MagicCarpetContracts/MagicCarpetContracts.sln

@@ -3,7 +3,9 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.11.35327.3
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MagicCarpetContracts", "MagicCarpetContracts\MagicCarpetContracts.csproj", "{C1E669BF-22EC-4388-A54E-45160151A92C}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MagicCarpetContracts", "MagicCarpetContracts\MagicCarpetContracts.csproj", "{C1E669BF-22EC-4388-A54E-45160151A92C}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MagicCarpetTests", "MagicCarpetTests\MagicCarpetTests.csproj", "{AD61DB61-6F8B-448F-933E-F9C2C3FA05E4}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +17,10 @@ Global
 		{C1E669BF-22EC-4388-A54E-45160151A92C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{C1E669BF-22EC-4388-A54E-45160151A92C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{C1E669BF-22EC-4388-A54E-45160151A92C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{AD61DB61-6F8B-448F-933E-F9C2C3FA05E4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{AD61DB61-6F8B-448F-933E-F9C2C3FA05E4}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{AD61DB61-6F8B-448F-933E-F9C2C3FA05E4}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{AD61DB61-6F8B-448F-933E-F9C2C3FA05E4}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

MagicCarpetContracts/MagicCarpetContracts/DataModels/ClientDataModel.cs

@@ -1,4 +1,5 @@
 using MagicCarpetContracts.Extensions;
+using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.Infrastructure;
 using System;
 using System.Collections.Generic;
@@ -7,6 +8,7 @@ using System.Linq;
 using System.Text;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
+using ValidationException = MagicCarpetContracts.Exceptions.ValidationException;
 
 namespace MagicCarpetContracts.DataModels;
 

MagicCarpetContracts/MagicCarpetContracts/DataModels/EmployeeDataModel.cs

@@ -1,4 +1,4 @@
-using MagicCarpetContracts.Exeptions;
+using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.Extensions;
 using MagicCarpetContracts.Infrastructure;
 using System;

MagicCarpetContracts/MagicCarpetContracts/DataModels/PostDataModel.cs

@@ -1,5 +1,5 @@
-    using MagicCarpetContracts.Enums;
-using MagicCarpetContracts.Exeptions;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.Extensions;
 using MagicCarpetContracts.Infrastructure;
 using System;

MagicCarpetContracts/MagicCarpetContracts/DataModels/SalaryDataModel.cs

@@ -1,4 +1,4 @@
-using MagicCarpetContracts.Exeptions;
+using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.Extensions;
 using MagicCarpetContracts.Infrastructure;
 using System;

MagicCarpetContracts/MagicCarpetContracts/DataModels/SaleDataModel.cs

@@ -1,5 +1,5 @@
 using MagicCarpetContracts.Enums;
-using MagicCarpetContracts.Exeptions;
+using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.Extensions;
 using MagicCarpetContracts.Infrastructure;
 using System;

MagicCarpetContracts/MagicCarpetContracts/DataModels/SaleTourDataModel.cs

@@ -1,4 +1,4 @@
-using MagicCarpetContracts.Exeptions;
+using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.Extensions;
 using MagicCarpetContracts.Infrastructure;
 using System;

MagicCarpetContracts/MagicCarpetContracts/DataModels/TourDataModel.cs

@@ -1,5 +1,5 @@
 using MagicCarpetContracts.Enums;
-using MagicCarpetContracts.Exeptions;
+using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.Extensions;
 using MagicCarpetContracts.Infrastructure;
 using System;

MagicCarpetContracts/MagicCarpetContracts/DataModels/TourHistoryDataModel.cs

@@ -1,4 +1,4 @@
-using MagicCarpetContracts.Exeptions;
+using MagicCarpetContracts.Exceptions;
 using MagicCarpetContracts.Extensions;
 using MagicCarpetContracts.Infrastructure;
 using System;
@@ -9,9 +9,9 @@ using System.Threading.Tasks;
 
 namespace MagicCarpetContracts.DataModels;
 
-public class TourHistoryDataModel(string cocktailId, double oldPrice) : IValidation
+public class TourHistoryDataModel(string tourId, double oldPrice) : IValidation
 {
-    public string TourId { get; private set; } = cocktailId;
+    public string TourId { get; private set; } = tourId;
 
     public double OldPrice { get; private set; } = oldPrice;
 

MagicCarpetContracts/MagicCarpetContracts/Exceptions/ValidationException.cs

@@ -4,7 +4,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace MagicCarpetContracts.Exeptions;
+namespace MagicCarpetContracts.Exceptions;
 
 public class ValidationException(string message) : Exception(message)
 {

MagicCarpetContracts/MagicCarpetTests/DataModelTests/ClientDataModelTests.cs

@@ -0,0 +1,74 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+[TestFixture]
+internal class ClientDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var client = CreateDataModel(null, "fio", "number", 10);
+        Assert.That(() => client.Validate(), Throws.TypeOf<ValidationException>());
+        client = CreateDataModel(string.Empty, "fio", "number", 10);
+        Assert.That(() => client.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var client = CreateDataModel("id", "fio", "number", 10);
+        Assert.That(() => client.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void FIOIsNullOrEmptyTest()
+    {
+        var client = CreateDataModel(Guid.NewGuid().ToString(), null, "number", 10);
+        Assert.That(() => client.Validate(), Throws.TypeOf<ValidationException>());
+        client = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "number", 10);
+        Assert.That(() => client.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PhoneNumberIsNullOrEmptyTest()
+    {
+        var client = CreateDataModel(Guid.NewGuid().ToString(), "fio", null, 10);
+        Assert.That(() => client.Validate(), Throws.TypeOf<ValidationException>());
+        client = CreateDataModel(Guid.NewGuid().ToString(), "fio", string.Empty, 10);
+        Assert.That(() => client.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PhoneNumberIsIncorrectTest()
+    {
+        var client = CreateDataModel(Guid.NewGuid().ToString(), "fio", "777", 10);
+        Assert.That(() => client.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var clientId = Guid.NewGuid().ToString();
+        var fio = "Fio";
+        var phoneNumber = "+7-777-777-77-77";
+        var discountSize = 11;
+        var buyer = CreateDataModel(clientId, fio, phoneNumber, discountSize);
+        Assert.That(() => buyer.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(buyer.Id, Is.EqualTo(clientId));
+            Assert.That(buyer.FIO, Is.EqualTo(fio));
+            Assert.That(buyer.PhoneNumber, Is.EqualTo(phoneNumber));
+            Assert.That(buyer.DiscountSize, Is.EqualTo(discountSize));
+        });
+    }
+
+    private static ClientDataModel CreateDataModel(string? id, string? fio, string? phoneNumber, double discountSize) =>
+        new(id, fio, phoneNumber, discountSize);
+}

MagicCarpetContracts/MagicCarpetTests/DataModelTests/EmployeeDataModelTests.cs

@@ -0,0 +1,113 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+
+[TestFixture]
+internal class EmployeeDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var employee = CreateDataModel(null, "fio", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+        employee = CreateDataModel(string.Empty, "fio", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var employee = CreateDataModel("id", "fio", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void FIOIsNullOrEmptyTest()
+    {
+        var employee = CreateDataModel(Guid.NewGuid().ToString(), null, "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+        employee = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void EmailIsNullOrEmptyTest()
+    {
+        var employee = CreateDataModel(Guid.NewGuid().ToString(), "fio", null, Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+        employee = CreateDataModel(Guid.NewGuid().ToString(), "fio", string.Empty, Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void EmailIsIncorrectTest()
+    {
+        var employee = CreateDataModel(Guid.NewGuid().ToString(), "fio", "abc@gmail", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostIdIsNullOrEmptyTest()
+    {
+        var employee = CreateDataModel(Guid.NewGuid().ToString(), "fio", "abc@gmail.com", null, DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+        employee = CreateDataModel(Guid.NewGuid().ToString(), "fio", "abc@gmail.com", string.Empty, DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostIdIsNotGuidTest()
+    {
+        var employee = CreateDataModel(Guid.NewGuid().ToString(), "fio", "abc@gmail.com", "postId", DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void BirthDateIsNotCorrectTest()
+    {
+        var employee = CreateDataModel(Guid.NewGuid().ToString(), "fio", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(1), DateTime.Now, false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void BirthDateAndEmploymentDateIsNotCorrectTest()
+    {
+        var employee = CreateDataModel(Guid.NewGuid().ToString(), "fio", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now.AddYears(-18).AddDays(-1), false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+        employee = CreateDataModel(Guid.NewGuid().ToString(), "fio", "abc@gmail.com", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now.AddYears(-16), false);
+        Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var employeeId = Guid.NewGuid().ToString();
+        var fio = "fio";
+        var employeeEmail = "abc@gmail.com";
+        var postId = Guid.NewGuid().ToString();
+        var birthDate = DateTime.Now.AddYears(-18).AddDays(-1);
+        var employmentDate = DateTime.Now;
+        var isDelete = false;
+        var employee = CreateDataModel(employeeId, fio, employeeEmail, postId, birthDate, employmentDate, isDelete);
+        Assert.That(() => employee.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(employee.Id, Is.EqualTo(employeeId));
+            Assert.That(employee.FIO, Is.EqualTo(fio));
+            Assert.That(employee.Email, Is.EqualTo(employeeEmail));
+            Assert.That(employee.PostId, Is.EqualTo(postId));
+            Assert.That(employee.BirthDate, Is.EqualTo(birthDate));
+            Assert.That(employee.EmploymentDate, Is.EqualTo(employmentDate));
+            Assert.That(employee.IsDeleted, Is.EqualTo(isDelete));
+        });
+    }
+
+    private static EmployeeDataModel CreateDataModel(string? id, string? fio, string? email, string? postId, DateTime birthDate, DateTime employmentDate, bool isDeleted) =>
+        new(id, fio, email, postId, birthDate, employmentDate, isDeleted);
+}

MagicCarpetContracts/MagicCarpetTests/DataModelTests/PostDataModelTests.cs

@@ -0,0 +1,97 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+[TestFixture]
+internal class PostDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var post = CreateDataModel(null, Guid.NewGuid().ToString(), "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+        post = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var post = CreateDataModel("id", Guid.NewGuid().ToString(), "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostIdIsNullEmptyTest()
+    {
+        var post = CreateDataModel(Guid.NewGuid().ToString(), null, "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+        post = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostIdIsNotGuidTest()
+    {
+        var post = CreateDataModel(Guid.NewGuid().ToString(), "postId", "name", PostType.Manager, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostNameIsEmptyTest()
+    {
+        var manufacturer = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, PostType.Manager, 10, true, DateTime.UtcNow);
+        Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
+        manufacturer = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), string.Empty, PostType.Manager, 10, true, DateTime.UtcNow);
+        Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostTypeIsNoneTest()
+    {
+        var post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "name", PostType.None, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void SalaryIsLessOrZeroTest()
+    {
+        var post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "name", PostType.Manager, 0, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+        post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "name", PostType.Manager, -10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var postId = Guid.NewGuid().ToString();
+        var postPostId = Guid.NewGuid().ToString();
+        var postName = "name";
+        var postType = PostType.Manager;
+        var salary = 10;
+        var isActual = false;
+        var changeDate = DateTime.UtcNow.AddDays(-1);
+        var post = CreateDataModel(postId, postPostId, postName, postType, salary, isActual, changeDate);
+        Assert.That(() => post.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(post.Id, Is.EqualTo(postId));
+            Assert.That(post.PostId, Is.EqualTo(postPostId));
+            Assert.That(post.PostName, Is.EqualTo(postName));
+            Assert.That(post.PostType, Is.EqualTo(postType));
+            Assert.That(post.Salary, Is.EqualTo(salary));
+            Assert.That(post.IsActual, Is.EqualTo(isActual));
+            Assert.That(post.ChangeDate, Is.EqualTo(changeDate));
+        });
+    }
+
+    private static PostDataModel CreateDataModel(string? id, string? postId, string? postName, PostType postType, double salary, bool isActual, DateTime changeDate) =>
+        new(id, postId, postName, postType, salary, isActual, changeDate);
+}

MagicCarpetContracts/MagicCarpetTests/DataModelTests/SalaryDataModelTests.cs

@@ -0,0 +1,57 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+
+[TestFixture]
+internal class SalaryDataModelTests
+{
+    [Test]
+    public void EmployeeIdIsEmptyTest()
+    {
+        var salary = CreateDataModel(null, DateTime.Now, 10);
+        Assert.That(() => salary.Validate(), Throws.TypeOf<ValidationException>());
+        salary = CreateDataModel(string.Empty, DateTime.Now, 10);
+        Assert.That(() => salary.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void EmployeeIdIsNotGuidTest()
+    {
+        var salary = CreateDataModel("employeeId", DateTime.Now, 10);
+        Assert.That(() => salary.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void SalaryIsLessOrZeroTest()
+    {
+        var salary = CreateDataModel(Guid.NewGuid().ToString(), DateTime.Now, 0);
+        Assert.That(() => salary.Validate(), Throws.TypeOf<ValidationException>());
+        salary = CreateDataModel(Guid.NewGuid().ToString(), DateTime.Now, -10);
+        Assert.That(() => salary.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var employeeId = Guid.NewGuid().ToString();
+        var salaryDate = DateTime.Now.AddDays(-3).AddMinutes(-5);
+        var enployeeSalary = 10;
+        var salary = CreateDataModel(employeeId, salaryDate, enployeeSalary);
+        Assert.That(() => salary.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(salary.EmployeeId, Is.EqualTo(employeeId));
+            Assert.That(salary.SalaryDate, Is.EqualTo(salaryDate));
+            Assert.That(salary.Salary, Is.EqualTo(enployeeSalary));
+        });
+    }
+
+    private static SalaryDataModel CreateDataModel(string? employeeId, DateTime salaryDate, double employeeSalary) =>
+        new(employeeId, salaryDate, employeeSalary);
+}

MagicCarpetContracts/MagicCarpetTests/DataModelTests/SaleDataModelTests.cs

@@ -0,0 +1,103 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+
+[TestFixture]
+internal class SaleDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var sale = CreateDataModel(null, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+        sale = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var sale = CreateDataModel("id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+    [Test]
+    public void EmployeeIdIsNullOrEmptyTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+        sale = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void EmployeeIdIsNotGuidTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), "employeeId", Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ClientIdIsNotGuidTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "clientId", 10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void SumIsLessOrZeroTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+        sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10, DiscountType.OnSale, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ToursIsNullOrEmptyTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, null);
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+        sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, DiscountType.OnSale, 10, false, []);
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var saleId = Guid.NewGuid().ToString();
+        var employeeId = Guid.NewGuid().ToString();
+        var clientId = Guid.NewGuid().ToString();
+        var sum = 10;
+        var discountType = DiscountType.Certificate;
+        var discount = 1;
+        var isCancel = true;
+        var tours = CreateSubDataModel();
+        var sale = CreateDataModel(saleId, employeeId, clientId, sum, discountType, discount, isCancel, tours);
+        Assert.That(() => sale.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(sale.Id, Is.EqualTo(saleId));
+            Assert.That(sale.EmployeeId, Is.EqualTo(employeeId));
+            Assert.That(sale.ClientId, Is.EqualTo(clientId));
+            Assert.That(sale.Sum, Is.EqualTo(sum));
+            Assert.That(sale.DiscountType, Is.EqualTo(discountType));
+            Assert.That(sale.Discount, Is.EqualTo(discount));
+            Assert.That(sale.IsCancel, Is.EqualTo(isCancel));
+            Assert.That(sale.Tours, Is.EquivalentTo(tours));
+        });
+    }
+
+    private static SaleDataModel CreateDataModel(string? id, string? employeeId, string? clientId, double sum, DiscountType discountType, 
+        double discount, bool isCancel, List<SaleTourDataModel>? tours) =>
+        new(id, employeeId, clientId, sum, discountType, discount, isCancel, tours);
+
+    private static List<SaleTourDataModel> CreateSubDataModel()
+        => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];
+}

MagicCarpetContracts/MagicCarpetTests/DataModelTests/SaleTourDataModelTests.cs

@@ -0,0 +1,73 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+
+[TestFixture]
+internal class SaleTourDataModelTests
+{
+    [Test]
+    public void SaleIdIsNullOrEmptyTest()
+    {
+        var saleTour = CreateDataModel(null, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
+        saleTour = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void SaleIdIsNotGuidTest()
+    {
+        var saleTour = CreateDataModel("saleId", Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CocktailIdIsNullOrEmptyTest()
+    {
+        var saleTour = CreateDataModel(Guid.NewGuid().ToString(), null, 10);
+        Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
+        saleTour = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ProductIdIsNotGuidTest()
+    {
+        var saleTour = CreateDataModel(Guid.NewGuid().ToString(), "productId", 10);
+        Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CountIsLessOrZeroTest()
+    {
+        var saleTour = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
+        Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
+        saleTour = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10);
+        Assert.That(() => saleTour.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var saleId = Guid.NewGuid().ToString();
+        var tourId = Guid.NewGuid().ToString();
+        var count = 10;
+        var saleCocktail = CreateDataModel(saleId, tourId, count);
+        Assert.That(() => saleCocktail.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleCocktail.SaleId, Is.EqualTo(saleId));
+            Assert.That(saleCocktail.TourId, Is.EqualTo(tourId));
+            Assert.That(saleCocktail.Count, Is.EqualTo(count));
+        });
+    }
+
+    private static SaleTourDataModel CreateDataModel(string? saleId, string? tourId, int count) =>
+        new(saleId, tourId, count);
+}

MagicCarpetContracts/MagicCarpetTests/DataModelTests/TourDataModelTests.cs

@@ -0,0 +1,84 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Enums;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+
+internal class TourDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var cocktail = CreateDataModel(null, "name", "country", 10.5, TourType.Beach);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        cocktail = CreateDataModel(string.Empty, "name", "country", 10.5, TourType.Beach);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var cocktail = CreateDataModel("id", "name", "country", 10.5, TourType.Beach);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void TourNameIsNullOrEmptyTest()
+    {
+        var cocktail = CreateDataModel(Guid.NewGuid().ToString(), null, "country", 10.5, TourType.Beach);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        cocktail = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "country", 10.5, TourType.Beach);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+    public void TourCountryIsNullOrEmptyTest()
+    {
+        var cocktail = CreateDataModel(Guid.NewGuid().ToString(), "name", null, 10.5, TourType.Beach);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        cocktail = CreateDataModel(Guid.NewGuid().ToString(), "name", string.Empty, 10.5, TourType.Beach);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PriceIsLessOrZeroTest()
+    {
+        var cocktail = CreateDataModel(Guid.NewGuid().ToString(), null, null, 0, TourType.Beach);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        cocktail = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, string.Empty, -10.5, TourType.Beach);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void TourTypeIsNoneTest()
+    {
+        var cocktail = CreateDataModel(Guid.NewGuid().ToString(), null, null, 0, TourType.Beach);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var tourId = Guid.NewGuid().ToString();
+        var tourName = "name";
+        var tourCountry = "country";
+        var price = 10.5;
+        var tourType = TourType.Ski;
+        var tour = CreateDataModel(tourId, tourName, tourCountry, price, tourType);
+        Assert.That(() => tour.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(tour.Id, Is.EqualTo(tourId));
+            Assert.That(tour.TourName, Is.EqualTo(tourName));
+            Assert.That(tour.TourCountry, Is.EqualTo(tourCountry));
+            Assert.That(tour.Price, Is.EqualTo(price));
+            Assert.That(tour.Type, Is.EqualTo(tourType));
+        });
+    }
+
+    private static TourDataModel CreateDataModel(string? id, string? tourName, string? countryName,double price, TourType tourType) =>
+        new(id, tourName, countryName,price, tourType);
+}

MagicCarpetContracts/MagicCarpetTests/DataModelTests/TourHistoryDataModelTests.cs

@@ -0,0 +1,57 @@
+using MagicCarpetContracts.DataModels;
+using MagicCarpetContracts.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MagicCarpetTests.DataModelTests;
+
+[TestFixture]
+internal class TourHistoryDataModelTests
+{
+    [Test]
+    public void CocktailIdIsNullOrEmptyTest()
+    {
+        var tour = CreateDataModel(null, 10);
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
+        tour = CreateDataModel(string.Empty, 10);
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ProductIdIsNotGuidTest()
+    {
+        var tour = CreateDataModel("id", 10);
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void OldPriceIsLessOrZeroTest()
+    {
+        var tour = CreateDataModel(Guid.NewGuid().ToString(), 0);
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
+        tour = CreateDataModel(Guid.NewGuid().ToString(), -10);
+        Assert.That(() => tour.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var tourId = Guid.NewGuid().ToString();
+        var oldPrice = 10;
+        var tourHistory = CreateDataModel(tourId, oldPrice);
+        Assert.That(() => tourHistory.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(tourHistory.TourId, Is.EqualTo(tourId));
+            Assert.That(tourHistory.OldPrice, Is.EqualTo(oldPrice));
+            Assert.That(tourHistory.ChangeDate, Is.LessThan(DateTime.UtcNow));
+            Assert.That(tourHistory.ChangeDate, Is.GreaterThan(DateTime.UtcNow.AddMinutes(-1)));
+        });
+    }
+
+    private static TourHistoryDataModel CreateDataModel(string? tourId, double oldPrice) =>
+        new(tourId, oldPrice);
+}

MagicCarpetContracts/MagicCarpetTests/MagicCarpetTests.csproj

@@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+    <IsTestProject>true</IsTestProject>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit.Analyzers" Version="3.9.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MagicCarpetContracts\MagicCarpetContracts.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="NUnit.Framework" />
+  </ItemGroup>
+
+</Project>