HamContract/HamContract.sln

@@ -1,10 +1,12 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.12.35527.113 d17.12
+VisualStudioVersion = 17.12.35527.113
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HamContract", "HamContract\HamContract.csproj", "{0491E52A-17B9-46C0-B8D1-FBB35ABC7D07}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HamTests", "HamTests\HamTests.csproj", "{B6B67AC4-E55E-4B73-8C14-2A1E2FDCFD26}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +17,10 @@ Global
 		{0491E52A-17B9-46C0-B8D1-FBB35ABC7D07}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{0491E52A-17B9-46C0-B8D1-FBB35ABC7D07}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{0491E52A-17B9-46C0-B8D1-FBB35ABC7D07}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B6B67AC4-E55E-4B73-8C14-2A1E2FDCFD26}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B6B67AC4-E55E-4B73-8C14-2A1E2FDCFD26}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B6B67AC4-E55E-4B73-8C14-2A1E2FDCFD26}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B6B67AC4-E55E-4B73-8C14-2A1E2FDCFD26}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

HamContract/HamContract/DataModels/EmployeeDataModel.cs

@@ -0,0 +1,60 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using HamContract.Extensions;
+using HamContract.Infrastructure;
+
+namespace HamContract.DataModels;
+
+public class EmployeeDataModel(string id, string name, string phone, string postId, DateTime Dateofbirth, DateTime employmentDate, bool isDeleted) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public string Name { get; private set; } = name;
+    public string Phone { get; private set; } = phone;
+    public string PostId { get; private set; } = postId;
+    public DateTime Dateofbirth { get; private set; } = Dateofbirth;
+    public DateTime EmploymentDate { get; private set; } = employmentDate;
+    public bool IsDeleted { get; private set; } = isDeleted;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException("Field Id is empty");
+
+        if (!Id.IsGuid())
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+    
+        if (Name.IsEmpty())
+            throw new ValidationException("Field Name is empty"); 
+
+        if (!Regex.IsMatch(name, @"^[A-Za-zА\s]+$"))
+        {
+            throw new ValidationException("Field Name is not valid");
+        }
+
+
+        if (Phone.IsEmpty()) { throw new ValidationException("Field Phone is empty"); }
+
+        if (!Regex.IsMatch(Phone, @"^\+7[\s-]?\d{3}[\s-]?\d{3}[\s-]?\d{2}[\s-]?\d{2}$")) { throw new ValidationException("Field PhoneNumber is not a phone number"); }
+
+        if (PostId.IsEmpty())
+            throw new ValidationException("Field PostId is empty");
+
+        if (!PostId.IsGuid())
+            throw new ValidationException("The value in the field PostId is not a unique identifier");
+
+        if (Dateofbirth.Date > DateTime.Now.AddYears(-18).Date)
+            throw new ValidationException($"Minors cannot be hired (BirthDate = {Dateofbirth.ToShortDateString()})");
+
+        if (EmploymentDate.Date < Dateofbirth.Date)
+            throw new ValidationException("The date of employment cannot be less than the date of birth");
+
+        if ((EmploymentDate - Dateofbirth).TotalDays / 365 < 18) 
+            throw new ValidationException($"Minors cannot be hired (EmploymentDate - {EmploymentDate.ToShortDateString()}, BirthDate - BirthDate.ToShortDateString())");
+    }
+}
+

HamContract/HamContract/DataModels/HistoryDataModel.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.Extensions;
+using HamContract.Infrastructure;
+
+namespace HamContract.DataModels;
+
+public class HistoryDataModel(string productId, double oldPrice) : IValidation
+{
+    public string ProductId { get; private set; } = productId;
+    public double OldPrice { get; private set; } = oldPrice;
+    public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;
+
+    public void Validate()
+    {
+        if (ProductId.IsEmpty())
+            throw new ValidationException("Field ProductId is empty");
+
+        if (!ProductId.IsGuid())
+            throw new ValidationException("The value in the field ProductId is not a unique identifier");
+
+        if (OldPrice <= 0)
+            throw new ValidationException("Field OldPrice is less than or equal to 0");
+    }
+}
+

HamContract/HamContract/DataModels/Meat_productDataModel.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.Enums;
+using HamContract.Extensions;
+using HamContract.Infrastructure;
+
+namespace HamContract.DataModels
+{
+    public class ProductDataModel(string id, string productName, ProductType productType, double price, bool isDeleted) : IValidation
+
+    {
+        public string Id { get; private set; } = id;
+        public string ProductName { get; private set; } = productName;
+        public ProductType ProductType { get; private set; } = productType;
+        public double Price { get; private set; } = price;
+        public bool IsDeleted { get; private set; } = isDeleted;
+
+        public void Validate()
+        {
+            if (Id.IsEmpty())
+                throw new ValidationException("Field Id is empty");
+
+            if (!Id.IsGuid())
+                throw new ValidationException("The value in the field Id is not a unique identifier");
+
+            if (ProductName.IsEmpty())
+                throw new ValidationException("Field ProductName is empty");
+
+            if (ProductType == ProductType.None)
+                throw new ValidationException("Field ProductType is empty");
+
+            if (Price <= 0)
+                throw new ValidationException("Field Price is less than or equal to 0");
+        }
+    }
+}

HamContract/HamContract/DataModels/PostDataModel.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.Enums;
+using HamContract.Extensions;
+using HamContract.Infrastructure;
+
+namespace HamContract.DataModels;
+
+public class PostDataModel(string id, string postId, string postName, PostType postType, bool isActual, DateTime changeDate) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public string PostId { get; private set; } = postId;
+    public string PostName { get; private set; } = postName;
+    public PostType PostType { get; private set; } = postType;
+    public bool IsActual { get; private set; } = isActual;
+    public DateTime ChangeDate { get; private set; } = changeDate;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException("Field Id is empty");
+
+        if (!Id.IsGuid())
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+
+        if (PostId.IsEmpty())
+            throw new ValidationException("Field PostId is empty");
+
+        if (!PostId.IsGuid())
+            throw new ValidationException("The value in the field PostId is not a unique identifier");
+
+        if (PostName.IsEmpty())
+            throw new ValidationException("Field PostName is empty");
+
+        if (PostType == PostType.None)
+            throw new ValidationException("Field PostType is empty");
+
+  
+    }
+}

HamContract/HamContract/DataModels/SalaryDataModel.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.Extensions;
+using HamContract.Infrastructure;
+
+namespace HamContract.DataModels;
+
+public class SalaryDataModel(string employeeId, DateTime Date, double employeeSalary) : IValidation
+{
+    public string EmployeeId { get; private set; } = employeeId;
+    public DateTime Date { get; private set; } = Date;
+    public double Salary { get; private set; } = employeeSalary;
+    public void Validate()
+    {
+        if (EmployeeId.IsEmpty())
+            throw new ValidationException("Field EmployeeId is empty");
+
+        if (!EmployeeId.IsGuid())
+            throw new ValidationException("The value in the field EmployeeId is not a unique identifier");
+
+        if (Salary <= 0)
+            throw new ValidationException("Field Salary is less than or equal to 0");
+    }
+}

HamContract/HamContract/DataModels/SaleDataModel.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.Extensions;
+using HamContract.Infrastructure;
+
+namespace HamContract.DataModels;
+
+public class SaleDataModel(string id, string employeeId, double sum, bool isCancel, List<SaleProductDataModel> products) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public string EmployeeId { get; private set; } = employeeId;
+    public DateTime SaleDate { get; private set; } = DateTime.UtcNow;
+    public double Sum { get; private set; } = sum;
+    public bool IsCancel { get; private set; } = isCancel;
+    public List<SaleProductDataModel> Products { get; private set; } = products;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException("Field Id is empty");
+
+        if (!Id.IsGuid())
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+
+        if (EmployeeId.IsEmpty())
+            throw new ValidationException("Field WorkerId is empty");
+
+        if (!EmployeeId.IsGuid())
+            throw new ValidationException("The value in the field WorkerId is not a unique identifier");
+
+        if (Sum <= 0)
+            throw new ValidationException("Field Sum is less than or equal to 0");
+
+        if ((Products?.Count ?? 0) == 0)
+            throw new ValidationException("The sale must include products");
+    }
+}

HamContract/HamContract/DataModels/SaleProductDataModel.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.Extensions;
+using HamContract.Infrastructure;
+
+namespace HamContract.DataModels;
+
+public class SaleProductDataModel(string saleId, string productId, int count) : IValidation
+{
+    public string SaleId { get; private set; } = saleId;
+    public string ProductId { get; private set; } = productId;
+    public int Count { get; private set; } = count;
+    public void Validate()
+    {
+        if (SaleId.IsEmpty())
+            throw new ValidationException("Field SaleId is empty");
+
+        if (!SaleId.IsGuid())
+            throw new ValidationException("The value in the field SaleId is not a unique identifier");
+
+        if (ProductId.IsEmpty())
+            throw new ValidationException("Field ProductId is empty");
+
+        if (!ProductId.IsGuid())
+            throw new ValidationException("The value in the field ProductId is not a unique identifier");
+
+        if (Count <= 0)
+            throw new ValidationException("Field Count is less than or equal to 0");
+    }
+
+}

HamContract/HamContract/Enums/PostType.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace HamContract.Enums
+{
+    public enum PostType
+    { None=0,
+     Butcher=1, 
+     Seller=2, 
+     Cleaner=3
+
+    }
+}

HamContract/HamContract/Enums/ProductType.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace HamContract.Enums
+{
+    public  enum ProductType
+    {
+        None=0,
+        Animal_Meat = 1,
+        Various_meat_products =2, 
+        Semi_finished_products=3
+
+
+    }
+}

HamContract/HamContract/Exceptions/ValidationException.cs

@@ -0,0 +1,9 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+namespace HamContract.Exceptions;
+public class ValidationExceptionvoid(string message) : Exception(message)
+{
+}

HamContract/HamContract/Extensions/StringExtensions.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace HamContract.Extensions;
+
+public static class StringExtensions
+{
+    public static bool IsEmpty(this string str)
+    { 
+        return string.IsNullOrWhiteSpace(str);
+    }
+    public static bool IsGuid(this string str)
+    {
+        return Guid.TryParse(str, out _);
+    }
+}

HamContract/HamContract/Infrastructure/IValidation.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace HamContract.Infrastructure;
+
+public interface IValidation
+{
+    void Validate();
+}

HamContract/HamTests/DataModelsTest/EmployeeDataModelTest.cs

@@ -0,0 +1,126 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.DataModels;
+
+namespace HamTests.DataModelsTest;
+
+    [TestFixture]
+    internal class EmployeeDataModelTest
+    {
+        [Test]
+        public void IdIsNullOrEmptyTest()
+        {
+            var employee = CreateDataModel(null, "name", "phone", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+            Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+            employee = CreateDataModel(string.Empty, "name", "phone", 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", "name", "phone", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+            Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+        }
+
+        [Test]
+        public void NameIsNullOrEmptyTest()
+        {
+
+            var employee = CreateDataModel(Guid.NewGuid().ToString(), "name", null, Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+            Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+            employee = CreateDataModel(Guid.NewGuid().ToString(), "name", string.Empty, Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+            Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+        }
+
+        [Test]
+        public void PhoneIsNullOrEmptyTest()
+        {
+            var employee = CreateDataModel(Guid.NewGuid().ToString(), null, "phone", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+            Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+            employee = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "phone", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+            Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+        }
+
+        [Test]
+        public void NameIsIncorrectTest()
+        {
+            var employee = CreateDataModel(Guid.NewGuid().ToString(), "name","777", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+            Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+        }
+
+    [Test]
+    public void PhoneIsIncorrectTest()
+    {
+        var employee = CreateDataModel(Guid.NewGuid().ToString(), "name", "777", 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(), "name", "number", null, DateTime.Now.AddYears(-18), DateTime.Now, false);
+            Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+            employee = CreateDataModel(Guid.NewGuid().ToString(), "name", "number", 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(), "name", "number", "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(), "name", "number", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18).AddDays(1), DateTime.Now, false);
+            Assert.That(() => employee.Validate(), Throws.TypeOf<ValidationException>());
+        }
+
+        [Test]
+        public void BirthDateAndEmploymentDateIsNotCorrectTest()
+        {
+            var employee = CreateDataModel(Guid.NewGuid().ToString(), "name", "number", 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(), "name", "number", 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 name = "name";
+            var phone = "+7-732-234-23-77";
+            var postId = Guid.NewGuid().ToString();
+            var dateofbirth = DateTime.Now.AddYears(-18).AddDays(-1);
+            var employmentDate = DateTime.Now;
+            var isDelete = false;
+            var employee = CreateDataModel(employeeId, name, phone, postId, dateofbirth, employmentDate, isDelete);
+            Assert.That(() => employee.Validate(), Throws.Nothing);
+            Assert.Multiple(() =>
+            {
+                Assert.That(employee.Id, Is.EqualTo(employeeId));
+                Assert.That(employee.Name, Is.EqualTo(name));
+                Assert.That(employee.Phone, Is.EqualTo(phone));
+                Assert.That(employee.PostId, Is.EqualTo(postId));
+                Assert.That(employee.Dateofbirth, Is.EqualTo(dateofbirth));
+                Assert.That(employee.EmploymentDate, Is.EqualTo(employmentDate));
+                Assert.That(employee.IsDeleted, Is.EqualTo(isDelete));
+            });
+        }
+        private static EmployeeDataModel CreateDataModel(string? id, string? name, string? phone, string? postId, DateTime dateofbirth, DateTime employmentDate, bool isDeleted) =>
+            new(id, name, phone, postId, dateofbirth, employmentDate, isDeleted);
+
+    }
+

HamContract/HamTests/DataModelsTest/HistoryDataModelTest.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.DataModels;
+
+namespace HamTests.DataModelsTest;
+[TestFixture]
+internal class HistoryDataModelTest
+{
+    [Test]
+    public void ProductIdIsNullOrEmptyTest()
+    {
+        var product = CreateDataModel(null, 10);
+        Assert.That(() => product.Validate(),
+        Throws.TypeOf<ValidationException>());
+        product = CreateDataModel(string.Empty, 10);
+        Assert.That(() => product.Validate(),
+        Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ProductIdIsNotGuidTest()
+    {
+        var product = CreateDataModel("id", 10);
+        Assert.That(() => product.Validate(),
+        Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void OldPriceIsLessOrZeroTest()
+    {
+        var product = CreateDataModel(Guid.NewGuid().ToString(), 0);
+        Assert.That(() => product.Validate(),
+        Throws.TypeOf<ValidationException>());
+        product = CreateDataModel(Guid.NewGuid().ToString(), -10);
+        Assert.That(() => product.Validate(),
+        Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var productId = Guid.NewGuid().ToString();
+        var oldPrice = 10;
+        var productHistory = CreateDataModel(productId, oldPrice);
+        Assert.That(() => productHistory.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(productHistory.ProductId, Is.EqualTo(productId));
+            Assert.That(productHistory.OldPrice, Is.EqualTo(oldPrice));
+            Assert.That(productHistory.ChangeDate,
+            Is.LessThan(DateTime.UtcNow));
+            Assert.That(productHistory.ChangeDate,
+            Is.GreaterThan(DateTime.UtcNow.AddMinutes(-1)));
+        });
+    }
+
+    private static HistoryDataModel CreateDataModel(string? productId, double oldPrice) => new(productId, oldPrice);
+}

HamContract/HamTests/DataModelsTest/Meat_productDataModelTest.cs

@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.DataModels;
+using HamContract.Enums;
+
+namespace HamTests.DataModelsTest;
+
+
+    [TestFixture]
+    internal class Meat_productDataModelTest
+{
+        [Test]
+        public void IdIsNullOrEmptyTest()
+        {
+            var product = CreateDataModel(null, "name", ProductType.Animal_Meat, 10, false);
+            Assert.That(() => product.Validate(), Throws.TypeOf<ValidationException>());
+            product = CreateDataModel(string.Empty, "name", ProductType.Animal_Meat, 10, false);
+            Assert.That(() => product.Validate(), Throws.TypeOf<ValidationException>());
+        }
+
+        [Test]
+        public void IdIsNotGuidTest()
+        {
+            var product = CreateDataModel("id", "name", ProductType.Animal_Meat, 10, false);
+            Assert.That(() => product.Validate(), Throws.TypeOf<ValidationException>());
+        }
+
+        [Test]
+        public void ProductNameIsEmptyTest()
+        {
+            var product = CreateDataModel(Guid.NewGuid().ToString(), null, ProductType.Animal_Meat, 10, false);
+            Assert.That(() => product.Validate(), Throws.TypeOf<ValidationException>());
+            product = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, ProductType.Animal_Meat, 10, false);
+            Assert.That(() => product.Validate(), Throws.TypeOf<ValidationException>());
+        }
+
+        [Test]
+        public void ProductTypeIsNoneTest()
+        {
+            var product = CreateDataModel(Guid.NewGuid().ToString(), null, ProductType.None, 10, false);
+            Assert.That(() => product.Validate(), Throws.TypeOf<ValidationException>());
+        }
+
+        [Test]
+        public void PriceIsLessOrZeroTest()
+        {
+            var product = CreateDataModel(Guid.NewGuid().ToString(), "name", ProductType.Animal_Meat, 0, false);
+            Assert.That(() => product.Validate(), Throws.TypeOf<ValidationException>());
+            product = CreateDataModel(Guid.NewGuid().ToString(), "name", ProductType.Animal_Meat, -10, false);
+            Assert.That(() => product.Validate(), Throws.TypeOf<ValidationException>());
+        }
+
+        [Test]
+        public void AllFieldsIsCorrectTest()
+        {
+            var productId = Guid.NewGuid().ToString();
+            var productName = "name";
+            var productType = ProductType.Animal_Meat;
+            var price = 10;
+            var productIsDelete = false;
+            var product = CreateDataModel(productId, productName, productType, price, productIsDelete);
+            Assert.That(() => product.Validate(), Throws.Nothing);
+            Assert.Multiple(() =>
+            {
+                Assert.That(product.Id, Is.EqualTo(productId));
+                Assert.That(product.ProductName, Is.EqualTo(productName));
+                Assert.That(product.ProductType, Is.EqualTo(productType));
+                Assert.That(product.Price, Is.EqualTo(price));
+                Assert.That(product.IsDeleted, Is.EqualTo(productIsDelete));
+            });
+        }
+        private static ProductDataModel CreateDataModel(string? id, string? productName, ProductType productType, double price, bool isDeleted) =>
+            new(id, productName, productType, price, isDeleted);
+    }
+
+

HamContract/HamTests/DataModelsTest/PostDataModelTest.cs

@@ -0,0 +1,91 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.DataModels;
+using HamContract.Enums;
+
+namespace HamTests.DataModelsTest;
+
+
+[TestFixture]
+internal class PostDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var post = CreateDataModel(null, Guid.NewGuid().ToString(), "name", PostType.Butcher, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+        post = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), "name", PostType.Butcher, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var post = CreateDataModel("id", Guid.NewGuid().ToString(), "name", PostType.Butcher, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostIdIsNullEmptyTest()
+    {
+        var post = CreateDataModel(Guid.NewGuid().ToString(), null, "name", PostType.Butcher, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+        post = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "name", PostType.Butcher, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostIdIsNotGuidTest()
+    {
+        var post = CreateDataModel(Guid.NewGuid().ToString(), "postId", "name", PostType.Butcher, 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.Butcher, 10, true, DateTime.UtcNow);
+        Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
+        manufacturer = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), string.Empty, PostType.Butcher, 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 AllFieldsIsCorrectTest()
+    {
+        var postId = Guid.NewGuid().ToString();
+        var postPostId = Guid.NewGuid().ToString();
+        var postName = "name";
+        var postType = PostType.Butcher;
+        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.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,isActual, changeDate);
+}

HamContract/HamTests/DataModelsTest/SalaryDataModelTest.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.DataModels;
+
+namespace HamTests.DataModelsTest;
+
+[TestFixture]
+internal class SalaryDataModelTests
+{
+    [Test]
+    public void WorkerIdIsEmptyTest()
+    {
+        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 PriceIsLessOrZeroTest()
+    {
+        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 date = DateTime.Now.AddDays(-3).AddMinutes(-5);
+        var Salary = 10;
+        var salary = CreateDataModel(employeeId,date, Salary);
+        Assert.That(() => salary.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(salary.EmployeeId, Is.EqualTo(employeeId));
+            Assert.That(salary.Date, Is.EqualTo(date));
+            Assert.That(salary.Salary, Is.EqualTo(Salary));
+        });
+    }
+
+    private static SalaryDataModel CreateDataModel(string? employeeId, DateTime date, double Salary)
+        => new(employeeId, date, Salary);
+}

HamContract/HamTests/DataModelsTest/SaleDataModelTest.cs

@@ -0,0 +1,87 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.DataModels;
+
+namespace HamTests.DataModelsTest;
+
+[TestFixture]
+internal class SaleDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var sale = CreateDataModel(null, Guid.NewGuid().ToString(), 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+        sale = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var sale = CreateDataModel("id", Guid.NewGuid().ToString(), 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void WorkerIdIsNullOrEmptyTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), null, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+        sale = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void WorkerIdIsNotGuidTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), "workerId", 10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void SumIsLessOrZeroTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+        sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10, false, CreateSubDataModel());
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ProductsIsNullOrEmptyTest()
+    {
+        var sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, false, null);
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+        sale = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, false, []);
+        Assert.That(() => sale.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var saleId = Guid.NewGuid().ToString();
+        var workerId = Guid.NewGuid().ToString();
+        var sum = 10;
+        var isCancel = true;
+        var products = CreateSubDataModel();
+        var sale = CreateDataModel(saleId, workerId, sum, isCancel, products);
+        Assert.That(() => sale.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(sale.Id, Is.EqualTo(saleId));
+            Assert.That(sale.EmployeeId, Is.EqualTo(workerId));
+            Assert.That(sale.Sum, Is.EqualTo(sum));
+            Assert.That(sale.IsCancel, Is.EqualTo(isCancel));
+            Assert.That(sale.Products, Is.EquivalentTo(products));
+        });
+    }
+    private static SaleDataModel CreateDataModel(string? id, string? employeeId, double sum, bool isCancel, List<SaleProductDataModel>? products)
+        => new(id, employeeId, sum, isCancel, products);
+    private static List<SaleProductDataModel> CreateSubDataModel()
+        => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];
+}

HamContract/HamTests/DataModelsTest/SaleProductDataModelTest.cs

@@ -0,0 +1,71 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using HamContract.DataModels;
+
+namespace HamTests.DataModelsTest;
+
+[TestFixture]
+internal class SaleProductDataModelTests
+{
+    [Test]
+    public void SaleIdIsNullOrEmptyTest()
+    {
+        var saleProduct = CreateDataModel(null, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
+        saleProduct = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void SaleIdIsNotGuidTest()
+    {
+        var saleProduct = CreateDataModel("saleId", Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ProductIdIsNullOrEmptyTest()
+    {
+        var saleProduct = CreateDataModel(Guid.NewGuid().ToString(), null, 10);
+        Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
+        saleProduct = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ProductIdIsNotGuidTest()
+    {
+        var saleProduct = CreateDataModel(Guid.NewGuid().ToString(), "productId", 10);
+        Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CountIsLessOrZeroTest()
+    {
+        var saleProduct = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
+        Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>()); saleProduct = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10);
+        Assert.That(() => saleProduct.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var saleId = Guid.NewGuid().ToString();
+        var productId = Guid.NewGuid().ToString();
+        var count = 10;
+        var saleProduct = CreateDataModel(saleId, productId, count);
+        Assert.That(() => saleProduct.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleProduct.SaleId, Is.EqualTo(saleId));
+            Assert.That(saleProduct.ProductId, Is.EqualTo(productId));
+            Assert.That(saleProduct.Count, Is.EqualTo(count));
+        });
+    }
+    private static SaleProductDataModel CreateDataModel(string? saleId, string? productId, int count) =>
+        new(saleId, productId, count);
+}

HamContract/HamTests/HamTests.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="..\HamContract\HamContract.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="NUnit.Framework" />
+  </ItemGroup>
+
+</Project>