add tests for temporary business logic implementations

TheCyclopsProject/TheCyclopsBusinessLogic/Implementations/ComponentBusinessLogicContract.cs

@@ -1,11 +1,16 @@
-using TheCyclopsContracts.BusinessLogicContracts;
+using Microsoft.Extensions.Logging;
+using TheCyclopsContracts.BusinessLogicContracts;
 using TheCyclopsContracts.DataModels;
 using TheCyclopsContracts.Enums;
+using TheCyclopsContracts.StoragesContracts;
 
 namespace TheCyclopsBusinessLogic.Implementations;
 
-internal class ComponentBusinessLogicContract : IComponentBusinessLogicContract
+internal class ComponentBusinessLogicContract(IComponentStorageContract componentStorageContract, ILogger logger) : IComponentBusinessLogicContract
 {
+    private readonly ILogger _logger = logger;
+    private readonly IComponentStorageContract _componentStorageContract = componentStorageContract;
+
     public List<ComponentDataModel> GetAllComponents(bool onlyActive = true)
     {
         return [];

TheCyclopsProject/TheCyclopsBusinessLogic/Implementations/EmployeeBusinessLogicContract.cs

@@ -1,10 +1,15 @@
-using TheCyclopsContracts.BusinessLogicContracts;
+using Microsoft.Extensions.Logging;
+using TheCyclopsContracts.BusinessLogicContracts;
 using TheCyclopsContracts.DataModels;
+using TheCyclopsContracts.StoragesContracts;
 
 namespace TheCyclopsBusinessLogic.Implementations;
 
-internal class EmployeeBusinessLogicContract : IEmployeeBusinessLogicContract
+internal class EmployeeBusinessLogicContract(IEmployeeStorageContract employeeStorageContract, ILogger logger) : IEmployeeBusinessLogicContract
 {
+    private readonly ILogger _logger = logger;
+    private readonly IEmployeeStorageContract _employeeStorageContract = employeeStorageContract;
+
     public List<EmployeeDataModel> GetAllEmployees(bool onlyActive = true)
     {
         return [];

TheCyclopsProject/TheCyclopsBusinessLogic/Implementations/InstallationBusinessLogicContract.cs

@@ -1,10 +1,15 @@
-using TheCyclopsContracts.BusinessLogicContracts;
+using Microsoft.Extensions.Logging;
+using TheCyclopsContracts.BusinessLogicContracts;
 using TheCyclopsContracts.DataModels;
+using TheCyclopsContracts.StoragesContracts;
 
 namespace TheCyclopsBusinessLogic.Implementations;
 
-internal class InstallationBusinessLogicContract : IInstallationBusinessLogicContract
+internal class InstallationBusinessLogicContract(IInstallationStorageContract installationStorageContract, ILogger logger) : IInstallationBusinessLogicContract
 {
+    private readonly ILogger _logger = logger;
+    private readonly IInstallationStorageContract _installationStorageContract = installationStorageContract;
+
     public List<InstallationDataModel> GetAllInstallationsByPeriod(DateTime fromDate, DateTime toDate)
     {
         return [];

TheCyclopsProject/TheCyclopsBusinessLogic/Implementations/PostBusinessLogicContract.cs

@@ -1,11 +1,16 @@
-using TheCyclopsContracts.BusinessLogicContracts;
+using Microsoft.Extensions.Logging;
+using TheCyclopsContracts.BusinessLogicContracts;
 using TheCyclopsContracts.DataModels;
 using TheCyclopsContracts.Enums;
+using TheCyclopsContracts.StoragesContracts;
 
 namespace TheCyclopsBusinessLogic.Implementations;
 
-internal class PostBusinessLogicContract : IPostBusinessLogicContract
+internal class PostBusinessLogicContract(IPostStorageContract postStorageContract, ILogger logger) : IPostBusinessLogicContract
 {
+    private readonly ILogger _logger = logger;
+    private readonly IPostStorageContract _postStorageContract = postStorageContract;
+
     public List<PostDataModel> GetAllPosts(bool onlyActive)
     {
         return [];

TheCyclopsProject/TheCyclopsBusinessLogic/Implementations/SalaryBusinessLogicContract.cs

@@ -1,10 +1,21 @@
-using TheCyclopsContracts.BusinessLogicContracts;
+using Microsoft.Extensions.Logging;
+using TheCyclopsContracts.BusinessLogicContracts;
 using TheCyclopsContracts.DataModels;
+using TheCyclopsContracts.StoragesContracts;
 
 namespace TheCyclopsBusinessLogic.Implementations;
 
-internal class SalaryBusinessLogicContract : ISalaryBusinessLogicContract
+internal class SalaryBusinessLogicContract(ISalaryStorageContract salaryStorageContract,
+    IInstallationStorageContract installationStorageContract,
+    IPostStorageContract postStorageContract, IEmployeeStorageContract employeeStorageContract,
+    ILogger logger) : ISalaryBusinessLogicContract
 {
+    private readonly ILogger _logger = logger;
+    private readonly ISalaryStorageContract _salaryStorageContract = salaryStorageContract;
+    private readonly IInstallationStorageContract _installationStorageContract = installationStorageContract;
+    private readonly IPostStorageContract _postStorageContract = postStorageContract;
+    private readonly IEmployeeStorageContract _employeeStorageContract = employeeStorageContract;
+
     public List<SalaryDataModel> GetAllSalariesByPeriod(DateTime fromDate, DateTime toDate)
     {
         return [];

TheCyclopsProject/TheCyclopsBusinessLogic/TheCyclopsBusinessLogic.csproj

@@ -6,6 +6,15 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+	<ItemGroup>
+		<InternalsVisibleTo Include="TheCyclopsTests" />
+		<InternalsVisibleTo Include="DynamicProxyGenAssembly2" />
+	</ItemGroup>
+
+	<ItemGroup>
+	  <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.2" />
+	</ItemGroup>
+	
   <ItemGroup>
     <ProjectReference Include="..\TheCyclopsContracts\TheCyclopsContracts.csproj" />
   </ItemGroup>

TheCyclopsProject/TheCyclopsTests/BusinessLogicsContractsTests/ComponentBusinessLogicContractTests.cs

@@ -0,0 +1,356 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using TheCyclopsBusinessLogic.Implementations;
+using TheCyclopsContracts.DataModels;
+using TheCyclopsContracts.Enums;
+using TheCyclopsContracts.Exceptions;
+using TheCyclopsContracts.StoragesContracts;
+
+namespace TheCyclopsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class ComponentBusinessLogicContractTests
+{
+    private ComponentBusinessLogicContract _componentBusinessLogicContract;
+    private Mock<IComponentStorageContract> _componentStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _componentStorageContract = new Mock<IComponentStorageContract>();
+        _componentBusinessLogicContract = new ComponentBusinessLogicContract(_componentStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _componentStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllComponents_ReturnListOfRecords_Test()
+    {
+        // Arrange
+        var listOriginal = new List<ComponentDataModel>()
+            {
+                new(Guid.NewGuid().ToString(), "name 1", ComponentType.Other, 10, false),
+                new(Guid.NewGuid().ToString(), "name 2", ComponentType.Other, 10, true),
+                new(Guid.NewGuid().ToString(), "name 3", ComponentType.Other, 10, false),
+            };
+        _componentStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns(listOriginal);
+
+        // Act
+        var listOnlyActive = _componentBusinessLogicContract.GetAllComponents(true);
+        var list = _componentBusinessLogicContract.GetAllComponents(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));
+        });
+        _componentStorageContract.Verify(x => x.GetList(true), Times.Once);
+        _componentStorageContract.Verify(x => x.GetList(false), Times.Once);
+    }
+
+    [Test]
+    public void GetAllComponents_ReturnEmptyList_Test()
+    {
+        // Arrange
+        _componentStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Returns(new List<ComponentDataModel>());
+
+        // Act
+        var listOnlyActive = _componentBusinessLogicContract.GetAllComponents(true);
+        var list = _componentBusinessLogicContract.GetAllComponents(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));
+        });
+        _componentStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Exactly(2));
+    }
+
+    [Test]
+    public void GetAllComponents_ReturnNull_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.GetAllComponents(It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _componentStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllComponents_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _componentStorageContract.Setup(x => x.GetList(It.IsAny<bool>())).Throws(new StorageException(new InvalidOperationException()));
+
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.GetAllComponents(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _componentStorageContract.Verify(x => x.GetList(It.IsAny<bool>()), Times.Once);
+    }
+
+    [Test]
+    public void GetComponentByData_GetById_ReturnRecord_Test()
+    {
+        // Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new ComponentDataModel(id, "name", ComponentType.Other, 10, false);
+        _componentStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+
+        // Act
+        var element = _componentBusinessLogicContract.GetComponentByData(id);
+
+        // Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _componentStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetComponentByData_GetByName_ReturnRecord_Test()
+    {
+        // Arrange
+        var name = "name";
+        var record = new ComponentDataModel(Guid.NewGuid().ToString(), name, ComponentType.Other, 10, false);
+        _componentStorageContract.Setup(x => x.GetElementByName(name)).Returns(record);
+
+        // Act
+        var element = _componentBusinessLogicContract.GetComponentByData(name);
+
+        // Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.ComponentName, Is.EqualTo(name));
+        _componentStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetComponentByData_EmptyData_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.GetComponentByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _componentBusinessLogicContract.GetComponentByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _componentStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
+        _componentStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetComponentByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.GetComponentByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _componentStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetComponentByData_GetByName_NotFoundRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.GetComponentByData("name"), Throws.TypeOf<ElementNotFoundException>());
+        _componentStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetComponentByData_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _componentStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _componentStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.GetComponentByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        Assert.That(() => _componentBusinessLogicContract.GetComponentByData("name"), Throws.TypeOf<StorageException>());
+        _componentStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _componentStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertComponent_CorrectRecord_Test()
+    {
+        // Arrange
+        var flag = false;
+        var record = new ComponentDataModel(Guid.NewGuid().ToString(), "name", ComponentType.Other, 10, false);
+        _componentStorageContract.Setup(x => x.AddElement(It.IsAny<ComponentDataModel>()))
+            .Callback((ComponentDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.ComponentName == record.ComponentName && x.ComponentType == record.ComponentType &&
+                       x.Price == record.Price && x.IsDeleted == record.IsDeleted;
+            });
+
+        // Act
+        _componentBusinessLogicContract.InsertComponent(record);
+
+        // Assert
+        _componentStorageContract.Verify(x => x.AddElement(It.IsAny<ComponentDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertComponent_RecordWithExistsData_ThrowException_Test()
+    {
+        // Arrange
+        _componentStorageContract.Setup(x => x.AddElement(It.IsAny<ComponentDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.InsertComponent(new(Guid.NewGuid().ToString(), "name", ComponentType.Other, 10, false)), Throws.TypeOf<ElementExistsException>());
+        _componentStorageContract.Verify(x => x.AddElement(It.IsAny<ComponentDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertComponent_NullRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.InsertComponent(null), Throws.TypeOf<ArgumentNullException>());
+        _componentStorageContract.Verify(x => x.AddElement(It.IsAny<ComponentDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertComponent_InvalidRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.InsertComponent(new ComponentDataModel("id", "name", ComponentType.Other, 10, false)), Throws.TypeOf<ValidationException>());
+        _componentStorageContract.Verify(x => x.AddElement(It.IsAny<ComponentDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertComponent_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _componentStorageContract.Setup(x => x.AddElement(It.IsAny<ComponentDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.InsertComponent(new(Guid.NewGuid().ToString(), "name", ComponentType.Other, 10, false)), Throws.TypeOf<StorageException>());
+        _componentStorageContract.Verify(x => x.AddElement(It.IsAny<ComponentDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateComponent_CorrectRecord_Test()
+    {
+        // Arrange
+        var flag = false;
+        var record = new ComponentDataModel(Guid.NewGuid().ToString(), "name", ComponentType.Other, 10, false);
+        _componentStorageContract.Setup(x => x.UpdElement(It.IsAny<ComponentDataModel>()))
+            .Callback((ComponentDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.ComponentName == record.ComponentName && x.ComponentType == record.ComponentType &&
+                       x.Price == record.Price && x.IsDeleted == record.IsDeleted;
+            });
+
+        // Act
+        _componentBusinessLogicContract.UpdateComponent(record);
+
+        // Assert
+        _componentStorageContract.Verify(x => x.UpdElement(It.IsAny<ComponentDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void UpdateComponent_RecordWithIncorrectData_ThrowException_Test()
+    {
+        // Arrange
+        _componentStorageContract.Setup(x => x.UpdElement(It.IsAny<ComponentDataModel>())).Throws(new ElementNotFoundException(""));
+
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.UpdateComponent(new(Guid.NewGuid().ToString(), "name", ComponentType.Other, 10, false)), Throws.TypeOf<ElementNotFoundException>());
+        _componentStorageContract.Verify(x => x.UpdElement(It.IsAny<ComponentDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateComponent_RecordWithExistsData_ThrowException_Test()
+    {
+        // Arrange
+        _componentStorageContract.Setup(x => x.UpdElement(It.IsAny<ComponentDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.UpdateComponent(new(Guid.NewGuid().ToString(), "anme", ComponentType.Other, 10, false)), Throws.TypeOf<ElementExistsException>());
+        _componentStorageContract.Verify(x => x.UpdElement(It.IsAny<ComponentDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateComponent_NullRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.UpdateComponent(null), Throws.TypeOf<ArgumentNullException>());
+        _componentStorageContract.Verify(x => x.UpdElement(It.IsAny<ComponentDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateComponent_InvalidRecord_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.UpdateComponent(new ComponentDataModel("id", "name", ComponentType.Other, 10, false)), Throws.TypeOf<ValidationException>());
+        _componentStorageContract.Verify(x => x.UpdElement(It.IsAny<ComponentDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateComponent_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _componentStorageContract.Setup(x => x.UpdElement(It.IsAny<ComponentDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.UpdateComponent(new(Guid.NewGuid().ToString(), "name", ComponentType.Other, 10, false)), Throws.TypeOf<StorageException>());
+        _componentStorageContract.Verify(x => x.UpdElement(It.IsAny<ComponentDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteComponent_CorrectRecord_Test()
+    {
+        // Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _componentStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+
+        // Act
+        _componentBusinessLogicContract.DeleteComponent(id);
+
+        // Assert
+        _componentStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void DeleteComponent_RecordWithIncorrectId_ThrowException_Test()
+    {
+        // Arrange
+        var id = Guid.NewGuid().ToString();
+        _componentStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.DeleteComponent(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _componentStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteComponent_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.DeleteComponent(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _componentBusinessLogicContract.DeleteComponent(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _componentStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteComponent_IdIsNotGuid_ThrowException_Test()
+    {
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.DeleteComponent("id"), Throws.TypeOf<ValidationException>());
+        _componentStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteComponent_StorageThrowError_ThrowException_Test()
+    {
+        // Arrange
+        _componentStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+
+        // Act & Assert
+        Assert.That(() => _componentBusinessLogicContract.DeleteComponent(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _componentStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}

TheCyclopsProject/TheCyclopsTests/BusinessLogicsContractsTests/EmployeeBusinessLogicContractTest.cs

@@ -0,0 +1,557 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using TheCyclopsBusinessLogic.Implementations;
+using TheCyclopsContracts.DataModels;
+using TheCyclopsContracts.Exceptions;
+using TheCyclopsContracts.StoragesContracts;
+
+namespace TheCyclopsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class EmployeeBusinessLogicContractTest
+{
+    private EmployeeBusinessLogicContract _employeeBusinessLogicContract;
+    private Mock<IEmployeeStorageContract> _employeeStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _employeeStorageContract = new Mock<IEmployeeStorageContract>();
+        _employeeBusinessLogicContract = new EmployeeBusinessLogicContract(_employeeStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _employeeStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllEmployees_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<EmployeeDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", "email@mail.com",Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", "email@mail.com",Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+        };
+        _employeeStorageContract.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 = _employeeBusinessLogicContract.GetAllEmployees(true);
+        var list = _employeeBusinessLogicContract.GetAllEmployees(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));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, null, null, null, null, null), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, null, null, null, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployees_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _employeeStorageContract.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 = _employeeBusinessLogicContract.GetAllEmployees(true);
+        var list = _employeeBusinessLogicContract.GetAllEmployees(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));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), null, null, null, null, null), Times.Exactly(2));
+    }
+
+    [Test]
+    public void GetAllEmployees_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployees(It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _employeeStorageContract.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 GetAllEmployees_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.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(() => _employeeBusinessLogicContract.GetAllEmployees(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), null, null, null, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByPost_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var postId = Guid.NewGuid().ToString();
+        var listOriginal = new List<EmployeeDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1","email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", "email@mail.com",Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", "email@mail.com",Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+        };
+        _employeeStorageContract.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 = _employeeBusinessLogicContract.GetAllEmployeesByPost(postId, true);
+        var list = _employeeBusinessLogicContract.GetAllEmployeesByPost(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));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, postId, null, null, null, null), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, postId, null, null, null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByPost_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _employeeStorageContract.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 = _employeeBusinessLogicContract.GetAllEmployeesByPost(Guid.NewGuid().ToString(), true);
+        var list = _employeeBusinessLogicContract.GetAllEmployeesByPost(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));
+        });
+        _employeeStorageContract.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 GetAllEmployeesByPost_PostIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByPost(null, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByPost(string.Empty, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
+        _employeeStorageContract.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 GetAllEmployeesByPost_PostIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByPost("postId", It.IsAny<bool>()), Throws.TypeOf<ValidationException>());
+        _employeeStorageContract.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 GetAllEmployeesByPost_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByPost(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _employeeStorageContract.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 GetAllEmployeesByPost_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.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(() => _employeeBusinessLogicContract.GetAllEmployeesByPost(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.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 GetAllEmployeesByBirthDate_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var listOriginal = new List<EmployeeDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", "email@mail.com",Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", "email@mail.com",Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3","email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+        };
+        _employeeStorageContract.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 = _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(date, date.AddDays(1), true);
+        var list = _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(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));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, null, date, date.AddDays(1), null, null), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, null, date, date.AddDays(1), null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByBirthDate_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _employeeStorageContract.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 = _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), true);
+        var list = _employeeBusinessLogicContract.GetAllEmployees(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));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), null, null), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByBirthDate_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(date, date, It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(date, date.AddSeconds(-1), It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        _employeeStorageContract.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 GetAllEmployeesByBirthDate_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _employeeStorageContract.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 GetAllEmployeesByBirthDate_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.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(() => _employeeBusinessLogicContract.GetAllEmployeesByBirthDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.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 GetAllEmployeesByEmploymentDate_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var listOriginal = new List<EmployeeDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), "fio 1", "email@mail.com",Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+            new(Guid.NewGuid().ToString(), "fio 2", "email@mail.com",Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, true),
+            new(Guid.NewGuid().ToString(), "fio 3", "email@mail.com",Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false),
+        };
+        _employeeStorageContract.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 = _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(date, date.AddDays(1), true);
+        var list = _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(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));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, null, null, null, date, date.AddDays(1)), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, null, null, null, date, date.AddDays(1)), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByEmploymentDate_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _employeeStorageContract.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 = _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), true);
+        var list = _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(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));
+        });
+        _employeeStorageContract.Verify(x => x.GetList(true, null, null, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetList(false, null, null, null, It.IsAny<DateTime?>(), It.IsAny<DateTime?>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllEmployeesByEmploymentDate_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(date, date, It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(date, date.AddSeconds(-1), It.IsAny<bool>()), Throws.TypeOf<IncorrectDatesException>());
+        _employeeStorageContract.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 GetAllEmployeesByEmploymentDate_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
+        _employeeStorageContract.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 GetAllEmployeesByEmploymentDate_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.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(() => _employeeBusinessLogicContract.GetAllEmployeesByEmploymentDate(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.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 GetEmployeeByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new EmployeeDataModel(id, "fio", "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+        _employeeStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        //Act
+        var element = _employeeBusinessLogicContract.GetEmployeeByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetEmployeeByData_GetByFio_ReturnRecord_Test()
+    {
+        //Arrange
+        var fio = "fio";
+        var record = new EmployeeDataModel(Guid.NewGuid().ToString(), fio, "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+        _employeeStorageContract.Setup(x => x.GetElementByFIO(fio)).Returns(record);
+        //Act
+        var element = _employeeBusinessLogicContract.GetEmployeeByData(fio);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.FIO, Is.EqualTo(fio));
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetEmployeeByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetEmployeeByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetEmployeeByData_GetByFio_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData("fio"), Throws.TypeOf<ElementNotFoundException>());
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetEmployeeByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        _employeeStorageContract.Setup(x => x.GetElementByFIO(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        Assert.That(() => _employeeBusinessLogicContract.GetEmployeeByData("fio"), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+        _employeeStorageContract.Verify(x => x.GetElementByFIO(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertEmployee_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new EmployeeDataModel(Guid.NewGuid().ToString(), "fio", "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+        _employeeStorageContract.Setup(x => x.AddElement(It.IsAny<EmployeeDataModel>()))
+            .Callback((EmployeeDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.FIO == record.FIO && x.PostId == record.PostId && x.BirthDate == record.BirthDate &&
+                    x.EmploymentDate == record.EmploymentDate && x.IsDeleted == record.IsDeleted;
+            });
+        //Act
+        _employeeBusinessLogicContract.InsertEmployee(record);
+        //Assert
+        _employeeStorageContract.Verify(x => x.AddElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertEmployee_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.AddElement(It.IsAny<EmployeeDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.InsertEmployee(new(Guid.NewGuid().ToString(), "fio", "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ElementExistsException>());
+        _employeeStorageContract.Verify(x => x.AddElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertEmployee_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.InsertEmployee(null), Throws.TypeOf<ArgumentNullException>());
+        _employeeStorageContract.Verify(x => x.AddElement(It.IsAny<EmployeeDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertEmployee_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.InsertEmployee(new EmployeeDataModel("id", "fio", "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ValidationException>());
+        _employeeStorageContract.Verify(x => x.AddElement(It.IsAny<EmployeeDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertEmployee_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.AddElement(It.IsAny<EmployeeDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.InsertEmployee(new(Guid.NewGuid().ToString(), "fio", "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.AddElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateEmployee_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new EmployeeDataModel(Guid.NewGuid().ToString(), "fio", "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false);
+        _employeeStorageContract.Setup(x => x.UpdElement(It.IsAny<EmployeeDataModel>()))
+            .Callback((EmployeeDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.FIO == record.FIO && x.PostId == record.PostId && x.BirthDate == record.BirthDate &&
+                    x.EmploymentDate == record.EmploymentDate && x.IsDeleted == record.IsDeleted;
+            });
+        //Act
+        _employeeBusinessLogicContract.UpdateEmployee(record);
+        //Assert
+        _employeeStorageContract.Verify(x => x.UpdElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void UpdateEmployee_RecordWithIncorrectData_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.UpdElement(It.IsAny<EmployeeDataModel>())).Throws(new ElementNotFoundException(""));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.UpdateEmployee(new(Guid.NewGuid().ToString(), "fio", "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ElementNotFoundException>());
+        _employeeStorageContract.Verify(x => x.UpdElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void UpdateEmployee_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.UpdateEmployee(null), Throws.TypeOf<ArgumentNullException>());
+        _employeeStorageContract.Verify(x => x.UpdElement(It.IsAny<EmployeeDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateEmployee_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.UpdateEmployee(new EmployeeDataModel("id", "fio", "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<ValidationException>());
+        _employeeStorageContract.Verify(x => x.UpdElement(It.IsAny<EmployeeDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void UpdateEmployee_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.UpdElement(It.IsAny<EmployeeDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.UpdateEmployee(new(Guid.NewGuid().ToString(), "fio", "email@mail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(-1), DateTime.Now, false)), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.UpdElement(It.IsAny<EmployeeDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteEmployee_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _employeeStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _employeeBusinessLogicContract.DeleteEmployee(id);
+        //Assert
+        _employeeStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void DeleteEmployee_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _employeeStorageContract.Setup(x => x.DelElement(It.Is((string x) => x != id))).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.DeleteEmployee(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _employeeStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void DeleteEmployee_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.DeleteEmployee(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _employeeBusinessLogicContract.DeleteEmployee(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _employeeStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteEmployee_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.DeleteEmployee("id"), Throws.TypeOf<ValidationException>());
+        _employeeStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void DeleteEmployee_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _employeeStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _employeeBusinessLogicContract.DeleteEmployee(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _employeeStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}

TheCyclopsProject/TheCyclopsTests/BusinessLogicsContractsTests/InstallationBusinessLogicContractTest.cs

@@ -0,0 +1,418 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using TheCyclopsBusinessLogic.Implementations;
+using TheCyclopsContracts.DataModels;
+using TheCyclopsContracts.Exceptions;
+using TheCyclopsContracts.StoragesContracts;
+
+namespace TheCyclopsTests.BusinessLogicsContractsTests;
+
+internal class InstallationBusinessLogicContractTest
+{
+    private InstallationBusinessLogicContract _installationBusinessLogicContract;
+    private Mock<IInstallationStorageContract> _installationStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _installationStorageContract = new Mock<IInstallationStorageContract>();
+        _installationBusinessLogicContract = new InstallationBusinessLogicContract(_installationStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _installationStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllInstallationsByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var listOriginal = new List<InstallationDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false,
+                [new InstallationComponentDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false, []),
+        };
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _installationBusinessLogicContract.GetAllInstallationsByPeriod(date, date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _installationStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _installationBusinessLogicContract.GetAllInstallationsByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByPeriod(date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByPeriod(date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllInstallationsByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByPeriod(DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByEmployeeByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var employeeId = Guid.NewGuid().ToString();
+        var listOriginal = new List<InstallationDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false,
+                [new InstallationComponentDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false, []),
+        };
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _installationBusinessLogicContract.GetAllInstallationsByEmployeeByPeriod(employeeId, date, date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _installationStorageContract.Verify(x => x.GetList(date, date.AddDays(1), employeeId, null), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByEmployeeByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _installationBusinessLogicContract.GetAllInstallationsByEmployeeByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByEmployeeByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByEmployeeByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByEmployeeByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllInstallationsByEmployeeByPeriod_EmployeeIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByEmployeeByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByEmployeeByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllInstallationsByEmployeeByPeriod_EmployeeIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByEmployeeByPeriod("employeeId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ValidationException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllInstallationsByEmployeeByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByEmployeeByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByEmployeeByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByEmployeeByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByComponentByPeriod_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        var componentId = Guid.NewGuid().ToString();
+        var listOriginal = new List<InstallationDataModel>()
+        {
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false,
+                [new InstallationComponentDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false, []),
+            new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false, []),
+        };
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>())).Returns(listOriginal);
+        //Act
+        var list = _installationBusinessLogicContract.GetAllInstallationsByComponentByPeriod(componentId, date, date.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _installationStorageContract.Verify(x => x.GetList(date, date.AddDays(1), null, componentId), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByComponentByPeriod_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _installationBusinessLogicContract.GetAllInstallationsByComponentByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1));
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Has.Count.EqualTo(0));
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByComponentByPeriod_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var date = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByComponentByPeriod(Guid.NewGuid().ToString(), date, date), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByComponentByPeriod(Guid.NewGuid().ToString(), date, date.AddSeconds(-1)), Throws.TypeOf<IncorrectDatesException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllInstallationsByComponentByPeriod_ComponentIdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByComponentByPeriod(null, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByComponentByPeriod(string.Empty, DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ArgumentNullException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllInstallationsByComponentByPeriod_ComponentIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByComponentByPeriod("componentId", DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<ValidationException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllInstallationsByComponentByPeriod_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByComponentByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<NullListException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetAllInstallationsByComponentByPeriod_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetAllInstallationsByComponentByPeriod(Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow.AddDays(1)), Throws.TypeOf<StorageException>());
+        _installationStorageContract.Verify(x => x.GetList(It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>(), It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetInstallationByData_GetById_ReturnRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var record = new InstallationDataModel(id, Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false,
+                [new InstallationComponentDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        _installationStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
+        //Act
+        var element = _installationBusinessLogicContract.GetInstallationByData(id);
+        //Assert
+        Assert.That(element, Is.Not.Null);
+        Assert.That(element.Id, Is.EqualTo(id));
+        _installationStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetInstallationByData_EmptyData_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetInstallationByData(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _installationBusinessLogicContract.GetInstallationByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _installationStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+    }
+
+
+    [Test]
+    public void GetInstallationByData_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetInstallationByData("installationId"), Throws.TypeOf<ValidationException>());
+        _installationStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetInstallationByData_GetById_NotFoundRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetInstallationByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _installationStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void GetInstallationByData_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _installationStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.GetInstallationByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _installationStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertInstallation_CorrectRecord_Test()
+    {
+        //Arrange
+        var flag = false;
+        var record = new InstallationDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false,
+            [new InstallationComponentDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)]);
+        _installationStorageContract.Setup(x => x.AddElement(It.IsAny<InstallationDataModel>()))
+            .Callback((InstallationDataModel x) =>
+            {
+                flag = x.Id == record.Id && x.EmployeeId == record.EmployeeId &&
+                    x.InstallationDate == record.InstallationDate && x.Sum == record.Sum && 
+                    x.IsCanceled == record.IsCanceled && x.Components.Count == record.Components.Count &&
+                    x.Components.First().ComponentId == record.Components.First().ComponentId &&
+                    x.Components.First().InstallationId == record.Components.First().InstallationId &&
+                    x.Components.First().Count == record.Components.First().Count;
+            });
+        //Act
+        _installationBusinessLogicContract.InsertInstallation(record);
+        //Assert
+        _installationStorageContract.Verify(x => x.AddElement(It.IsAny<InstallationDataModel>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void InsertInstallation_RecordWithExistsData_ThrowException_Test()
+    {
+        //Arrange
+        _installationStorageContract.Setup(x => x.AddElement(It.IsAny<InstallationDataModel>())).Throws(new ElementExistsException("Data", "Data"));
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.InsertInstallation(new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            DateTime.UtcNow, 10, 0, false, [new InstallationComponentDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<ElementExistsException>());
+        _installationStorageContract.Verify(x => x.AddElement(It.IsAny<InstallationDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void InsertInstallation_NullRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.InsertInstallation(null), Throws.TypeOf<ArgumentNullException>());
+        _installationStorageContract.Verify(x => x.AddElement(It.IsAny<InstallationDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertInstallation_InvalidRecord_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.InsertInstallation(new InstallationDataModel("id", Guid.NewGuid().ToString(), DateTime.UtcNow, 10, 0, false, [])), Throws.TypeOf<ValidationException>());
+        _installationStorageContract.Verify(x => x.AddElement(It.IsAny<InstallationDataModel>()), Times.Never);
+    }
+
+    [Test]
+    public void InsertInstallation_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _installationStorageContract.Setup(x => x.AddElement(It.IsAny<InstallationDataModel>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.InsertInstallation(new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(),
+            DateTime.UtcNow, 10, 0, false, [new InstallationComponentDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 5)])), Throws.TypeOf<StorageException>());
+        _installationStorageContract.Verify(x => x.AddElement(It.IsAny<InstallationDataModel>()), Times.Once);
+    }
+
+    [Test]
+    public void CancelInstallation_CorrectRecord_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        var flag = false;
+        _installationStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
+        //Act
+        _installationBusinessLogicContract.CancelInstallation(id);
+        //Assert
+        _installationStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+        Assert.That(flag);
+    }
+
+    [Test]
+    public void CancelInstallation_RecordWithIncorrectId_ThrowException_Test()
+    {
+        //Arrange
+        var id = Guid.NewGuid().ToString();
+        _installationStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.CancelInstallation(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
+        _installationStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+
+    [Test]
+    public void CancelInstallation_IdIsNullOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.CancelInstallation(null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _installationBusinessLogicContract.CancelInstallation(string.Empty), Throws.TypeOf<ArgumentNullException>());
+        _installationStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void CancelInstallation_IdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.CancelInstallation("id"), Throws.TypeOf<ValidationException>());
+        _installationStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void CancelInstallation_StorageThrowError_ThrowException_Test()
+    {
+        //Arrange
+        _installationStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
+        //Act&Assert
+        Assert.That(() => _installationBusinessLogicContract.CancelInstallation(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
+        _installationStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
+    }
+}

TheCyclopsProject/TheCyclopsTests/BusinessLogicsContractsTests/PostBusinessLogicContractTest.cs

@@ -0,0 +1,454 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using TheCyclopsBusinessLogic.Implementations;
+using TheCyclopsContracts.DataModels;
+using TheCyclopsContracts.Enums;
+using TheCyclopsContracts.Exceptions;
+using TheCyclopsContracts.StoragesContracts;
+
+namespace TheCyclopsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class PostBusinessLogicContractTest
+{
+    private PostBusinessLogicContract _postBusinessLogicContract;
+    private Mock<IPostStorageContract> _postStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _postStorageContract = new Mock<IPostStorageContract>();
+        _postBusinessLogicContract = new PostBusinessLogicContract(_postStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _postStorageContract.Reset();
+    }
+
+    [Test]
+    public void GetAllPosts_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var listOriginal = new List<PostDataModel>()
+        {
+            new(Guid.NewGuid().ToString(),"name 1", PostType.Administrator, 10, true, DateTime.UtcNow),
+            new(Guid.NewGuid().ToString(), "name 2", PostType.Administrator, 10, false, DateTime.UtcNow),
+            new(Guid.NewGuid().ToString(), "name 3", PostType.Administrator, 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.Administrator, 10, true, DateTime.UtcNow),
+            new(postId, "name 2", PostType.Administrator, 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.Administrator, 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.Administrator, 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.Designer, 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.Designer, 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.Designer, 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.Designer, 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.Designer, 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.Designer, 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.Designer, 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.Designer, 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.Designer, 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);
+    }
+}

TheCyclopsProject/TheCyclopsTests/BusinessLogicsContractsTests/SalaryBusinessLogicContractTest.cs

@@ -0,0 +1,348 @@
+using Microsoft.Extensions.Logging;
+using Moq;
+using TheCyclopsBusinessLogic.Implementations;
+using TheCyclopsContracts.DataModels;
+using TheCyclopsContracts.Enums;
+using TheCyclopsContracts.Exceptions;
+using TheCyclopsContracts.StoragesContracts;
+
+namespace TheCyclopsTests.BusinessLogicsContractsTests;
+
+[TestFixture]
+internal class SalaryBusinessLogicContractTest
+{
+    private SalaryBusinessLogicContract _salaryBusinessLogicContract;
+    private Mock<ISalaryStorageContract> _salaryStorageContract;
+    private Mock<IInstallationStorageContract> _installationStorageContract;
+    private Mock<IPostStorageContract> _postStorageContract;
+    private Mock<IEmployeeStorageContract> _employeeStorageContract;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _salaryStorageContract = new Mock<ISalaryStorageContract>();
+        _installationStorageContract = new Mock<IInstallationStorageContract>();
+        _postStorageContract = new Mock<IPostStorageContract>();
+        _employeeStorageContract = new Mock<IEmployeeStorageContract>();
+        _salaryBusinessLogicContract = new SalaryBusinessLogicContract(_salaryStorageContract.Object,
+            _installationStorageContract.Object, _postStorageContract.Object,
+            _employeeStorageContract.Object, new Mock<ILogger>().Object);
+    }
+
+    [SetUp]
+    public void SetUp()
+    {
+        _salaryStorageContract.Reset();
+        _installationStorageContract.Reset();
+        _postStorageContract.Reset();
+        _employeeStorageContract.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 GetAllSalariesByEmployee_ReturnListOfRecords_Test()
+    {
+        //Arrange
+        var startDate = DateTime.UtcNow;
+        var endDate = DateTime.UtcNow.AddDays(1);
+        var employeeId = 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.GetAllSalariesByPeriodByEmployee(startDate, endDate, employeeId);
+        //Assert
+        Assert.That(list, Is.Not.Null);
+        Assert.That(list, Is.EquivalentTo(listOriginal));
+        _salaryStorageContract.Verify(x => x.GetList(startDate, endDate, employeeId), Times.Once);
+    }
+
+    [Test]
+    public void GetAllSalariesByEmployee_ReturnEmptyList_Test()
+    {
+        //Arrange
+        _salaryStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>())).Returns([]);
+        //Act
+        var list = _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(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 GetAllSalariesByEmployee_IncorrectDates_ThrowException_Test()
+    {
+        //Arrange
+        var dateTime = DateTime.UtcNow;
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(dateTime, dateTime, Guid.NewGuid().ToString()), Throws.TypeOf<IncorrectDatesException>());
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(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 GetAllSalariesByEmployee_EmployeeIdIsNUllOrEmpty_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), null), Throws.TypeOf<ArgumentNullException>());
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(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 GetAllSalariesByEmployee_EmployeeIdIsNotGuid_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(DateTime.UtcNow, DateTime.UtcNow.AddDays(1), "employeeId"), Throws.TypeOf<ValidationException>());
+        _salaryStorageContract.Verify(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>()), Times.Never);
+    }
+
+    [Test]
+    public void GetAllSalariesByEmployee_ReturnNull_ThrowException_Test()
+    {
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.GetAllSalariesByPeriodByEmployee(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 GetAllSalariesByEmployee_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.GetAllSalariesByPeriodByEmployee(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 employeeId = Guid.NewGuid().ToString();
+        var installationPrice = 200.0;
+        var installationSum = 200.0;
+        var postSalary = 2000.0;
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new InstallationDataModel(Guid.NewGuid().ToString(), employeeId, DateTime.UtcNow, installationPrice, installationSum, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Designer, postSalary, true, DateTime.UtcNow));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "email@mail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        var sum = 0.0;
+        var expectedSum = postSalary + installationPrice * 0.1;
+        _salaryStorageContract.Setup(x => x.AddElement(It.IsAny<SalaryDataModel>()))
+            .Callback((SalaryDataModel x) =>
+            {
+                installationSum = x.Salary;
+            });
+        //Act
+        _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow);
+        //Assert
+        Assert.That(installationSum, Is.EqualTo(expectedSum));
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_WithSeveralEmployees_Test()
+    {
+        //Arrange
+        var employee1Id = Guid.NewGuid().ToString();
+        var employee2Id = Guid.NewGuid().ToString();
+        var employee3Id = Guid.NewGuid().ToString();
+        var list = new List<EmployeeDataModel>() {
+            new(employee1Id, "Test", "email@mail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false),
+            new(employee2Id, "Test", "email@mail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false),
+            new(employee3Id, "Test", "email@mail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)
+        };
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new InstallationDataModel(Guid.NewGuid().ToString(), employee1Id, DateTime.UtcNow, 1, 0, false, []),
+                new InstallationDataModel(Guid.NewGuid().ToString(), employee1Id, DateTime.UtcNow, 1, 0, false, []),
+                new InstallationDataModel(Guid.NewGuid().ToString(), employee2Id, DateTime.UtcNow, 1, 0, false, []),
+                new InstallationDataModel(Guid.NewGuid().ToString(), employee3Id, DateTime.UtcNow, 1, 0, false, []),
+                new InstallationDataModel(Guid.NewGuid().ToString(), employee3Id, DateTime.UtcNow, 1, 0, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Designer, 2000, true, DateTime.UtcNow));
+        _employeeStorageContract.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_WithoitInstallationsByEmployee_Test()
+    {
+        //Arrange
+        var postSalary = 2000.0;
+        var employeeId = Guid.NewGuid().ToString();
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Designer, postSalary, true, DateTime.UtcNow));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "email@mail.com", 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_InstallationStorageReturnNull_ThrowException_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Designer, 2000, true, DateTime.UtcNow));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "email@mail.com", 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 employeeId = Guid.NewGuid().ToString();
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new InstallationDataModel(Guid.NewGuid().ToString(), employeeId, DateTime.UtcNow, 0, 0, false, [])]);
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "email@mail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_EmployeeStorageReturnNull_ThrowException_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new InstallationDataModel(Guid.NewGuid().ToString(), employeeId, DateTime.UtcNow, 0, 0, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Designer, 2000, true, DateTime.UtcNow));
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<NullListException>());
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_InstallationStorageThrowException_ThrowException_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), 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.Designer, 2000, true, DateTime.UtcNow));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "email@mail.com", 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 employeeId = Guid.NewGuid().ToString();
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new InstallationDataModel(Guid.NewGuid().ToString(), employeeId, DateTime.UtcNow, 0, 0, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Throws(new StorageException(new InvalidOperationException()));
+        _employeeStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
+            .Returns([new EmployeeDataModel(employeeId, "Test", "email@mail.com", Guid.NewGuid().ToString(), DateTime.UtcNow, DateTime.UtcNow, false)]);
+        //Act&Assert
+        Assert.That(() => _salaryBusinessLogicContract.CalculateSalaryByMounth(DateTime.UtcNow), Throws.TypeOf<StorageException>());
+    }
+
+    [Test]
+    public void CalculateSalaryByMounth_EmployeeStorageThrowException_ThrowException_Test()
+    {
+        //Arrange
+        var employeeId = Guid.NewGuid().ToString();
+        _installationStorageContract.Setup(x => x.GetList(It.IsAny<DateTime>(), It.IsAny<DateTime>(), It.IsAny<string>(), It.IsAny<string>()))
+            .Returns([new InstallationDataModel(Guid.NewGuid().ToString(), employeeId, DateTime.UtcNow, 0, 0, false, [])]);
+        _postStorageContract.Setup(x => x.GetElementById(It.IsAny<string>()))
+            .Returns(new PostDataModel(Guid.NewGuid().ToString(), "name", PostType.Designer, 2000, true, DateTime.UtcNow));
+        _employeeStorageContract.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>());
+    }
+}

TheCyclopsProject/TheCyclopsTests/TheCyclopsTests.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="..\TheCyclopsBusinessLogic\TheCyclopsBusinessLogic.csproj" />
     <ProjectReference Include="..\TheCyclopsContracts\TheCyclopsContracts.csproj" />
   </ItemGroup>