postStorageContract.Verify(x => x.AddElement(It.IsAny<PostDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdatePost_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		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;
+			});
+		//Act
+		_postBusinessLogicContract.UpdatePost(record);
+		//Assert
+		_postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void UpdatePost_RecordWithIncorrectData_ThrowException_Test()
+	{
+		//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)), Throws.TypeOf<ElementNotFoundException>());
+		_postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdatePost_RecordWithExistsData_ThrowException_Test()
+	{
+		//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)), Throws.TypeOf<ElementExistsException>());
+		_postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdatePost_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.UpdatePost(null), Throws.TypeOf<ArgumentNullException>());
+		_postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void UpdatePost_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.UpdatePost(new PostDataModel("id", "name", PostType.Supervisor, 10)), Throws.TypeOf<ValidationException>());
+		_postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void UpdatePost_StorageThrowError_ThrowException_Test()
+	{
+		//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)), Throws.TypeOf<StorageException>());
+		_postStorageContract.Verify(x => x.UpdElement(It.IsAny<PostDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void DeletePost_CorrectRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var flag = false;
+		_postStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+		//Act
+		_postBusinessLogicContract.DeletePost(id);
+		//Assert
+		_postStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void DeletePost_RecordWithIncorrectId_ThrowException_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		_postStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.DeletePost(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_postStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void DeletePost_IdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.DeletePost(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _postBusinessLogicContract.DeletePost(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_postStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void DeletePost_IdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.DeletePost("id"), Throws.TypeOf<ValidationException>());
+		_postStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void DeletePost_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_postStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.DeletePost(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_postStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void RestorePost_CorrectRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var flag = false;
+		_postStorageContract.Setup(x => x.ResElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+		//Act
+		_postBusinessLogicContract.RestorePost(id);
+		//Assert
+		_postStorageContract.Verify(x => x.ResElement(It.IsAny<string>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void RestorePost_RecordWithIncorrectId_ThrowException_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		_postStorageContract.Setup(x => x.ResElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.RestorePost(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_postStorageContract.Verify(x => x.ResElement(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void RestorePost_IdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.RestorePost(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _postBusinessLogicContract.RestorePost(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_postStorageContract.Verify(x => x.ResElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void RestorePost_IdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.RestorePost("id"), Throws.TypeOf<ValidationException>());
+		_postStorageContract.Verify(x => x.ResElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void RestorePost_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_postStorageContract.Setup(x => x.ResElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _postBusinessLogicContract.RestorePost(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_postStorageContract.Verify(x => x.ResElement(It.IsAny<string>()), Times.Once);
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/BusinessLogicsContractsTests/ProductBusinessLogicContractTests.cs

@@ -0,0 +1,483 @@
+using CatHasPawsBusinessLogic.Implementations;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+
+namespace CatHasPawsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class ProductBusinessLogicContractTests
+{
+	private ProductBusinessLogicContract _productBusinessLogicContract;
+	private Mock<IProductStorageContract> _productStorageContract;
+
+	[OneTimeSetUp]
+	public void OneTimeSetUp()
+	{
+		_productStorageContract = new Mock<IProductStorageContract>();
+		_productBusinessLogicContract = new ProductBusinessLogicContract(_productStorageContract.Object, new Mock<ILogger>().Object);
+	}
+
+	[SetUp]
+	public void SetUp()
+	{
+		_productStorageContract.Reset();
+	}
+
+	[Test]
+	public void GetAllProducts_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var listOriginal = new List<ProductDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), "name 1", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false),
+			new(Guid.NewGuid().ToString(), "name 2", ProductType.Accessory, Guid.NewGuid().ToString(), 10, true),
+			new(Guid.NewGuid().ToString(), "name 3", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false),
+		};
+		_productStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Returns(listOriginal);
+		//Act
+		var listOnlyActive = _productBusinessLogicContract.GetAllProducts(true);
+		var list = _productBusinessLogicContract.GetAllProducts(false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+			Assert.That(list, Is.EquivalentTo(listOriginal));
+		});
+		_productStorageContract.Verify(x => x.GetList(true, null), Times.Once);
+		_productStorageContract.Verify(x => x.GetList(false, null), Times.Once);
+	}
+
+	[Test]
+	public void GetAllProducts_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Returns([]);
+		//Act
+		var listOnlyActive = _productBusinessLogicContract.GetAllProducts(true);
+		var list = _productBusinessLogicContract.GetAllProducts(false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+			Assert.That(list, Has.Count.EqualTo(0));
+		});
+		_productStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), null), Times.Exactly(2));
+	}
+
+	[Test]
+	public void GetAllProducts_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetAllProducts(It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+		_productStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllProducts_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetAllProducts(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+		_productStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllProductsByManufacturer_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var manufacturerId = Guid.NewGuid().ToString();
+		var listOriginal = new List<ProductDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), "name 1",ProductType.Accessory, Guid.NewGuid().ToString(), 10, false),
+			new(Guid.NewGuid().ToString(), "name 2", ProductType.Accessory, Guid.NewGuid().ToString(), 10, true),
+			new(Guid.NewGuid().ToString(), "name 3", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false),
+		};
+		_productStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Returns(listOriginal);
+		//Act
+		var listOnlyActive = _productBusinessLogicContract.GetAllProductsByManufacturer(manufacturerId, true);
+		var list = _productBusinessLogicContract.GetAllProductsByManufacturer(manufacturerId, false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+			Assert.That(list, Is.EquivalentTo(listOriginal));
+		});
+		_productStorageContract.Verify(x => x.GetList(true, manufacturerId), Times.Once);
+		_productStorageContract.Verify(x => x.GetList(false, manufacturerId), Times.Once);
+	}
+
+	[Test]
+	public void GetAllProductsByManufacturer_ReturnEmptyList_Test()
+	{
+		//Arrange
+		var manufacturerId = Guid.NewGuid().ToString();
+		_productStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Returns([]);
+		//Act
+		var listOnlyActive = _productBusinessLogicContract.GetAllProductsByManufacturer(manufacturerId, true);
+		var list = _productBusinessLogicContract.GetAllProductsByManufacturer(manufacturerId, false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+			Assert.That(list, Has.Count.EqualTo(0));
+		});
+		_productStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), manufacturerId), Times.Exactly(2));
+	}
+
+	[Test]
+	public void GetAllProductsByManufacturer_ManufacturerIdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetAllProductsByManufacturer(null, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _productBusinessLogicContract.GetAllProductsByManufacturer(string.Empty, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+		_productStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllProductsByManufacturer_ManufacturerIdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetAllProductsByManufacturer("manufacturerId", It.IsAny<bool>()), Throws.TypeOf<ValidationException>());
+		_productStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllProductsByManufacturer_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetAllProductsByManufacturer(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+		_productStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllProductsByManufacturer_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetAllProductsByManufacturer(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+		_productStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetProductHistoryByProduct_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var productId = Guid.NewGuid().ToString();
+		var listOriginal = new List<ProductHistoryDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), 10),
+			new(Guid.NewGuid().ToString(), 15),
+			new(Guid.NewGuid().ToString(), 10),
+		};
+		_productStorageContract.Setup(x => x.GetHistoryByProductId(It.IsAny<string>())).Returns(listOriginal);
+		//Act
+		var list = _productBusinessLogicContract.GetProductHistoryByProduct(productId);
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.EquivalentTo(listOriginal));
+		_productStorageContract.Verify(x => x.GetHistoryByProductId(productId), Times.Once);
+	}
+
+	[Test]
+	public void GetProductHistoryByProduct_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.GetHistoryByProductId(It.IsAny<string>())).Returns([]);
+		//Act
+		var list = _productBusinessLogicContract.GetProductHistoryByProduct(Guid.NewGuid().ToString());
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+		_productStorageContract.Verify(x => x.GetHistoryByProductId(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetProductHistoryByProduct_ProductIdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetProductHistoryByProduct(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _productBusinessLogicContract.GetProductHistoryByProduct(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_productStorageContract.Verify(x => x.GetHistoryByProductId(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetProductHistoryByProduct_ProductIdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetProductHistoryByProduct("productId"), Throws.TypeOf<ValidationException>());
+		_productStorageContract.Verify(x => x.GetHistoryByProductId(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetProductHistoryByProduct_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetProductHistoryByProduct(Guid.NewGuid().ToString()), Throws.TypeOf<NullListException>());
+		_productStorageContract.Verify(x => x.GetHistoryByProductId(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetProductHistoryByProduct_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.GetHistoryByProductId(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetProductHistoryByProduct(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_productStorageContract.Verify(x => x.GetHistoryByProductId(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetProductByData_GetById_ReturnRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var record = new ProductDataModel(id, "name", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false);
+		_productStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+		//Act
+		var element = _productBusinessLogicContract.GetProductByData(id);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.Id, Is.EqualTo(id));
+		_productStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetProductByData_GetByName_ReturnRecord_Test()
+	{
+		//Arrange
+		var name = "name";
+		var record = new ProductDataModel(Guid.NewGuid().ToString(), name, ProductType.Accessory, Guid.NewGuid().ToString(), 10, false);
+		_productStorageContract.Setup(x => x.GetElementByName(name)).Returns(record);
+		//Act
+		var element = _productBusinessLogicContract.GetProductByData(name);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.ProductName, Is.EqualTo(name));
+		_productStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetProductByData_EmptyData_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetProductByData(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _productBusinessLogicContract.GetProductByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_productStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+		_productStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetProductByData_GetById_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetProductByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_productStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetProductByData_GetByName_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetProductByData("name"), Throws.TypeOf<ElementNotFoundException>());
+		_productStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetProductByData_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		_productStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.GetProductByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		Assert.That(() => _productBusinessLogicContract.GetProductByData("name"), Throws.TypeOf<StorageException>());
+		_productStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+		_productStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertProduct_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		var record = new ProductDataModel(Guid.NewGuid().ToString(), "name", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false);
+		_productStorageContract.Setup(x => x.AddElement(It.IsAny<ProductDataModel>()))
+			.Callback((ProductDataModel x) =>
+			{
+				flag = x.Id == record.Id && x.ProductName == record.ProductName && x.ProductType == record.ProductType &&
+				x.ManufacturerId == record.ManufacturerId && x.Price == record.Price && x.IsDeleted == record.IsDeleted;
+			});
+		//Act
+		_productBusinessLogicContract.InsertProduct(record);
+		//Assert
+		_productStorageContract.Verify(x => x.AddElement(It.IsAny<ProductDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void InsertProduct_RecordWithExistsData_ThrowException_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.AddElement(It.IsAny<ProductDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.InsertProduct(new(Guid.NewGuid().ToString(), "name", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<ElementExistsException>());
+		_productStorageContract.Verify(x => x.AddElement(It.IsAny<ProductDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertProduct_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.InsertProduct(null), Throws.TypeOf<ArgumentNullException>());
+		_productStorageContract.Verify(x => x.AddElement(It.IsAny<ProductDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertProduct_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.InsertProduct(new ProductDataModel("id", "name", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<ValidationException>());
+		_productStorageContract.Verify(x => x.AddElement(It.IsAny<ProductDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertProduct_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.AddElement(It.IsAny<ProductDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.InsertProduct(new(Guid.NewGuid().ToString(), "name", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<StorageException>());
+		_productStorageContract.Verify(x => x.AddElement(It.IsAny<ProductDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateProduct_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		var record = new ProductDataModel(Guid.NewGuid().ToString(), "name", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false);
+		_productStorageContract.Setup(x => x.UpdElement(It.IsAny<ProductDataModel>()))
+			.Callback((ProductDataModel x) =>
+			{
+				flag = x.Id == record.Id && x.ProductName == record.ProductName && x.ProductType == record.ProductType &&
+				x.ManufacturerId == record.ManufacturerId && x.Price == record.Price && x.IsDeleted == record.IsDeleted;
+			});
+		//Act
+		_productBusinessLogicContract.UpdateProduct(record);
+		//Assert
+		_productStorageContract.Verify(x => x.UpdElement(It.IsAny<ProductDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void UpdateProduct_RecordWithIncorrectData_ThrowException_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.UpdElement(It.IsAny<ProductDataModel>())).Throws(new ElementNotFoundException(""));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.UpdateProduct(new(Guid.NewGuid().ToString(), "name", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<ElementNotFoundException>());
+		_productStorageContract.Verify(x => x.UpdElement(It.IsAny<ProductDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateProduct_RecordWithExistsData_ThrowException_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.UpdElement(It.IsAny<ProductDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.UpdateProduct(new(Guid.NewGuid().ToString(), "anme", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<ElementExistsException>());
+		_productStorageContract.Verify(x => x.UpdElement(It.IsAny<ProductDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateProduct_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.UpdateProduct(null), Throws.TypeOf<ArgumentNullException>());
+		_productStorageContract.Verify(x => x.UpdElement(It.IsAny<ProductDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void UpdateProduct_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.UpdateProduct(new ProductDataModel("id", "name", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<ValidationException>());
+		_productStorageContract.Verify(x => x.UpdElement(It.IsAny<ProductDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void UpdateProduct_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.UpdElement(It.IsAny<ProductDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.UpdateProduct(new(Guid.NewGuid().ToString(), "name", ProductType.Accessory, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<StorageException>());
+		_productStorageContract.Verify(x => x.UpdElement(It.IsAny<ProductDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void DeleteProduct_CorrectRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var flag = false;
+		_productStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+		//Act
+		_productBusinessLogicContract.DeleteProduct(id);
+		//Assert
+		_productStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void DeleteProduct_RecordWithIncorrectId_ThrowException_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		_productStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.DeleteProduct(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_productStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void DeleteProduct_IdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.DeleteProduct(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _productBusinessLogicContract.DeleteProduct(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_productStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void DeleteProduct_IdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.DeleteProduct("id"), Throws.TypeOf<ValidationException>());
+		_productStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void DeleteProduct_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_productStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _productBusinessLogicContract.DeleteProduct(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_productStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/BusinessLogicsContractsTests/SalaryBusinessLogicContractTests.cs

@@ -0,0 +1,346 @@
+using CatHasPawsBusinessLogic.Implementations;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+
+namespace CatHasPawsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class SalaryBusinessLogicContractTests
+{
+	private SalaryBusinessLogicContract _salaryBusinessLogicContract;
+	private Mock<ISalaryStorageContract> _salaryStorageContract;
+	private Mock<ISaleStorageContract> _saleStorageContract;
+	private Mock<IPostStorageContract> _postStorageContract;
+	private Mock<IWorkerStorageContract> _workerStorageContract;
+
+	[OneTimeSetUp]
+	public void OneTimeSetUp()
+	{
+		_salaryStorageContract = new Mock<ISalaryStorageContract>();
+		_saleStorageContract = new Mock<ISaleStorageContract>();
+		_postStorageContract = new Mock<IPostStorageContract>();
+		_workerStorageContract = new Mock<IWorkerStorageContract>();
+		_salaryBusinessLogicContract = new SalaryBusinessLogicContract(_salaryStorageContract.Object,
+			_saleStorageContract.Object, _postStorageContract.Object, _workerStorageContract.Object, new Mock<ILogger>().Object);
+	}
+
+	[SetUp]
+	public void SetUp()
+	{
+		_salaryStorageContract.Reset();
+		_saleStorageContract.Reset();
+		_postStorageContract.Reset();
+		_workerStorageContract.Reset();
+	}
+
+	[Test]
+	public void GetAllSalaries_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var startDate = DateTime.UtcNow;
+		var endDate = DateTime.UtcNow.AddDays(1);
+		var listOriginal = new List<SalaryDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), DateTime.UtcNow, 10),
+			new(Guid.NewGuid().ToString(), DateTime.UtcNow.AddDays(1), 14),
+			new(Guid.NewGuid().ToString(), DateTime.UtcNow.AddDays(-1), 30),
+		};
+		_salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Returns(listOriginal);
+		//Act
+		var list = _salaryBusinessLogicContract.GetAllSalariesByPeriod(startDate, endDate);
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.EquivalentTo(listOriginal));
+		_salaryStorageContract.Verify(x => x.GetList(startDate, endDate, null), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalaries_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Returns([]);
+		//Act
+		var list = _salaryBusinessLogicContract.GetAllSalariesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+		_salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalaries_IncorrectDates_ThrowException_Test()
+	{
+		//Arrange
+		var dateTime = DateTime.UtcNow;
+		//Act&Assert
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriod(dateTime, dateTime), Throws.TypeOf<IncorrectDatesException>());
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriod(dateTime, dateTime.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+		_salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalaries_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+		_salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalaries_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+		_salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalariesByWorker_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var startDate = DateTime.UtcNow;
+		var endDate = DateTime.UtcNow.AddDays(1);
+		var workerId = Guid.NewGuid().ToString();
+		var listOriginal = new List<SalaryDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), DateTime.UtcNow, 10),
+			new(Guid.NewGuid().ToString(), DateTime.UtcNow.AddDays(1), 14),
+			new(Guid.NewGuid().ToString(), DateTime.UtcNow.AddDays(-1), 30),
+		};
+		_salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Returns(listOriginal);
+		//Act
+		var list = _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(startDate, endDate, workerId);
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.EquivalentTo(listOriginal));
+		_salaryStorageContract.Verify(x => x.GetList(startDate, endDate, workerId), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalariesByWorker_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Returns([]);
+		//Act
+		var list = _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), Guid.NewGuid().ToString());
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+		_salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalariesByWorker_IncorrectDates_ThrowException_Test()
+	{
+		//Arrange
+		var dateTime = DateTime.UtcNow;
+		//Act&Assert
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(dateTime, dateTime, Guid.NewGuid().ToString()), Throws.TypeOf<IncorrectDatesException>());
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(dateTime, dateTime.AddSeconds(-1), Guid.NewGuid().ToString()), Throws.TypeOf<IncorrectDatesException>());
+		_salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalariesByWorker_WorkerIdIsNUllOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalariesByWorker_WorkerIdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), "workerId"), Throws.TypeOf<ValidationException>());
+		_salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalariesByWorker_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), Guid.NewGuid().ToString()), Throws.TypeOf<NullListException>());
+		_salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalariesByWorker_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByWorker(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void CalculateSalaryByMounth_CalculateSalary_Test()
+	{
+		//Arrange
+		var workerId = Guid.NewGuid().ToString();
+		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, 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));
+		_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;
+		var expectedSum = postSalary + saleSum * 0.1;
+		_salaryStorageContract.Setup(x => x.AddElement(It.IsAny<SalaryDataModel>()))
+			.Callback((SalaryDataModel x) =>
+			{
+				sum = x.Salary;
+			});
+		//Act
+		_salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow);
+		//Assert
+		Assert.That(sum, Is.EqualTo(expectedSum));
+	}
+
+	[Test]
+	public void CalculateSalaryByMounth_WithSeveralWorkers_Test()
+	{
+		//Arrange
+		var worker1Id = Guid.NewGuid().ToString();
+		var worker2Id = Guid.NewGuid().ToString();
+		var worker3Id = Guid.NewGuid().ToString();
+		var list = new List<WorkerDataModel>() {
+			new(worker1Id, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false),
+			new(worker2Id, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false),
+			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, 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));
+		_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
+		_salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow);
+		//Assert
+		_salaryStorageContract.Verify(x => x.AddElement(It.IsAny<SalaryDataModel>()), Times.Exactly(list.Count));
+	}
+
+	[Test]
+	public void CalculateSalaryByMounth_WithoutSalesByWorker_Test()
+	{
+		//Arrange
+		var postSalary = 2000.0;
+		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([]);
+		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+			.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;
+		var expectedSum = postSalary;
+		_salaryStorageContract.Setup(x => x.AddElement(It.IsAny<SalaryDataModel>()))
+			.Callback((SalaryDataModel x) =>
+			{
+				sum = x.Salary;
+			});
+		//Act
+		_salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow);
+		//Assert
+		Assert.That(sum, Is.EqualTo(expectedSum));
+	}
+
+	[Test]
+	public void CalculateSalaryByMounth_SaleStorageReturnNull_ThrowException_Test()
+	{
+		//Arrange
+		var workerId = Guid.NewGuid().ToString();
+		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+			.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
+		Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
+	}
+
+	[Test]
+	public void CalculateSalaryByMounth_PostStorageReturnNull_ThrowException_Test()
+	{
+		//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, 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
+		Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
+	}
+
+	[Test]
+	public void CalculateSalaryByMounth_WorkerStorageReturnNull_ThrowException_Test()
+	{
+		//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, DiscountType.None, false, [])]);
+		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+			.Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Assistant, 2000));
+		//Act&Assert
+		Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
+	}
+
+	[Test]
+	public void CalculateSalaryByMounth_SaleStorageThrowException_ThrowException_Test()
+	{
+		//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>()))
+			.Throws(new StorageException(new InvalidOperationException()));
+		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+			.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
+		Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<StorageException>());
+	}
+
+	[Test]
+	public void CalculateSalaryByMounth_PostStorageThrowException_ThrowException_Test()
+	{
+		//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, 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?>()))
+			.Returns([new WorkerDataModel(workerId, "Test", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+		//Act&Assert
+		Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<StorageException>());
+	}
+
+	[Test]
+	public void CalculateSalaryByMounth_WorkerStorageThrowException_ThrowException_Test()
+	{
+		//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, DiscountType.None, false, [])]);
+		_postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+			.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
+		Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<StorageException>());
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/BusinessLogicsContractsTests/SaleBusinessLogicContractTests.cs

@@ -0,0 +1,500 @@
+using CatHasPawsBusinessLogic.Implementations;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Enums;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+
+namespace CatHasPawsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class SaleBusinessLogicContractTests
+{
+	private SaleBusinessLogicContract _saleBusinessLogicContract;
+	private Mock<ISaleStorageContract> _saleStorageContract;
+
+	[OneTimeSetUp]
+	public void OneTimeSetUp()
+	{
+		_saleStorageContract = new Mock<ISaleStorageContract>();
+		_saleBusinessLogicContract = new SaleBusinessLogicContract(_saleStorageContract.Object, new Mock<ILogger>().Object);
+	}
+
+	[SetUp]
+	public void SetUp()
+	{
+		_saleStorageContract.Reset();
+	}
+
+	[Test]
+	public void GetAllSalesByPeriod_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		var listOriginal = new List<SaleDataModel>()
+		{
+			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
+		var list = _saleBusinessLogicContract.GetAllSalesByPeriod(date, date.AddDays(1));
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.EquivalentTo(listOriginal));
+		_saleStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null, null, null), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByPeriod_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+		//Act
+		var list = _saleBusinessLogicContract.GetAllSalesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByPeriod_IncorrectDates_ThrowException_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByPeriod(date, date), Throws.TypeOf<IncorrectDatesException>());
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByPeriod(date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalesByPeriod_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByPeriod_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_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()));
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByWorkerByPeriod_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		var workerId = Guid.NewGuid().ToString();
+		var listOriginal = new List<SaleDataModel>()
+		{
+			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
+		var list = _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(workerId, date, date.AddDays(1));
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.EquivalentTo(listOriginal));
+		_saleStorageContract.Verify(x => x.GetList(date, date.AddDays(1), workerId, null, null), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByWorkerByPeriod_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+		//Act
+		var list = _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByWorkerByPeriod_IncorrectDates_ThrowException_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalesByWorkerByPeriod_WorkerIdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalesByWorkerByPeriod_WorkerIdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod("workerId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ValidationException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalesByWorkerByPeriod_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByWorkerByPeriod_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_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()));
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByWorkerByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByBuyerByPeriod_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		var buyerId = Guid.NewGuid().ToString();
+		var listOriginal = new List<SaleDataModel>()
+		{
+			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
+		var list = _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(buyerId, date, date.AddDays(1));
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.EquivalentTo(listOriginal));
+		_saleStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null, buyerId, null), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByBuyerByPeriod_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+		//Act
+		var list = _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByBuyerByPeriod_IncorrectDates_ThrowException_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalesByBuyerByPeriod_BuyerIdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalesByBuyerByPeriod_BuyerIdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod("buyerId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ValidationException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalesByBuyerByPeriod_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByBuyerByPeriod_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_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()));
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByBuyerByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByProductByPeriod_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		var productId = Guid.NewGuid().ToString();
+		var listOriginal = new List<SaleDataModel>()
+		{
+			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
+		var list = _saleBusinessLogicContract.GetAllSalesByProductByPeriod(productId, date, date.AddDays(1));
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Is.EquivalentTo(listOriginal));
+		_saleStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null, null, productId), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByProductByPeriod_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_saleStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+		//Act
+		var list = _saleBusinessLogicContract.GetAllSalesByProductByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+		//Assert
+		Assert.That(list, Is.Not.Null);
+		Assert.That(list, Has.Count.EqualTo(0));
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByProductByPeriod_IncorrectDates_ThrowException_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByProductByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByProductByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalesByProductByPeriod_ProductIdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByProductByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByProductByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalesByProductByPeriod_ProductIdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByProductByPeriod("productId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ValidationException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllSalesByProductByPeriod_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByProductByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllSalesByProductByPeriod_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_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()));
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetAllSalesByProductByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+		_saleStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetSaleByData_GetById_ReturnRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		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);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.Id, Is.EqualTo(id));
+		_saleStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetSaleByData_EmptyData_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetSaleByData(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _saleBusinessLogicContract.GetSaleByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_saleStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetSaleByData_IdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetSaleByData("saleId"), Throws.TypeOf<ValidationException>());
+		_saleStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetSaleByData_GetById_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetSaleByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_saleStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetSaleByData_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_saleStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.GetSaleByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_saleStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertSale_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		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;
+			});
+		//Act
+		_saleBusinessLogicContract.InsertSale(record);
+		//Assert
+		_saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void InsertSale_RecordWithExistsData_ThrowException_Test()
+	{
+		//Arrange
+		_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(), 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);
+	}
+
+	[Test]
+	public void InsertSale_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.InsertSale(null), Throws.TypeOf<ArgumentNullException>());
+		_saleStorageContract.Verify(x => x.AddElement(It.IsAny<SaleDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertSale_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		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);
+	}
+
+	[Test]
+	public void InsertSale_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_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(), 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);
+	}
+
+	[Test]
+	public void CancelSale_CorrectRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var flag = false;
+		_saleStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+		//Act
+		_saleBusinessLogicContract.CancelSale(id);
+		//Assert
+		_saleStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void CancelSale_RecordWithIncorrectId_ThrowException_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		_saleStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.CancelSale(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_saleStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void CancelSale_IdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.CancelSale(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _saleBusinessLogicContract.CancelSale(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_saleStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void CancelSale_IdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.CancelSale("id"), Throws.TypeOf<ValidationException>());
+		_saleStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void CancelSale_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_saleStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _saleBusinessLogicContract.CancelSale(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_saleStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/BusinessLogicsContractsTests/WorkerBusinessLogicContractTests.cs

@@ -0,0 +1,557 @@
+using CatHasPawsBusinessLogic.Implementations;
+using CatHasPawsContratcs.DataModels;
+using CatHasPawsContratcs.Exceptions;
+using CatHasPawsContratcs.StoragesContracts;
+using Microsoft.Extensions.Logging;
+using Moq;
+
+namespace CatHasPawsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class WorkerBusinessLogicContractTests
+{
+	private WorkerBusinessLogicContract _workerBusinessLogicContract;
+	private Mock<IWorkerStorageContract> _workerStorageContract;
+
+	[OneTimeSetUp]
+	public void OneTimeSetUp()
+	{
+		_workerStorageContract = new Mock<IWorkerStorageContract>();
+		_workerBusinessLogicContract = new WorkerBusinessLogicContract(_workerStorageContract.Object, new Mock<ILogger>().Object);
+	}
+
+	[SetUp]
+	public void SetUp()
+	{
+		_workerStorageContract.Reset();
+	}
+
+	[Test]
+	public void GetAllWorkers_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var listOriginal = new List<WorkerDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), "fio 1", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+			new(Guid.NewGuid().ToString(), "fio 2", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+			new(Guid.NewGuid().ToString(), "fio 3", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, 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(listOriginal);
+		//Act
+		var listOnlyActive = _workerBusinessLogicContract.GetAllWorkers(true);
+		var list = _workerBusinessLogicContract.GetAllWorkers(false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+			Assert.That(list, Is.EquivalentTo(listOriginal));
+		});
+		_workerStorageContract.Verify(x => x.GetList(true, null, null, null, null, null), Times.Once);
+		_workerStorageContract.Verify(x => x.GetList(false, null, null, null, null, null), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkers_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns([]);
+		//Act
+		var listOnlyActive = _workerBusinessLogicContract.GetAllWorkers(true);
+		var list = _workerBusinessLogicContract.GetAllWorkers(false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+			Assert.That(list, Has.Count.EqualTo(0));
+		});
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), null, null, null, null, null), Times.Exactly(2));
+	}
+
+	[Test]
+	public void GetAllWorkers_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkers(It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkers_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_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
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkers(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), null, null, null, null, null), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByPost_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var postId = Guid.NewGuid().ToString();
+		var listOriginal = new List<WorkerDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), "fio 1", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+			new(Guid.NewGuid().ToString(), "fio 2", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+			new(Guid.NewGuid().ToString(), "fio 3", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, 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(listOriginal);
+		//Act
+		var listOnlyActive = _workerBusinessLogicContract.GetAllWorkersByPost(postId, true);
+		var list = _workerBusinessLogicContract.GetAllWorkersByPost(postId, false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+			Assert.That(list, Is.EquivalentTo(listOriginal));
+		});
+		_workerStorageContract.Verify(x => x.GetList(true, postId, null, null, null, null), Times.Once);
+		_workerStorageContract.Verify(x => x.GetList(false, postId, null, null, null, null), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByPost_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns([]);
+		//Act
+		var listOnlyActive = _workerBusinessLogicContract.GetAllWorkersByPost(Guid.NewGuid().ToString(), true);
+		var list = _workerBusinessLogicContract.GetAllWorkersByPost(Guid.NewGuid().ToString(), false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+			Assert.That(list, Has.Count.EqualTo(0));
+		});
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Exactly(2));
+	}
+
+	[Test]
+	public void GetAllWorkersByPost_PostIdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByPost(null, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByPost(string.Empty, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllWorkersByPost_PostIdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByPost("postId", It.IsAny<bool>()), Throws.TypeOf<ValidationException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllWorkersByPost_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByPost(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByPost_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_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
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByPost(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByBirthDate_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		var listOriginal = new List<WorkerDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), "fio 1", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+			new(Guid.NewGuid().ToString(), "fio 2", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+			new(Guid.NewGuid().ToString(), "fio 3", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, 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(listOriginal);
+		//Act
+		var listOnlyActive = _workerBusinessLogicContract.GetAllWorkersByBirthDate(date, date.AddDays(1), true);
+		var list = _workerBusinessLogicContract.GetAllWorkersByBirthDate(date, date.AddDays(1), false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+			Assert.That(list, Is.EquivalentTo(listOriginal));
+		});
+		_workerStorageContract.Verify(x => x.GetList(true, null, date, date.AddDays(1), null, null), Times.Once);
+		_workerStorageContract.Verify(x => x.GetList(false, null, date, date.AddDays(1), null, null), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByBirthDate_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns([]);
+		//Act
+		var listOnlyActive = _workerBusinessLogicContract.GetAllWorkersByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), true);
+		var list = _workerBusinessLogicContract.GetAllWorkers(false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+			Assert.That(list, Has.Count.EqualTo(0));
+		});
+		_workerStorageContract.Verify(x => x.GetList(true, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), null, null), Times.Once);
+		_workerStorageContract.Verify(x => x.GetList(false, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), null, null), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByBirthDate_IncorrectDates_ThrowException_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByBirthDate(date, date, It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByBirthDate(date, date.AddSeconds(-1), It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllWorkersByBirthDate_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByBirthDate_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_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
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByEmploymentDate_ReturnListOfRecords_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		var listOriginal = new List<WorkerDataModel>()
+		{
+			new(Guid.NewGuid().ToString(), "fio 1", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+			new(Guid.NewGuid().ToString(), "fio 2", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+			new(Guid.NewGuid().ToString(), "fio 3", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, 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(listOriginal);
+		//Act
+		var listOnlyActive = _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(date, date.AddDays(1), true);
+		var list = _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(date, date.AddDays(1), false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+			Assert.That(list, Is.EquivalentTo(listOriginal));
+		});
+		_workerStorageContract.Verify(x => x.GetList(true, null, null, null, date, date.AddDays(1)), Times.Once);
+		_workerStorageContract.Verify(x => x.GetList(false, null, null, null, date, date.AddDays(1)), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByEmploymentDate_ReturnEmptyList_Test()
+	{
+		//Arrange
+		_workerStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>())).Returns([]);
+		//Act
+		var listOnlyActive = _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), true);
+		var list = _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), false);
+		//Assert
+		Assert.Multiple(() =>
+		{
+			Assert.That(listOnlyActive, Is.Not.Null);
+			Assert.That(list, Is.Not.Null);
+			Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+			Assert.That(list, Has.Count.EqualTo(0));
+		});
+		_workerStorageContract.Verify(x => x.GetList(true, null, null, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+		_workerStorageContract.Verify(x => x.GetList(false, null, null, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByEmploymentDate_IncorrectDates_ThrowException_Test()
+	{
+		//Arrange
+		var date = DateTime.UtcNow;
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(date, date, It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(date, date.AddSeconds(-1), It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Never);
+	}
+
+	[Test]
+	public void GetAllWorkersByEmploymentDate_ReturnNull_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+	}
+
+	[Test]
+	public void GetAllWorkersByEmploymentDate_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_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
+		Assert.That(() => _workerBusinessLogicContract.GetAllWorkersByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+		_workerStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+	}
+
+	[Test]
+	public void GetWorkerByData_GetById_ReturnRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var record = new WorkerDataModel(id, "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+		_workerStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+		//Act
+		var element = _workerBusinessLogicContract.GetWorkerByData(id);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.Id, Is.EqualTo(id));
+		_workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetWorkerByData_GetByFio_ReturnRecord_Test()
+	{
+		//Arrange
+		var fio = "fio";
+		var record = new WorkerDataModel(Guid.NewGuid().ToString(), fio, Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+		_workerStorageContract.Setup(x => x.GetElementByFIO(fio)).Returns(record);
+		//Act
+		var element = _workerBusinessLogicContract.GetWorkerByData(fio);
+		//Assert
+		Assert.That(element, Is.Not.Null);
+		Assert.That(element.FIO, Is.EqualTo(fio));
+		_workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetWorkerByData_EmptyData_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetWorkerByData(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _workerBusinessLogicContract.GetWorkerByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+		_workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetWorkerByData_GetById_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetWorkerByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+		_workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void GetWorkerByData_GetByFio_NotFoundRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetWorkerByData("fio"), Throws.TypeOf<ElementNotFoundException>());
+		_workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+		_workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void GetWorkerByData_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_workerStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		_workerStorageContract.Setup(x => x.GetElementByFIO(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.GetWorkerByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		Assert.That(() => _workerBusinessLogicContract.GetWorkerByData("fio"), Throws.TypeOf<StorageException>());
+		_workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+		_workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertWorker_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		var record = new WorkerDataModel(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+		_workerStorageContract.Setup(x => x.AddElement(It.IsAny<WorkerDataModel>()))
+			.Callback((WorkerDataModel x) =>
+			{
+				flag = x.Id == record.Id && x.FIO == record.FIO && x.PostId == record.PostId && x.BirthDate == record.BirthDate &&
+					x.EmploymentDate == record.EmploymentDate && x.IsDeleted == record.IsDeleted;
+			});
+		//Act
+		_workerBusinessLogicContract.InsertWorker(record);
+		//Assert
+		_workerStorageContract.Verify(x => x.AddElement(It.IsAny<WorkerDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void InsertWorker_RecordWithExistsData_ThrowException_Test()
+	{
+		//Arrange
+		_workerStorageContract.Setup(x => x.AddElement(It.IsAny<WorkerDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.InsertWorker(new(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ElementExistsException>());
+		_workerStorageContract.Verify(x => x.AddElement(It.IsAny<WorkerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void InsertWorker_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.InsertWorker(null), Throws.TypeOf<ArgumentNullException>());
+		_workerStorageContract.Verify(x => x.AddElement(It.IsAny<WorkerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertWorker_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.InsertWorker(new WorkerDataModel("id", "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ValidationException>());
+		_workerStorageContract.Verify(x => x.AddElement(It.IsAny<WorkerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void InsertWorker_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_workerStorageContract.Setup(x => x.AddElement(It.IsAny<WorkerDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.InsertWorker(new(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<StorageException>());
+		_workerStorageContract.Verify(x => x.AddElement(It.IsAny<WorkerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateWorker_CorrectRecord_Test()
+	{
+		//Arrange
+		var flag = false;
+		var record = new WorkerDataModel(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+		_workerStorageContract.Setup(x => x.UpdElement(It.IsAny<WorkerDataModel>()))
+			.Callback((WorkerDataModel x) =>
+			{
+				flag = x.Id == record.Id && x.FIO == record.FIO && x.PostId == record.PostId && x.BirthDate == record.BirthDate &&
+					x.EmploymentDate == record.EmploymentDate && x.IsDeleted == record.IsDeleted;
+			});
+		//Act
+		_workerBusinessLogicContract.UpdateWorker(record);
+		//Assert
+		_workerStorageContract.Verify(x => x.UpdElement(It.IsAny<WorkerDataModel>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void UpdateWorker_RecordWithIncorrectData_ThrowException_Test()
+	{
+		//Arrange
+		_workerStorageContract.Setup(x => x.UpdElement(It.IsAny<WorkerDataModel>())).Throws(new ElementNotFoundException(""));
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.UpdateWorker(new(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ElementNotFoundException>());
+		_workerStorageContract.Verify(x => x.UpdElement(It.IsAny<WorkerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void UpdateWorker_NullRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.UpdateWorker(null), Throws.TypeOf<ArgumentNullException>());
+		_workerStorageContract.Verify(x => x.UpdElement(It.IsAny<WorkerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void UpdateWorker_InvalidRecord_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.UpdateWorker(new WorkerDataModel("id", "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ValidationException>());
+		_workerStorageContract.Verify(x => x.UpdElement(It.IsAny<WorkerDataModel>()), Times.Never);
+	}
+
+	[Test]
+	public void UpdateWorker_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_workerStorageContract.Setup(x => x.UpdElement(It.IsAny<WorkerDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.UpdateWorker(new(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<StorageException>());
+		_workerStorageContract.Verify(x => x.UpdElement(It.IsAny<WorkerDataModel>()), Times.Once);
+	}
+
+	[Test]
+	public void DeleteWorker_CorrectRecord_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		var flag = false;
+		_workerStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+		//Act
+		_workerBusinessLogicContract.DeleteWorker(id);
+		//Assert
+		_workerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+		Assert.That(flag);
+	}
+
+	[Test]
+	public void DeleteWorker_RecordWithIncorrectId_ThrowException_Test()
+	{
+		//Arrange
+		var id = Guid.NewGuid().ToString();
+		_workerStorageContract.Setup(x => x.DelElement(It.Is((string x) => x != id))).Throws(new ElementNotFoundException(id));
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.DeleteWorker(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+		_workerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+
+	[Test]
+	public void DeleteWorker_IdIsNullOrEmpty_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.DeleteWorker(null), Throws.TypeOf<ArgumentNullException>());
+		Assert.That(() => _workerBusinessLogicContract.DeleteWorker(string.Empty), Throws.TypeOf<ArgumentNullException>());
+		_workerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void DeleteWorker_IdIsNotGuid_ThrowException_Test()
+	{
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.DeleteWorker("id"), Throws.TypeOf<ValidationException>());
+		_workerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+	}
+
+	[Test]
+	public void DeleteWorker_StorageThrowError_ThrowException_Test()
+	{
+		//Arrange
+		_workerStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+		//Act&Assert
+		Assert.That(() => _workerBusinessLogicContract.DeleteWorker(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+		_workerStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+	}
+}

TheCatHasPawsProject/CatHasPawsTests/CatHasPawsTests.csproj

@@ -0,0 +1,40 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <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" />
+    <PackageReference Include="NUnit.Analyzers" Version="4.3.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\CatHasPawsBusinessLogic\CatHasPawsBusinessLogic.csproj" />
+    <ProjectReference Include="..\CatHasPawsContratcs\CatHasPawsContratcs.csproj" />
+    <ProjectReference Include="..\CatHasPawsDatabase\CatHasPawsDatabase.csproj" />
+    <ProjectReference Include="..\CatHasPawsWebApi\CatHasPawsWebApi.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="NUnit.Framework" />
+  </ItemGroup>
+
+</Project>