PipingHot/PipingHot.sln

@@ -7,6 +7,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PipingHotContrast", "Piping
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PipingHotTests", "PipingHotTests\PipingHotTests.csproj", "{2269D181-1994-4BB3-A024-611BB25239AE}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PipingHotBusinessLogic", "PipingHotBusinessLogic\PipingHotBusinessLogic.csproj", "{808448EA-2CE2-474C-9F95-F4ACBF170592}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -21,6 +23,10 @@ Global
 		{2269D181-1994-4BB3-A024-611BB25239AE}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2269D181-1994-4BB3-A024-611BB25239AE}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{2269D181-1994-4BB3-A024-611BB25239AE}.Release|Any CPU.Build.0 = Release|Any CPU
+		{808448EA-2CE2-474C-9F95-F4ACBF170592}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{808448EA-2CE2-474C-9F95-F4ACBF170592}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{808448EA-2CE2-474C-9F95-F4ACBF170592}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{808448EA-2CE2-474C-9F95-F4ACBF170592}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

PipingHot/PipingHot/BusinessLogicsContracts/IOrderBusinessLogicContract.cs

@@ -0,0 +1,23 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.BusinessLogicsContracts;
+
+public interface IOrderBusinessLogicContract
+{
+    List<OrderDataModel> GetAllOrdersByPeriod(DateTime fromDate, DateTime
+toDate);
+    List<OrderDataModel> GetAllOrdersByWorkerByPeriod(string workerId, DateTime
+    fromDate, DateTime toDate);
+    List<OrderDataModel> GetAllOrdersByRestaurantByPeriod(string restaurantId, DateTime
+    fromDate, DateTime toDate);
+    List<OrderDataModel> GetAllOrdersByProductByPeriod(string productId, DateTime
+    fromDate, DateTime toDate);
+    OrderDataModel GetOrderByData(string data);
+    void InsertOrder(OrderDataModel orderDataModel);
+    void CancelOrder(string id);
+}

PipingHot/PipingHot/BusinessLogicsContracts/IPostBusinessLogicContract.cs

@@ -0,0 +1,20 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.BusinessLogicsContracts;
+
+ public interface IPostBusinessLogicContract
+{
+    List<PostDataModel> GetAllPosts(bool onlyActive);
+    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);
+
+}

PipingHot/PipingHot/BusinessLogicsContracts/IProductBusinessLogicContract.cs

@@ -0,0 +1,21 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.BusinessLogicsContracts;
+
+public interface IProductBusinessLogicContract
+{
+    List<ProductDataModel> GetAllProducts(bool onlyActive = true);
+    List<ProductDataModel> GetAllProductsByRestaurant(string restaurantId,
+    bool onlyActive = true);
+    List<ProductHistoryDataModel> GetProductHistoryByProduct(string productId);
+    ProductDataModel GetProductByData(string data);
+    void InsertProduct(ProductDataModel productDataModel);
+    void UpdateProduct(ProductDataModel productDataModel);
+    void DeleteProduct(string id);
+
+}

PipingHot/PipingHot/BusinessLogicsContracts/IRestaurantBusinessLogicContract.cs

@@ -0,0 +1,20 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.BusinessLogicsContracts;
+
+public interface IRestaurantBusinessLogicContract
+{
+
+    List<RestaurantDataModel> GetAllRestaurants();
+    RestaurantDataModel GetRestaurantByData(string data);
+    void InsertRestaurant(RestaurantDataModel restaurantDataModel);
+    void UpdateRestaurant(RestaurantDataModel restaurantDataModel);
+
+    void DeleteRestaurant(string id);
+
+}

PipingHot/PipingHot/BusinessLogicsContracts/ISalaryBusinessLogicContract.cs

@@ -0,0 +1,16 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.BusinessLogicsContracts;
+
+public interface ISalaryBusinessLogicContract
+{
+    List<SalaryDataModel> GetAllSalariesByPeriod(DateTime fromDate, DateTime toDate);
+
+    List<SalaryDataModel> GetAllSalariesByPeriodByWorker(DateTime fromDate, DateTime toDate, string workerId);
+    void CalculateSalaryByMounth(DateTime date);
+}

PipingHot/PipingHot/BusinessLogicsContracts/IWorkerBusinessLogicContract.cs

@@ -0,0 +1,20 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.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);
+}

PipingHot/PipingHot/DataModels/OrderDataModel.cs

@@ -9,13 +9,15 @@ using System.Threading.Tasks;
 
 namespace PipingHotContrast.DataModels;
 
-public class OrderDataModel(string id, string workerId, string? restaurantId, double sum,  List<OrderProductDataModel> products):IValidation
+public class OrderDataModel(string id, string workerId, string restaurantId, double sum, bool isCancel, List<OrderProductDataModel> products):IValidation
 {
     public string Id { get; private set; } = id;
     public string WorkerId { get; private set; } = workerId;
-    public string? RestaurantId { get; private set; } = restaurantId;
+    public string RestaurantId { get; private set; } = restaurantId;
     public DateTime OrderDate { get; private set; } = DateTime.UtcNow;
     public double Sum { get; private set; } = sum;
+    public bool IsCancel { get; private set; } = isCancel;
+
     public List<OrderProductDataModel> Products { get; private set; } = products;
 
     public void Validate()
@@ -32,7 +34,10 @@ public class OrderDataModel(string id, string workerId, string? restaurantId, do
         if (!WorkerId.IsGuid())
             throw new ValidationException("The value in the field WorkerId is not a unique identifier");
 
-        if (!RestaurantId?.IsGuid() ?? !RestaurantId?.IsEmpty() ?? false)
+        if (RestaurantId.IsEmpty())
+            throw new ValidationException("Field RestaurantId is empty");
+
+        if (!RestaurantId.IsGuid())
             throw new ValidationException("The value in the field RestaurantId is not a unique identifier");
 
         if (Sum <= 0)

PipingHot/PipingHot/DataModels/PostDataModel.cs

@@ -11,10 +11,9 @@ using System.Threading.Tasks;
 
 namespace PipingHotContrast.DataModels;
 
-public class PostDataModel(string id, string postId, string postName, PostType postType, double salary, bool isActual, DateTime changeDate): IValidation
+public class PostDataModel(string id,  string postName, PostType postType, double salary, bool isActual, DateTime changeDate): IValidation
 {
-    public string Id { get; private set; } = id;
-    public string PostId { get; private set; } = postId;
+    public string Id { get; private set; } = id; 
     public string PostName { get; private set; } = postName;
     public PostType PostType { get; private set; } = postType;
     public double Salary { get; private set; } = salary;
@@ -26,11 +25,7 @@ public class PostDataModel(string id, string postId, string postName, PostType p
         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 (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");
+            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)

PipingHot/PipingHot/Exceptions/ElementExistsException.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.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;
+    }
+}

PipingHot/PipingHot/Exceptions/ElementNotFoundException.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.Exceptions;
+
+public class ElementNotFoundException: Exception
+{
+    public string Value { get; private set; }
+    public ElementNotFoundException(string value) : base($"Element not found at value = { value}")
+    {
+        Value = value;
+    }
+}

PipingHot/PipingHot/Exceptions/IncorrectDatesException.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using static System.Runtime.InteropServices.JavaScript.JSType;
+
+namespace PipingHotContrast.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}") { }
+
+}

PipingHot/PipingHot/Exceptions/NullListException.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.Exceptions;
+
+public class NullListException:Exception
+{
+    public NullListException() : base("The returned list is null") { }
+}

PipingHot/PipingHot/Exceptions/StorageException.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.Exceptions;
+
+public class StorageException:Exception
+{
+    public StorageException(Exception ex) : base($"Error while working instorage: { ex.Message}", ex) { }
+
+}

PipingHot/PipingHot/Extensions/DateTimeExtensions.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.Extensions;
+
+public static class DateTimeExtensions
+{
+    public static bool IsDateNotOlder(this DateTime date, DateTime olderDate)
+    {
+        return date >= olderDate;
+    }
+}

PipingHot/PipingHot/StoragesContracts/IOrderStorageContract.cs

@@ -0,0 +1,17 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.StoragesContracts;
+
+public interface IOrderStorageContract
+{
+    List<OrderDataModel> GetList(DateTime? startDate = null, DateTime? endDate = null, string? workerId = null, string? restaurantId = null, string? productId = null);
+    OrderDataModel? GetElementById(string id);
+    void AddElement(OrderDataModel orderDataModel);
+    void DelElement(string id);
+}

PipingHot/PipingHot/StoragesContracts/IPostStorageContract.cs

@@ -0,0 +1,20 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.StoragesContracts;
+
+public interface IPostStorageContract
+{
+    List<PostDataModel> GetList(bool onlyActual = true);
+    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);
+}

PipingHot/PipingHot/StoragesContracts/IProductStorageContract.cs

@@ -0,0 +1,20 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.StoragesContracts;
+
+public interface IProductStorageContract
+{
+    List<ProductDataModel> GetList(bool onlyActive = true, string? restaurantId = 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);
+
+}

PipingHot/PipingHot/StoragesContracts/IRestaurantStorageContract.cs

@@ -0,0 +1,19 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.StoragesContracts;
+
+public interface IRestaurantStorageContract
+{
+    List<RestaurantDataModel> GetList();
+    RestaurantDataModel? GetElementById(string id);
+    RestaurantDataModel? GetElementByName(string name);
+    RestaurantDataModel? GetElementByOldName(string name);
+    void AddElement(RestaurantDataModel restaurantDataModel);
+    void UpdElement(RestaurantDataModel restaurantDataModel);
+    void DelElement(string id);
+}

PipingHot/PipingHot/StoragesContracts/ISalaryStorageContract.cs

@@ -0,0 +1,14 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.StoragesContracts;
+
+public interface ISalaryStorageContract
+{
+    List<SalaryDataModel> GetList(DateTime startDate, DateTime engDate, string? workerId = null);
+    void AddElement(SalaryDataModel salaryDataModel);
+}

PipingHot/PipingHot/StoragesContracts/IWorkerStorageContract.cs

@@ -0,0 +1,20 @@
+using PipingHotContrast.DataModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotContrast.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);
+    WorkerDataModel? GetElementByEmail(string email);
+    void AddElement(WorkerDataModel workerDataModel);
+    void UpdElement(WorkerDataModel woworkerDataModel);
+    void DelElement(string id);
+
+}

PipingHot/PipingHotBusinessLogic/Implementations/OrderBusinessLogicContract.cs

@@ -0,0 +1,117 @@
+using Microsoft.Extensions.Logging;
+using PipingHotContrast.BusinessLogicsContracts;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.Extensions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace PipingHotBusinessLogic.Implementations;
+
+internal class OrderBusinessLogicContract(IOrderStorageContract orderStorageContract, ILogger logger) : IOrderBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IOrderStorageContract _orderStorageContract = orderStorageContract;
+    public List<OrderDataModel> GetAllOrdersByPeriod(DateTime fromDate, DateTime toDate)
+    {
+        _logger.LogInformation("GetAllSales params: {fromDate}, {toDate}", fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        return _orderStorageContract.GetList(fromDate, toDate) ?? throw new NullListException();
+    }
+    public List<OrderDataModel> GetAllOrdersByWorkerByPeriod(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 _orderStorageContract.GetList(fromDate, toDate, workerId: workerId) ?? throw new NullListException();
+    }
+    public List<OrderDataModel> GetAllOrdersByRestaurantByPeriod(string restaurantId, DateTime fromDate, DateTime toDate)
+    {
+
+        _logger.LogInformation("GetAllSales params: {restaurantId}, {fromDate},{ toDate} ", restaurantId, fromDate, toDate);
+        if (fromDate.IsDateNotOlder(toDate))
+        {
+            throw new IncorrectDatesException(fromDate, toDate);
+        }
+        if (restaurantId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(restaurantId));
+        }
+        if (!restaurantId.IsGuid())
+        {
+            throw new ValidationException("The value in the field restaurantId is not a unique identifier.");
+        }
+        return _orderStorageContract.GetList(fromDate, toDate, restaurantId: restaurantId) ?? throw new NullListException();
+    }
+    public List<OrderDataModel> GetAllOrdersByProductByPeriod(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 _orderStorageContract.GetList(fromDate, toDate, productId: productId) ?? throw new NullListException();
+
+    }
+    public OrderDataModel GetOrderByData(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 _orderStorageContract.GetElementById(data) ?? throw new ElementNotFoundException(data);
+    }
+
+    public void InsertOrder(OrderDataModel orderDataModel)
+    {
+        _logger.LogInformation("New data: {json}", JsonSerializer.Serialize(orderDataModel));
+        ArgumentNullException.ThrowIfNull(orderDataModel);
+        orderDataModel.Validate();
+        _orderStorageContract.AddElement(orderDataModel);
+
+    }
+    public void CancelOrder(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");
+        }
+        _orderStorageContract.DelElement(id);
+    }
+}

PipingHot/PipingHotBusinessLogic/Implementations/PostBusinessLogicContract.cs

@@ -0,0 +1,99 @@
+using Microsoft.Extensions.Logging;
+using PipingHotContrast.BusinessLogicsContracts;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Enums;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.Extensions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace PipingHotBusinessLogic.Implementations;
+
+internal class PostBusinessLogicContract(IPostStorageContract postStorageContract, ILogger logger) : IPostBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IPostStorageContract _postStorageContract = postStorageContract;
+    public List<PostDataModel> GetAllPosts(bool onlyActive)
+    {
+        logger.LogInformation("GetAllPosts params: {onlyActive}", onlyActive);
+        return _postStorageContract.GetList(onlyActive) ?? 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);
+    }
+}

PipingHot/PipingHotBusinessLogic/Implementations/ProductBusinessLogicContract.cs

@@ -0,0 +1,98 @@
+using Microsoft.Extensions.Logging;
+using PipingHotContrast.BusinessLogicsContracts;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Enums;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.Extensions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace PipingHotBusinessLogic.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 = true)
+    {
+        _logger.LogInformation("GetAllProducts params: {onlyActive}",onlyActive);
+        return _productStorageContract.GetList(onlyActive) ?? throw new NullListException();
+
+    }
+
+    public List<ProductDataModel> GetAllProductsByRestaurant(string restaurantId, bool onlyActive = true)
+    {
+        if (restaurantId.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(restaurantId));
+        }
+        if (!restaurantId.IsGuid())
+        {
+            throw new ValidationException("The value in the field restaurantId is not a unique identifier.");
+        }
+        _logger.LogInformation("GetAllProducts params: {restaurantId},{ onlyActive}", restaurantId, onlyActive);
+        return _productStorageContract.GetList(onlyActive, restaurantId) ?? 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);
+    }
+}

PipingHot/PipingHotBusinessLogic/Implementations/RestaurantBusinessLogicContract.cs

@@ -0,0 +1,73 @@
+
+using Microsoft.Extensions.Logging;
+using PipingHotContrast.BusinessLogicsContracts;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.Extensions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace PipingHotBusinessLogic.Implementations;
+
+internal class RestaurantBusinessLogicContract(IRestaurantStorageContract  restaurantStorageContract, ILogger logger) : IRestaurantBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly IRestaurantStorageContract _restaurantStorageContract = restaurantStorageContract;
+    public List<RestaurantDataModel> GetAllRestaurants()
+    {
+        _logger.LogInformation("GetAllRestaurants");
+        return _restaurantStorageContract.GetList() ?? throw new NullListException();
+
+    }
+
+    public RestaurantDataModel GetRestaurantByData(string data)
+    {
+        _logger.LogInformation("Get element by data: {data}", data);
+        if (data.IsEmpty())
+        {
+            throw new ArgumentNullException(nameof(data));
+        }
+        if (data.IsGuid())
+        {
+            return _restaurantStorageContract.GetElementById(data) ??
+            throw new ElementNotFoundException(data);
+        }
+        return _restaurantStorageContract.GetElementByName(data) ??
+        _restaurantStorageContract.GetElementByOldName(data) ??
+        throw new ElementNotFoundException(data);
+    }
+
+    public void InsertRestaurant(RestaurantDataModel restaurantDataModel)
+    {
+        logger.LogInformation("New data: {json}", JsonSerializer.Serialize(restaurantDataModel));
+        ArgumentNullException.ThrowIfNull(restaurantDataModel);
+        restaurantDataModel.Validate();
+        _restaurantStorageContract.AddElement(restaurantDataModel);
+    }
+
+    public void UpdateRestaurant(RestaurantDataModel restaurantDataModel)
+    {
+        _logger.LogInformation("Update data: {json}", JsonSerializer.Serialize(restaurantDataModel));
+        ArgumentNullException.ThrowIfNull(restaurantDataModel);
+        restaurantDataModel.Validate();
+        _restaurantStorageContract.UpdElement(restaurantDataModel);
+    }
+    public void DeleteRestaurant(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");
+        }
+        _restaurantStorageContract.DelElement(id);
+    }
+}

PipingHot/PipingHotBusinessLogic/Implementations/SalaryBusinessLogicContract.cs

@@ -0,0 +1,67 @@
+using Microsoft.Extensions.Logging;
+using PipingHotContrast.BusinessLogicsContracts;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.Extensions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotBusinessLogic.Implementations;
+
+internal class SalaryBusinessLogicContract(ISalaryStorageContract salaryStorageContract,
+    IOrderStorageContract orderStorageContract, IPostStorageContract postStorageContract, IWorkerStorageContract workerStorageContract, ILogger logger) : ISalaryBusinessLogicContract
+{
+    private readonly ILogger _logger = logger;
+    private readonly ISalaryStorageContract _salaryStorageContract = salaryStorageContract;
+    private readonly IOrderStorageContract _orderStorageContract = orderStorageContract;
+    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 orders = _orderStorageContract.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 + orders * 0.1;
+            _logger.LogDebug("The employee {workerId} was paid a salary of { salary}", worker.Id, salary);
+            _salaryStorageContract.AddElement(new SalaryDataModel(worker.Id, finishDate, salary));
+        }
+
+    }
+}

PipingHot/PipingHotBusinessLogic/Implementations/WorkerBusinessLogicContract.cs

@@ -0,0 +1,110 @@
+using Microsoft.Extensions.Logging;
+using PipingHotContrast.BusinessLogicsContracts;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.Extensions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace PipingHotBusinessLogic.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);
+        }
+        if (Regex.IsMatch(data, @"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$"))
+        {
+            return _workerStorageContract.GetElementByEmail(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);
+    }
+}

PipingHot/PipingHotBusinessLogic/PipingHotBusinessLogic.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWPF>true</UseWPF>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+	
+	<ItemGroup>
+		<InternalsVisibleTo Include="PipingHotTests" />
+		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
+	</ItemGroup>
+	
+	<ItemGroup>
+	  <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.2" />
+	</ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PipingHot\PipingHotContrast.csproj" />
+  </ItemGroup>
+
+</Project>

PipingHot/PipingHotTests/BusinessLogicsContractsTests/OrderBusinessLogicContractTests.cs

@@ -0,0 +1,636 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using PipingHotBusinessLogic.Implementations;
+using PipingHotContrast.BusinessLogicsContracts;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class OrderBusinessLogicContractTests
+{
+    private OrderBusinessLogicContract _orderBusinessLogicContract;
+    private Mock<IOrderStorageContract> _orderStorageContract;
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _orderStorageContract = new Mock<IOrderStorageContract>();
+        _orderBusinessLogicContract = new
+        OrderBusinessLogicContract(_orderStorageContract.Object, new
+        Mock<ILogger>().Object);
+    }
+    [TearDown]
+    public void TearDown()
+    {
+       _orderStorageContract.Reset();
+    }
+    [Test]
+    public void GetAllOrdersByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var listOriginal = new List<OrderDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            null, 10, false,
+            [new OrderProductDataModel(Guid.NewGuid().ToString(),
+            Guid.NewGuid().ToString(), 5)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            null, 10, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            null, 10, false, []),
+        };
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _orderBusinessLogicContract.GetAllOrdersByPeriod(date,   date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _orderStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null, null, null), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _orderBusinessLogicContract.GetAllOrdersByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByPeriod_IncorrectDates_ThrowException_Test()
+    {
+       
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByPeriod(date, date),Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByPeriod(date, date.AddSeconds(-1)),  Throws.TypeOf<IncorrectDatesException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllOrdersByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _orderStorageContract.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(() =>
+        _orderBusinessLogicContract.GetAllOrdersByPeriod(DateTime.UtcNow,DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllOrdersByWorkerByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var workerId = Guid.NewGuid().ToString();
+        var listOriginal = new List<OrderDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            null, 10,  false,
+            [new OrderProductDataModel(Guid.NewGuid().ToString(),
+            Guid.NewGuid().ToString(), 5)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            null, 10, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            null, 10,  false, []),
+        };
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        
+        var list =_orderBusinessLogicContract.GetAllOrdersByWorkerByPeriod(workerId, date, date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _orderStorageContract.Verify(x => x.GetList(date, date.AddDays(1), workerId, null, null), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByWorkerByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _orderBusinessLogicContract.GetAllOrdersByWorkerByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByWorkerByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByWorkerByPeriod(Guid.NewGuid().ToString(),  date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByWorkerByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllOrdersByWorkerByPeriod_WorkerIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByWorkerByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByWorkerByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)),
+        Throws.TypeOf<ArgumentNullException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllOrdersByWorkerByPeriod_WorkerIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByWorkerByPeriod("workerId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)),
+        Throws.TypeOf<ValidationException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllOrdersByWorkerByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByWorkerByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)),
+        Throws.TypeOf<NullListException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByWorkerByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _orderStorageContract.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(() =>
+        _orderBusinessLogicContract.GetAllOrdersByWorkerByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByRestaurantByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var restaurantId = Guid.NewGuid().ToString();
+        var listOriginal = new List<OrderDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            null, 10, false,
+            [new OrderProductDataModel(Guid.NewGuid().ToString(),
+            Guid.NewGuid().ToString(), 5)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            null, 10,  false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            null, 10,  false, []),
+        };
+
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _orderBusinessLogicContract.GetAllOrdersByRestaurantByPeriod(restaurantId, date,date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _orderStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null, restaurantId, null), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByRestaurantByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>())).Returns([]);
+        //Act
+        var list =
+        _orderBusinessLogicContract.GetAllOrdersByRestaurantByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByRestaurantByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByRestaurantByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByRestaurantByPeriod(Guid.NewGuid().ToString(),date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllOrdersByRestaurantByPeriod_RestaurantIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByRestaurantByPeriod(null, DateTime.UtcNow,  DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByRestaurantByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)),
+        Throws.TypeOf<ArgumentNullException>());
+
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllOrdersByRestaurantByPeriod_RestaurantIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByRestaurantByPeriod("restaurantId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ValidationException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllOrdersByRestaurantByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByRestaurantByPeriod(Guid.NewGuid().ToString(),
+        DateTime.UtcNow, DateTime.UtcNow.AddDays(1)),
+        Throws.TypeOf<NullListException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByRestaurantByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _orderStorageContract.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(() =>
+        _orderBusinessLogicContract.GetAllOrdersByRestaurantByPeriod(Guid.NewGuid().ToString(),DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByProductByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var productId = Guid.NewGuid().ToString();
+        var listOriginal = new List<OrderDataModel>()
+            {
+                new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+                null, 10,  false,
+                [new OrderProductDataModel(Guid.NewGuid().ToString(),
+                Guid.NewGuid().ToString(), 5)]),
+                new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+                null, 10,false, []),
+                
+                new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+                null, 10,  false, []),
+            };
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list =
+        _orderBusinessLogicContract.GetAllOrdersByProductByPeriod(productId, date,
+        date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _orderStorageContract.Verify(x => x.GetList(date, date.AddDays(1),
+        null, null, productId), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByProductByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _orderBusinessLogicContract.GetAllOrdersByProductByPeriod(Guid.NewGuid().ToString()
+        , DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByProductByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByProductByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByProductByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllOrdersByProductByPeriod_ProductIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByProductByPeriod(null, DateTime.UtcNow,DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByProductByPeriod(string.Empty,DateTime.UtcNow, DateTime.UtcNow.AddDays(1)),
+        Throws.TypeOf<ArgumentNullException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllOrdersByProductByPeriod_ProductIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByProductByPeriod("productId",DateTime.UtcNow, DateTime.UtcNow.AddDays(1)),
+        Throws.TypeOf<ValidationException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllOrdersByProductByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetAllOrdersByProductByPeriod(Guid.NewGuid().ToString()
+        , DateTime.UtcNow, DateTime.UtcNow.AddDays(1)),
+        Throws.TypeOf<NullListException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetAllOrdersByProductByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _orderStorageContract.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(() =>
+        _orderBusinessLogicContract.GetAllOrdersByProductByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)),
+        Throws.TypeOf<StorageException>());
+        _orderStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(),
+        It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetOrderByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new OrderDataModel(id, Guid.NewGuid().ToString(), null,
+        10,  false,
+        [new OrderProductDataModel(Guid.NewGuid().ToString(),Guid.NewGuid().ToString(), 5)]);
+        _orderStorageContract.Setup(x =>x.GetElementById(id)).Returns(record);
+
+        //Act
+        var element = _orderBusinessLogicContract.GetOrderByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _orderStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetOrderByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _orderBusinessLogicContract.GetOrderByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetOrderByData(string.Empty),   Throws.TypeOf<ArgumentNullException>());
+        _orderStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetOrderByData_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _orderBusinessLogicContract.GetOrderByData("saleId"),
+        Throws.TypeOf<ValidationException>());
+        _orderStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetOrderByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetOrderByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _orderStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetOrderByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _orderStorageContract.Setup(x =>
+        x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.GetOrderByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _orderStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertOrder_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        
+        var record = new OrderDataModel(Guid.NewGuid().ToString(),
+        Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10,
+        false, [new OrderProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        _orderStorageContract.Setup(x => x.AddElement(It.IsAny<OrderDataModel>()))
+        .Callback((OrderDataModel x) =>
+        {
+            flag = x.Id == record.Id && x.WorkerId ==
+            record.WorkerId && x.RestaurantId == record.RestaurantId &&
+            x.OrderDate == record.OrderDate && x.Sum ==
+            record.Sum && 
+             x.IsCancel == record.IsCancel && x.Products.Count == record.Products.Count &&
+            x.Products.First().ProductId ==
+            record.Products.First().ProductId &&
+            x.Products.First().OrderId ==
+            record.Products.First().OrderId &&
+            x.Products.First().Count ==
+            record.Products.First().Count;
+        });
+        //Act
+        _orderBusinessLogicContract.InsertOrder(record);
+        //Assert
+        _orderStorageContract.Verify(x =>x.AddElement(It.IsAny<OrderDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+    [Test]
+    public void InsertOrder_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _orderStorageContract.Setup(x => x.AddElement(It.IsAny<OrderDataModel>())).Throws(new  ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.InsertOrder(new(Guid.NewGuid().ToString(),
+        Guid.NewGuid().ToString(),
+        Guid.NewGuid().ToString(), 10,  false,
+        [new OrderProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),5)])), Throws.TypeOf<ElementExistsException>());
+        _orderStorageContract.Verify(x => x.AddElement(It.IsAny<OrderDataModel>()), Times.Once);
+    }
+    [Test]
+    public void InsertOrder_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _orderBusinessLogicContract.InsertOrder(null), Throws.TypeOf<ArgumentNullException>());
+        _orderStorageContract.Verify(x => x.AddElement(It.IsAny<OrderDataModel>()), Times.Never);
+    }
+    [Test]
+    public void InsertOrder_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _orderBusinessLogicContract.InsertOrder(new
+        OrderDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10,
+         false, [])), Throws.TypeOf<ValidationException>());
+
+        _orderStorageContract.Verify(x =>
+        x.AddElement(It.IsAny<OrderDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertOrder_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _orderStorageContract.Setup(x => x.AddElement(It.IsAny<OrderDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.InsertOrder(new(Guid.NewGuid().ToString(),
+        Guid.NewGuid().ToString(),
+        Guid.NewGuid().ToString(), 10, false,
+        [new OrderProductDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),5)])), Throws.TypeOf<StorageException>());
+        _orderStorageContract.Verify(x => x.AddElement(It.IsAny<OrderDataModel>()), Times.Once);
+    }
+    [Test]
+    public void CancelOrder_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _orderStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _orderBusinessLogicContract.CancelOrder(id);
+        //Assert
+        _orderStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+    [Test]
+    public void CancelOrder_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _orderStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.CancelOrder(Guid.NewGuid().ToString()),Throws.TypeOf<ElementNotFoundException>());
+        _orderStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void CancelOrder_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _orderBusinessLogicContract.CancelOrder(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() =>
+        _orderBusinessLogicContract.CancelOrder(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _orderStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void CancelOrder_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _orderBusinessLogicContract.CancelOrder("id"),Throws.TypeOf<ValidationException>());
+        _orderStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void CancelOrder_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _orderStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() =>
+        _orderBusinessLogicContract.CancelOrder(Guid.NewGuid().ToString()),Throws.TypeOf<StorageException>());
+        _orderStorageContract.Verify(x => x.DelElement(It.IsAny<string>()),Times.Once);
+    }
+}
+
+
+
+
+
+
+
+
+
+
+

PipingHot/PipingHotTests/BusinessLogicsContractsTests/PostBusinessLogicContractTests.cs

@@ -0,0 +1,462 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using PipingHotBusinessLogic.Implementations;
+using PipingHotContrast.BusinessLogicsContracts;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Enums;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotTests.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);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _postStorageContract.Reset();
+    }
+    [Test]
+    public void GetAllPosts_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<PostDataModel>()
+        {
+            new(Guid.NewGuid().ToString(),"name 1", PostType.Operator, 10, true, DateTime.UtcNow),
+            new(Guid.NewGuid().ToString(), "name 2", PostType.Operator,  10, false, DateTime.UtcNow),
+            new(Guid.NewGuid().ToString(), "name 3", PostType.Operator,  10, true, DateTime.UtcNow),
+        };
+        _postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns(listOriginal);
+        //Act
+        var listOnlyActive = _postBusinessLogicContract.GetAllPosts(true);
+        var listAll = _postBusinessLogicContract.GetAllPosts(false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(listAll, Is.Not.Null);
+            Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
+            Assert.That(listAll, Is.EquivalentTo(listOriginal));
+        });
+        _postStorageContract.Verify(x => x.GetList(true), Times.Once);
+        _postStorageContract.Verify(x => x.GetList(false), Times.Once);
+    }
+    [Test]
+    public void GetAllPosts_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns([]);
+        //Act
+        var listOnlyActive = _postBusinessLogicContract.GetAllPosts(true);
+        var listAll = _postBusinessLogicContract.GetAllPosts(false);
+        //Assert
+        Assert.Multiple(() =>
+        {
+            Assert.That(listOnlyActive, Is.Not.Null);
+            Assert.That(listAll, Is.Not.Null);
+            Assert.That(listOnlyActive, Has.Count.EqualTo(0));
+            Assert.That(listAll, Has.Count.EqualTo(0));
+        });
+        _postStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Exactly(2));
+
+    }
+
+    [Test]
+    public void GetAllPosts_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetAllPosts(It.IsAny<bool>()),Throws.TypeOf<NullListException>());
+        _postStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Once);
+    }
+    [Test]
+    public void GetAllPosts_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _postStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _postBusinessLogicContract.GetAllPosts(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _postStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllDataOfPost_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var postId = Guid.NewGuid().ToString();
+        var listOriginal = new List<PostDataModel>()
+        {
+                new(postId, "name 1", PostType.Operator, 10, true,
+                DateTime.UtcNow),
+                new(postId, "name 2", PostType.Operator, 10, false,
+                DateTime.UtcNow)
+        };
+        _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.Operator, 10,true, DateTime.UtcNow);
+        _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.Operator, 10, true, DateTime.UtcNow);
+        _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.Deliveryman, 10, true, DateTime.UtcNow.AddDays(-1));
+        _postStorageContract.Setup(x => x.AddElement(It.IsAny<PostDataModel>()))
+        .Callback((PostDataModel x) =>
+        {
+            flag = x.Id == record.Id && x.PostName == record.PostName && x.PostType == record.PostType && x.Salary == record.Salary && x.ChangeDate == record.ChangeDate;
+        });
+        //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.Deliveryman, 10, true, DateTime.UtcNow)),
+        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.Deliveryman, 10, true, DateTime.UtcNow)),
+        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.Deliveryman, 10, true, DateTime.UtcNow)),
+        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.Deliveryman, 10, true, DateTime.UtcNow.AddDays(-1));
+        _postStorageContract.Setup(x =>  x.UpdElement(It.IsAny<PostDataModel>()))
+
+        .Callback((PostDataModel x) =>
+        {
+            flag = x.Id == record.Id && x.PostName ==
+            record.PostName && x.PostType == record.PostType && x.Salary == record.Salary &&
+            x.ChangeDate == record.ChangeDate;
+        });
+        //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.Deliveryman, 10, true, DateTime.UtcNow)),
+        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.Deliveryman, 10, true, DateTime.UtcNow)),
+        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.Deliveryman, 10, true, DateTime.UtcNow)),
+        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.Deliveryman, 10, true, DateTime.UtcNow)),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);
+    }
+
+
+
+
+
+
+
+
+}

PipingHot/PipingHotTests/BusinessLogicsContractsTests/ProductBusinessLogicContractTests.cs

@@ -0,0 +1,518 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using PipingHotBusinessLogic.Implementations;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Enums;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotTests.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);
+    }
+    [TearDown]
+    public void TearDown()
+    {
+        _productStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllProducts_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<ProductDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "name 1",
+            ProductType.Pizza, Guid.NewGuid().ToString(), 10, false),
+            new(Guid.NewGuid().ToString(), "name 2",
+            ProductType.Pizza, Guid.NewGuid().ToString(), 10, true),
+            new(Guid.NewGuid().ToString(), "name 3",
+            ProductType.Pizza, 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 GetAllProductsByRestaurant_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var restaurantId = Guid.NewGuid().ToString();
+        var listOriginal = new List<ProductDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "name 1",ProductType.Pizza,
+            Guid.NewGuid().ToString(), 10, false),
+            new(Guid.NewGuid().ToString(), "name 2",
+            ProductType.Pizza, Guid.NewGuid().ToString(), 10, true),
+            new(Guid.NewGuid().ToString(), "name 3",
+            ProductType.Pizza, Guid.NewGuid().ToString(), 10, false),
+        };
+        _productStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var listOnlyActive =  _productBusinessLogicContract.GetAllProductsByRestaurant(restaurantId, true);
+        var list = _productBusinessLogicContract.GetAllProductsByRestaurant(restaurantId, 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, restaurantId), Times.Once);
+        _productStorageContract.Verify(x => x.GetList(false, restaurantId), Times.Once);
+    }
+
+    [Test]
+    public void GetAllProductsByRestaurant_ReturnEmptyList_Test()
+    {
+        //Arrange
+        var restaurantId = Guid.NewGuid().ToString();
+        _productStorageContract.Setup(x => x.GetList(It.IsAny<bool>(),
+        It.IsAny<string>())).Returns([]);
+        //Act
+        
+        var listOnlyActive =  _productBusinessLogicContract.GetAllProductsByRestaurant(restaurantId, true);
+         var list = _productBusinessLogicContract.GetAllProductsByRestaurant(restaurantId, 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>(),restaurantId), Times.Exactly(2));
+    }
+
+    [Test]
+    public void GetAllProductsByRestaurant_RestaurantIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _productBusinessLogicContract.GetAllProductsByRestaurant(null,  It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() =>
+        _productBusinessLogicContract.GetAllProductsByRestaurant(string.Empty,It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+        _productStorageContract.Verify(x => x.GetList(It.IsAny<bool>(),  It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllProductsByRestaurant_RestaurantIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _productBusinessLogicContract.GetAllProductsByRestaurant("manufacturerId",It.IsAny<bool>()), Throws.TypeOf<ValidationException>());
+        _productStorageContract.Verify(x => x.GetList(It.IsAny<bool>(),  It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetAllProductsByRestaurant_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _productBusinessLogicContract.GetAllProductsByRestaurant(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 GetAllProductsByRestaurant_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.GetAllProductsByRestaurant(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.Pizza, 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.Pizza, 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.Pizza, 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.RestaurantId == record.RestaurantId && 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.Pizza, 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.Pizza, 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.Pizza, 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.Pizza, 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.RestaurantId == record.RestaurantId && 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.Pizza, 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(), "name", ProductType.Pizza, 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.Pizza, 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.Pizza, 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);
+    }
+
+
+
+
+
+
+
+}

PipingHot/PipingHotTests/BusinessLogicsContractsTests/RestaurantBusinessLogicsContractsTests.cs

@@ -0,0 +1,375 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+
+using PipingHotBusinessLogic.Implementations;
+using PipingHotContrast.BusinessLogicsContracts;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class RestaurantBusinessLogicsContractsTests
+{
+    private RestaurantBusinessLogicContract _restaurantBusinessLogicContract;
+    private Mock<IRestaurantStorageContract> _restaurantStorageContract;
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _restaurantStorageContract = new
+        Mock<IRestaurantStorageContract>();
+        _restaurantBusinessLogicContract = new
+        RestaurantBusinessLogicContract(_restaurantStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        _restaurantStorageContract.Reset();
+    }
+    [Test]
+    public void GetAllRestaurants_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<RestaurantDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "name 1", null, null),
+            new(Guid.NewGuid().ToString(), "name 2", null, null),
+            new(Guid.NewGuid().ToString(), "name 3", null, null),
+        };
+        _restaurantStorageContract.Setup(x => x.GetList()).Returns(listOriginal);
+        //Act
+        var list = _restaurantBusinessLogicContract.GetAllRestaurants();
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+    }
+    [Test]
+    public void GetAllRestaurants_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _restaurantStorageContract.Setup(x => x.GetList()).Returns([]);
+        //Act
+        var list = _restaurantBusinessLogicContract.GetAllRestaurants();
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _restaurantStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+    [Test]
+    public void GetAllRestaurants_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _restaurantBusinessLogicContract.GetAllRestaurants(),
+        Throws.TypeOf<NullListException>());
+        _restaurantStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+    [Test]
+    public void GetAllRestaurants_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _restaurantStorageContract.Setup(x => x.GetList()).Throws(new
+        StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() =>
+        _restaurantBusinessLogicContract.GetAllRestaurants(),
+        Throws.TypeOf<StorageException>());
+        _restaurantStorageContract.Verify(x => x.GetList(), Times.Once);
+    }
+    [Test]
+    public void GetRestaurantByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new RestaurantDataModel(id, "name", null, null);
+        _restaurantStorageContract.Setup(x =>
+        x.GetElementById(id)).Returns(record);
+        
+        //Act
+        var element =_restaurantBusinessLogicContract.GetRestaurantByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _restaurantStorageContract.Verify(x =>
+        x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetRestaurantByData_GetByName_ReturnRecord_Test()
+    {
+        //Arrange
+        var restaurantName = "name";
+        var record = new RestaurantDataModel(Guid.NewGuid().ToString(),
+        restaurantName, null, null);
+        _restaurantStorageContract.Setup(x =>
+        x.GetElementByName(restaurantName)).Returns(record);
+        //Act
+        var element =
+        _restaurantBusinessLogicContract.GetRestaurantByData(restaurantName);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.RestaurantName, Is.EqualTo(restaurantName));
+        _restaurantStorageContract.Verify(x =>
+        x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetRestaurantByData_GetByOldName_ReturnRecord_Test()
+    {
+        //Arrange
+        var restaurantOldName = "name before";
+        var record = new RestaurantDataModel(Guid.NewGuid().ToString(),
+        "name", restaurantOldName, null);
+        _restaurantStorageContract.Setup(x =>
+        x.GetElementByOldName(restaurantOldName)).Returns(record);
+        //Act
+        var element =
+        _restaurantBusinessLogicContract.GetRestaurantByData(restaurantOldName);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.PrevRestaurantName,
+        Is.EqualTo(restaurantOldName));
+        _restaurantStorageContract.Verify(x =>
+        x.GetElementByName(It.IsAny<string>()), Times.Once);
+        _restaurantStorageContract.Verify(x =>
+        x.GetElementByOldName(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetRestaurantByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _restaurantBusinessLogicContract.GetRestaurantByData(null),
+        Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() =>
+        _restaurantBusinessLogicContract.GetRestaurantByData(string.Empty),
+        Throws.TypeOf<ArgumentNullException>());
+        _restaurantStorageContract.Verify(x =>
+        x.GetElementById(It.IsAny<string>()), Times.Never);
+        
+        _restaurantStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+        _restaurantStorageContract.Verify(x =>
+        x.GetElementByOldName(It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetRestaurantByData__GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _restaurantBusinessLogicContract.GetRestaurantByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _restaurantStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _restaurantStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+        _restaurantStorageContract.Verify(x => x.GetElementByOldName(It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetRestaurantByData_GetByNameOrOldName_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+        _restaurantBusinessLogicContract.GetRestaurantByData("name"), Throws.TypeOf<ElementNotFoundException>());
+        _restaurantStorageContract.Verify(x =>  x.GetElementById(It.IsAny<string>()), Times.Never);
+        _restaurantStorageContract.Verify(x =>  x.GetElementByName(It.IsAny<string>()), Times.Once);
+        _restaurantStorageContract.Verify(x =>  x.GetElementByOldName(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void GetRestaurantByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _restaurantStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _restaurantStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.GetRestaurantByData(Guid.NewGuid().ToString(
+        )), Throws.TypeOf<StorageException>());
+        Assert.That(() => _restaurantBusinessLogicContract.GetRestaurantByData("name"), Throws.TypeOf<StorageException>());
+        _restaurantStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _restaurantStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+        _restaurantStorageContract.Verify(x => x.GetElementByOldName(It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void GetRestaurantByData_GetByOldName_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _restaurantStorageContract.Setup(x => x.GetElementByOldName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.GetRestaurantByData("name"),
+        Throws.TypeOf<StorageException>());
+        _restaurantStorageContract.Verify(x =>  x.GetElementByName(It.IsAny<string>()), Times.Once);
+        _restaurantStorageContract.Verify(x =>  x.GetElementByOldName(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void InsertRestaurant_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new RestaurantDataModel(Guid.NewGuid().ToString(),"name", null, null);
+        _restaurantStorageContract.Setup(x => x.AddElement(It.IsAny<RestaurantDataModel>())).Callback((RestaurantDataModel x) =>
+        {
+            flag = x.Id == record.Id && x.RestaurantName == record.RestaurantName;
+        });
+        //Act
+        _restaurantBusinessLogicContract.InsertRestaurant(record);
+        //Assert
+        _restaurantStorageContract.Verify(x => x.AddElement(It.IsAny<RestaurantDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+    [Test]
+    public void InsertRestaurant_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _restaurantStorageContract.Setup(x => x.AddElement(It.IsAny<RestaurantDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() =>_restaurantBusinessLogicContract.InsertRestaurant(new(Guid.NewGuid().ToString(), "name", null, null)), Throws.TypeOf<ElementExistsException>());
+        _restaurantStorageContract.Verify(x => x.AddElement(It.IsAny<RestaurantDataModel>()), Times.Once);
+    }
+    [Test]
+    public void InsertRestaurant_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.InsertRestaurant(null), Throws.TypeOf<ArgumentNullException>());
+        _restaurantStorageContract.Verify(x => x.AddElement(It.IsAny<RestaurantDataModel>()), Times.Never);
+    }
+    [Test]
+    public void InsertRestaurant_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>  _restaurantBusinessLogicContract.InsertRestaurant(new RestaurantDataModel("id", "name", null, null)),
+        Throws.TypeOf<ValidationException>());
+        _restaurantStorageContract.Verify(x => x.AddElement(It.IsAny<RestaurantDataModel>()), Times.Never);
+    }
+    [Test]
+    public void InsertRestaurant_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _restaurantStorageContract.Setup(x => x.AddElement(It.IsAny<RestaurantDataModel>())).Throws(new StorageException(new
+        InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.InsertRestaurant(new(Guid.NewGuid().ToString(), "name", null, null)), Throws.TypeOf<StorageException>());
+        _restaurantStorageContract.Verify(x => x.AddElement(It.IsAny<RestaurantDataModel>()), Times.Once);
+    }
+    [Test]
+    public void UpdateRestaurant_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new RestaurantDataModel(Guid.NewGuid().ToString(),"name", null, null);
+        _restaurantStorageContract.Setup(x => x.UpdElement(It.IsAny<RestaurantDataModel>())).Callback((RestaurantDataModel x) =>
+        {
+            flag = x.Id == record.Id && x.RestaurantName == record.RestaurantName;
+        });
+        //Act
+        _restaurantBusinessLogicContract.UpdateRestaurant(record);
+        //Assert
+        _restaurantStorageContract.Verify(x => x.UpdElement(It.IsAny<RestaurantDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+    [Test]
+    public void UpdateRestaurant_RecordWithIncorrectData_ThrowException_Test()
+    {
+        //Arrange
+        _restaurantStorageContract.Setup(x =>
+        x.UpdElement(It.IsAny<RestaurantDataModel>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.UpdateRestaurant(new(Guid.NewGuid().ToString(), "name", null, null)), Throws.TypeOf<ElementNotFoundException>());
+        _restaurantStorageContract.Verify(x => x.UpdElement(It.IsAny<RestaurantDataModel>()), Times.Once);
+        
+    }
+    [Test]
+    public void UpdateRestaurant_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _restaurantStorageContract.Setup(x => x.UpdElement(It.IsAny<RestaurantDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.UpdateRestaurant(new(Guid.NewGuid().ToString(), "name", null, null)), Throws.TypeOf<ElementExistsException>());
+        _restaurantStorageContract.Verify(x => x.UpdElement(It.IsAny<RestaurantDataModel>()), Times.Once);
+    }
+    [Test]
+    public void UpdateRestaurant_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>_restaurantBusinessLogicContract.UpdateRestaurant(null),Throws.TypeOf<ArgumentNullException>());
+        _restaurantStorageContract.Verify(x => x.UpdElement(It.IsAny<RestaurantDataModel>()), Times.Never);
+    }
+    [Test]
+    public void UpdateRestaurant_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.UpdateRestaurant(new RestaurantDataModel("id", "name", null, null)),
+        Throws.TypeOf<ValidationException>());
+        _restaurantStorageContract.Verify(x => x.UpdElement(It.IsAny<RestaurantDataModel>()), Times.Never);
+    }
+    [Test]
+    public void UpdateRestaurant_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _restaurantStorageContract.Setup(x => x.UpdElement(It.IsAny<RestaurantDataModel>())).Throws(new StorageException(new
+        InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.UpdateRestaurant(new(Guid.NewGuid().ToString(), "name", null, null)), Throws.TypeOf<StorageException>());
+        _restaurantStorageContract.Verify(x => x.UpdElement(It.IsAny<RestaurantDataModel>()), Times.Once);
+    }
+    [Test]
+    public void DeleteRestaurant_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _restaurantStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        
+        _restaurantBusinessLogicContract.DeleteRestaurant(id);
+        //Assert
+        _restaurantStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+    [Test]
+    public void DeleteRestaurant_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _restaurantStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.DeleteRestaurant(Guid.NewGuid().ToString()),
+        Throws.TypeOf<ElementNotFoundException>());
+        _restaurantStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void DeleteRestaurant_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.DeleteRestaurant(null),
+        Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _restaurantBusinessLogicContract.DeleteRestaurant(string.Empty),
+        Throws.TypeOf<ArgumentNullException>());
+        _restaurantStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void DeleteRestaurant_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.DeleteRestaurant("id"),
+        Throws.TypeOf<ValidationException>());
+        _restaurantStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+    [Test]
+    public void DeleteRestaurant_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _restaurantStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new
+        InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _restaurantBusinessLogicContract.DeleteRestaurant(Guid.NewGuid().ToString()),
+        Throws.TypeOf<StorageException>());
+        _restaurantStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+
+
+
+
+
+}

PipingHot/PipingHotTests/BusinessLogicsContractsTests/SalaryBusinessLogicContractTests.cs

@@ -0,0 +1,423 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using PipingHotBusinessLogic.Implementations;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Enums;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class SalaryBusinessLogicContractTests
+{
+    private SalaryBusinessLogicContract _salaryBusinessLogicContract;
+    private Mock<ISalaryStorageContract> _salaryStorageContract;
+    private Mock<IOrderStorageContract> _orderStorageContract;
+    private Mock<IPostStorageContract> _postStorageContract;
+    private Mock<IWorkerStorageContract> _workerStorageContract;
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _salaryStorageContract = new Mock<ISalaryStorageContract>();
+        _orderStorageContract = new Mock<IOrderStorageContract>();
+        _postStorageContract = new Mock<IPostStorageContract>();
+        _workerStorageContract = new Mock<IWorkerStorageContract>();
+        _salaryBusinessLogicContract = new
+        SalaryBusinessLogicContract(_salaryStorageContract.Object,
+        _orderStorageContract.Object, _postStorageContract.Object,
+        _workerStorageContract.Object, new Mock<ILogger>().Object);
+    }
+    [TearDown]
+    public void TearDown()
+    {
+        _salaryStorageContract.Reset();
+        _orderStorageContract.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 orderSum = 200.0;
+        var postSalary = 2000.0;
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(),
+        It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()))
+        .Returns([new  OrderDataModel(Guid.NewGuid().ToString(),workerId, null, orderSum, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+        .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name",
+        PostType.Operator, postSalary, true, DateTime.UtcNow));
+        
+        _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","Test",Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        var sum = 0.0;
+        var expectedSum = postSalary + orderSum * 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","Test", Guid.NewGuid().ToString(),
+                DateTime.UtcNow, DateTime.UtcNow, false),
+                new(worker2Id, "Test","Test", Guid.NewGuid().ToString(),
+                DateTime.UtcNow, DateTime.UtcNow, false),
+                new(worker3Id, "Test","Test", Guid.NewGuid().ToString(),
+                DateTime.UtcNow, DateTime.UtcNow, false)
+            };
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(),
+        It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()))
+        .Returns([new OrderDataModel(Guid.NewGuid().ToString(),
+        worker1Id, null, 1,  false, []),
+        new OrderDataModel(Guid.NewGuid().ToString(), worker1Id, null,
+        1,   false, []),
+        new OrderDataModel(Guid.NewGuid().ToString(), worker2Id, null,
+        1, false, []),
+        new OrderDataModel(Guid.NewGuid().ToString(), worker3Id, null,
+        1,  false, []),
+        new OrderDataModel(Guid.NewGuid().ToString(), worker3Id, null,
+        1,  false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+        .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name",PostType.Operator, 2000, true, DateTime.UtcNow));
+        _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_WithoitOrdersByWorker_Test()
+    {
+        //Arrange
+        var postSalary = 2000.0;
+        var workerId = Guid.NewGuid().ToString();
+        _orderStorageContract.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.Operator, postSalary, true, DateTime.UtcNow));
+        _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","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_OrderStorageReturnNull_ThrowException_Test()
+    {
+        //Arrange
+        var workerId = Guid.NewGuid().ToString();
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+        .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name",
+        PostType.Operator, 2000, true, DateTime.UtcNow));
+        _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","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();
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(),
+        It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()))
+        .Returns([new OrderDataModel(Guid.NewGuid().ToString(),workerId, null, 200,  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","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();
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(),
+        It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()))
+        .Returns([new OrderDataModel(Guid.NewGuid().ToString(),workerId, null, 200, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+        .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Operator, 2000, true, DateTime.UtcNow));
+        //Act&Assert
+        Assert.That(() =>
+        _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow),Throws.TypeOf<NullListException>());
+    }
+    [Test]
+    public void CalculateSalaryByMounth_OrderStorageThrowException_ThrowException_Test()
+    {
+        //Arrange
+        var workerId = Guid.NewGuid().ToString();
+        _orderStorageContract.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.Operator, 2000, true, DateTime.UtcNow));
+        _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","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();
+        
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(),
+        It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()))
+        .Returns([new OrderDataModel(Guid.NewGuid().ToString(), workerId, null, 200,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","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();
+        _orderStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(),
+        It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>(),
+        It.IsAny<string>()))
+        .Returns([new OrderDataModel(Guid.NewGuid().ToString(),workerId, null, 200, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+        .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name",
+        PostType.Operator, 2000, true, DateTime.UtcNow));
+        _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>());
+    }
+
+
+
+
+
+
+
+
+
+
+}

PipingHot/PipingHotTests/BusinessLogicsContractsTests/WorkerBusinessLogicContractTests.cs

@@ -0,0 +1,746 @@
+
+using Microsoft.Extensions.Logging;
+using Moq;
+using PipingHotBusinessLogic.Implementations;
+using PipingHotContrast.DataModels;
+using PipingHotContrast.Exceptions;
+using PipingHotContrast.StoragesContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PipingHotTests.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);
+    }
+    [TearDown]
+    public void TearDown()
+    {
+        _workerStorageContract.Reset();
+    }
+    [Test]
+    public void GetAllWorkers_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<WorkerDataModel>()
+
+        {
+                    new(Guid.NewGuid().ToString(), "fio 1","user1@example.com",
+                    Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now,
+                    false),
+                    new(Guid.NewGuid().ToString(), "fio 2","user2@example.com",
+                    Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now,
+                    true),
+                    new(Guid.NewGuid().ToString(), "fio 3","user3@example.com",
+                    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","user1@example.com",
+            Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now,
+            false),
+            new(Guid.NewGuid().ToString(), "fio 2","user2@example.com",
+            Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now,
+            true),
+            new(Guid.NewGuid().ToString(), "fio 3","user3@example.com",
+            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","user1@example.com",
+            Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now,
+            false),
+            new(Guid.NewGuid().ToString(), "fio 2","user2@example.com",
+            Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now,
+            true),
+            new(Guid.NewGuid().ToString(), "fio 3","user3@example.com",
+            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","user1@example.com",
+            Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now,
+            false),
+            new(Guid.NewGuid().ToString(), "fio 2","user2@example.com",
+            Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now,
+            true),
+            new(Guid.NewGuid().ToString(), "fio 3","user3@example.com",
+            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", "user@example.com", 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, "user@example.com",
+        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_GetByEmail_ReturnRecord_Test()
+    {
+        //Arrange
+        var email = "user@example.com";
+        var record = new WorkerDataModel(Guid.NewGuid().ToString(), "fio",
+        email, Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now,
+        false);
+        _workerStorageContract.Setup(x => x.GetElementByEmail(email)).Returns(record);
+
+        //Act
+
+        var element = _workerBusinessLogicContract.GetWorkerByData(email);
+
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Email, Is.EqualTo(email));
+        _workerStorageContract.Verify(x =>x.GetElementByEmail(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);
+        _workerStorageContract.Verify(x => x.GetElementByEmail(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);
+        _workerStorageContract.Verify(x => x.GetElementByEmail(It.IsAny<string>()), Times.Never);
+    }
+    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);
+        _workerStorageContract.Verify(x => x.GetElementByEmail(It.IsAny<string>()), Times.Never);
+    }
+    public void GetWorkerByData_GetByEmail_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() =>
+       _workerBusinessLogicContract.GetWorkerByData("user@example.com"), Throws.TypeOf<ElementNotFoundException>());
+       _workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+       _workerStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+       _workerStorageContract.Verify(x => x.GetElementByEmail(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()));
+        _workerStorageContract.Setup(x => x.GetElementByEmail(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>());
+        Assert.That(() =>
+        _workerBusinessLogicContract.GetWorkerByData("user@example.com"),  Throws.TypeOf<StorageException>());
+        _workerStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _workerStorageContract.Verify(x =>x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+        _workerStorageContract.Verify(x => x.GetElementByEmail(It.IsAny<string>()), Times.Once);
+    }
+    [Test]
+    public void InsertWorker_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new WorkerDataModel(Guid.NewGuid().ToString(), "fio", "user@example.com", 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.Email == record.Email &&
+            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", "user@example.com",
+        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", "user@example.com", 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", "user@example.com",
+        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", "user@example.com",
+        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.Email == record.Email &&
+            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", "user@example.com",
+        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", "user@example.com", 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", "user@example.com",
+        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);
+    }
+
+
+
+
+
+
+
+
+
+
+}

PipingHot/PipingHotTests/DataModelsTests/OrderDataModelTests.cs

@@ -14,57 +14,57 @@ internal class OrderDataModelTests
     [Test]
     public void IdIsNullOrEmptyTest()
     {
-        var order = CreateDataModel(null, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10,  CreateSubDataModel());
+        var order = CreateDataModel(null, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, false,  CreateSubDataModel());
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
-        order = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10,  CreateSubDataModel());
+        order = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, false,  CreateSubDataModel());
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void IdIsNotGuidTest()
     {
-        var order = CreateDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10,  CreateSubDataModel());
+        var order = CreateDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, false,  CreateSubDataModel());
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void WorkerIdIsNullOrEmptyTest()
     {
-        var order = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), 10,  CreateSubDataModel());
+        var order = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), 10, false,  CreateSubDataModel());
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
-        order = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), 10,  CreateSubDataModel());
+        order = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), 10, false, CreateSubDataModel());
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void WorkerIdIsNotGuidTest()
     {
-        var order = CreateDataModel(Guid.NewGuid().ToString(), "employeeId", Guid.NewGuid().ToString(), 10,  CreateSubDataModel());
+        var order = CreateDataModel(Guid.NewGuid().ToString(), "employeeId", Guid.NewGuid().ToString(), 10, false, CreateSubDataModel());
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void RestaurantIdIsNotGuidTest()
     {
-        var order = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "restaurantId", 10,  CreateSubDataModel());
+        var order = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "restaurantId", 10, false,  CreateSubDataModel());
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void SumIsLessOrZeroTest()
     {
-        var order = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, CreateSubDataModel());
+        var order = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, false, CreateSubDataModel());
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
-        order = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10,  CreateSubDataModel());
+        order = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10, false, CreateSubDataModel());
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void ProductsIsNullOrEmptyTest()
     {
-        var order = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10,  null);
+        var order = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, false, null);
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
-        order = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10,  []);
+        order = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, false,[]);
         Assert.That(() => order.Validate(), Throws.TypeOf<ValidationException>());
     }
 
@@ -75,8 +75,9 @@ internal class OrderDataModelTests
         var workerId = Guid.NewGuid().ToString();
         var restaurantId = Guid.NewGuid().ToString();
         var sum = 10;
+        var isCancel = true;
         var products = CreateSubDataModel();
-        var order = CreateDataModel(orderId, workerId, restaurantId, sum,  products);
+        var order = CreateDataModel(orderId, workerId, restaurantId, sum, isCancel, products);
         Assert.That(() => order.Validate(), Throws.Nothing);
         Assert.Multiple(() =>
         {
@@ -84,12 +85,13 @@ internal class OrderDataModelTests
             Assert.That(order.WorkerId, Is.EqualTo(workerId));
             Assert.That(order.RestaurantId, Is.EqualTo(restaurantId));
             Assert.That(order.Sum, Is.EqualTo(sum));
+            Assert.That(order.IsCancel, Is.EqualTo(isCancel));
             Assert.That(order.Products, Is.EquivalentTo(products));
         });
     }
 
-    private static OrderDataModel CreateDataModel(string? id, string? workerId, string? restaurantId, double sum,  List<OrderProductDataModel>? products) =>
-    new(id, workerId, restaurantId, sum,  products);
+    private static OrderDataModel CreateDataModel(string? id, string? workerId, string? restaurantId, double sum, bool isCancel, List<OrderProductDataModel>? products) =>
+    new(id, workerId, restaurantId, sum, isCancel, products);
 
     private static List<OrderProductDataModel> CreateSubDataModel()
         => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];

PipingHot/PipingHotTests/DataModelsTests/PostDataModelTests.cs

@@ -20,57 +20,41 @@ internal class PostDataModelTests
     [Test]
     public void IdIsNullOrEmptyTest()
     {
-        var post = CreateDataModel(null, Guid.NewGuid().ToString(), "name", PostType.Operator, 10, true, DateTime.UtcNow);
+        var post = CreateDataModel(null,  "name", PostType.Operator, 10, true, DateTime.UtcNow);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-        post = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), "name", PostType.Operator, 10, true, DateTime.UtcNow);
+        post = CreateDataModel(string.Empty,  "name", PostType.Operator, 10, true, DateTime.UtcNow);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void IdIsNotGuidTest()
     {
-        var post = CreateDataModel("id", Guid.NewGuid().ToString(), "name", PostType.Operator, 10, true, DateTime.UtcNow);
-        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-    }
-
-    [Test]
-    public void PostIdIsNullEmptyTest()
-    {
-        var post = CreateDataModel(Guid.NewGuid().ToString(), null, "name", PostType.Operator, 10, true, DateTime.UtcNow);
-        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-        post = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "name", PostType.Operator, 10, true, DateTime.UtcNow);
-        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-    }
-
-    [Test]
-    public void PostIdIsNotGuidTest()
-    {
-        var post = CreateDataModel(Guid.NewGuid().ToString(), "postId", "name", PostType.Operator, 10, true, DateTime.UtcNow);
+        var post = CreateDataModel("id",  "name", PostType.Operator, 10, true, DateTime.UtcNow);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void PostNameIsEmptyTest()//?
     {
-        var manufacturer = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, PostType.Operator, 10, true, DateTime.UtcNow);
+        var manufacturer = CreateDataModel(Guid.NewGuid().ToString(),  null, PostType.Operator, 10, true, DateTime.UtcNow);
         Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
-        manufacturer = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), string.Empty, PostType.Operator, 10, true, DateTime.UtcNow);
+        manufacturer = CreateDataModel(Guid.NewGuid().ToString(),  string.Empty, PostType.Operator, 10, true, DateTime.UtcNow);
         Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void PostTypeIsNoneTest()
     {
-        var post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "name", PostType.None, 10, true, DateTime.UtcNow);
+        var post = CreateDataModel(Guid.NewGuid().ToString(),  "name", PostType.None, 10, true, DateTime.UtcNow);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
     [Test]
     public void SalaryIsLessOrZeroTest()
     {
-        var post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "name", PostType.Operator, 0, true, DateTime.UtcNow);
+        var post = CreateDataModel(Guid.NewGuid().ToString(),  "name", PostType.Operator, 0, true, DateTime.UtcNow);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
-        post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "name", PostType.Operator, -10, true, DateTime.UtcNow);
+        post = CreateDataModel(Guid.NewGuid().ToString(), "name", PostType.Operator, -10, true, DateTime.UtcNow);
         Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
     }
 
@@ -78,18 +62,16 @@ internal class PostDataModelTests
     public void AllFieldsIsCorrectTest()
     {
         var postId = Guid.NewGuid().ToString();
-        var postPostId = Guid.NewGuid().ToString();
         var postName = "name";
         var postType = PostType.Operator;
         var salary = 10;
         var isActual = false;
         var changeDate = DateTime.UtcNow.AddDays(-1);
-        var post = CreateDataModel(postId, postPostId, postName, postType, salary, isActual, changeDate);
+        var post = CreateDataModel(postId, postName, postType, salary, isActual, changeDate);
         Assert.That(() => post.Validate(), Throws.Nothing);
         Assert.Multiple(() =>
         {
             Assert.That(post.Id, Is.EqualTo(postId));
-            Assert.That(post.PostId, Is.EqualTo(postPostId));
             Assert.That(post.PostName, Is.EqualTo(postName));
             Assert.That(post.PostType, Is.EqualTo(postType));
             Assert.That(post.Salary, Is.EqualTo(salary));
@@ -97,6 +79,6 @@ internal class PostDataModelTests
             Assert.That(post.ChangeDate, Is.EqualTo(changeDate));
         });
     }
-    private static PostDataModel CreateDataModel(string? id, string? postId, string? postName, PostType postType, double salary, bool isActual, DateTime changeDate) =>
-       new(id, postId, postName, postType, salary, isActual, changeDate);
+    private static PostDataModel CreateDataModel(string? id,  string? postName, PostType postType, double salary, bool isActual, DateTime changeDate) =>
+       new(id, postName, postType, salary, isActual, changeDate);
 }

PipingHot/PipingHotTests/PipingHotTests.csproj

@@ -11,12 +11,14 @@
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="6.0.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
+    <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="NUnit" Version="4.2.2" />
     <PackageReference Include="NUnit.Analyzers" Version="4.4.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
   </ItemGroup>
 
   <ItemGroup>
+    <ProjectReference Include="..\PipingHotBusinessLogic\PipingHotBusinessLogic.csproj" />
     <ProjectReference Include="..\PipingHot\PipingHotContrast.csproj" />
   </ItemGroup>