Сданный вариант

SquirrelContract/SquirrelContract.sln

@@ -1,10 +1,12 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.12.35707.178 d17.12
+VisualStudioVersion = 17.12.35707.178
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SquirrelContract", "SquirrelContract\SquirrelContract.csproj", "{3B0E65D7-E64B-4893-803B-A59D9F2C8836}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SquirrelTests", "SquirrelTests\SquirrelTests.csproj", "{CC02A7DA-AA53-4D19-BB16-4DDA5243EB33}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +17,10 @@ Global
 		{3B0E65D7-E64B-4893-803B-A59D9F2C8836}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{3B0E65D7-E64B-4893-803B-A59D9F2C8836}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{3B0E65D7-E64B-4893-803B-A59D9F2C8836}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CC02A7DA-AA53-4D19-BB16-4DDA5243EB33}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CC02A7DA-AA53-4D19-BB16-4DDA5243EB33}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CC02A7DA-AA53-4D19-BB16-4DDA5243EB33}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CC02A7DA-AA53-4D19-BB16-4DDA5243EB33}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

SquirrelContract/SquirrelContract/DataModels/ClientDataModel.cs

@@ -0,0 +1,32 @@
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+using System.Text.RegularExpressions;
+
+namespace SquirrelContract.DataModels;
+
+public class ClientDataModel(string id, string fio, string phoneNumber, double discountSize) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public string FIO { get; private set;} = fio;
+    public string PhoneNumber { get; private set;} = phoneNumber;
+    public double DiscountSize { get; private set; } = discountSize;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException("Field Id is empty");
+
+        if (!Id.IsGuid())
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+
+        if (FIO.IsEmpty())
+            throw new ValidationException("Field FIO is empty");
+
+        if (PhoneNumber.IsEmpty())
+            throw new ValidationException("Field PhoneNumber is empty");
+
+        if (!Regex.IsMatch(PhoneNumber, @"^((8|\+7)[\- ]?)?(\(?\d{3}\)?[\- ]?)?[\d\- ]{7,10}$"))
+            throw new ValidationException("Field PhoneNumber is not a phone number");
+    }
+}

SquirrelContract/SquirrelContract/DataModels/CocktailDataModel.cs

@@ -0,0 +1,32 @@
+using SquirrelContract.Enums;
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+
+namespace SquirrelContract.DataModels;
+
+public class CocktailDataModel(string id, string cocktailName, double price, AlcoholType baseAlcohol) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public string CocktailName { get; private set; } = cocktailName;
+    public double Price { get; private set; } = price;
+    public AlcoholType BaseAlcohol { get; private set; } = baseAlcohol;
+
+    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 (CocktailName.IsEmpty())
+            throw new ValidationException("Field CocktailName is empty");
+
+        if (Price <= 0)
+            throw new ValidationException("Field Price is less than or equal to 0");
+
+        if (BaseAlcohol == AlcoholType.None)
+            throw new ValidationException("Field BaseAlcohol is empty");
+    }
+}

SquirrelContract/SquirrelContract/DataModels/CocktailHistoryDataModel.cs

@@ -0,0 +1,26 @@
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+
+namespace SquirrelContract.DataModels;
+
+public class CocktailHistoryDataModel(string cocktailId, double oldPrice) : IValidation
+{
+    public string CocktailId { get; private set; } = cocktailId;
+
+    public double OldPrice { get; private set; } = oldPrice;
+
+    public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;
+
+    public void Validate()
+    {
+        if (CocktailId.IsEmpty())
+            throw new ValidationException("Field CocktailId is empty");
+
+        if (!CocktailId.IsGuid())
+            throw new ValidationException("The value in the field CocktailId is not a unique identifier");
+
+        if (OldPrice <= 0)
+            throw new ValidationException("Field OldPrice is less than or equal to 0");
+    }
+}

SquirrelContract/SquirrelContract/DataModels/EmployeeDataModel.cs

@@ -0,0 +1,56 @@
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+using System.Text.RegularExpressions;
+
+namespace SquirrelContract.DataModels;
+
+public class EmployeeDataModel(string id, string fio, string email, string postId, DateTime birthDate, DateTime employmentDate, bool isDeleted) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public string FIO { get; private set; } = fio;
+
+    public string Email { get; private set; } = email;
+
+    public string PostId { get; private set; } = postId;
+
+    public DateTime BirthDate { get; private set; } = birthDate;
+
+    public DateTime EmploymentDate { get; private set; } = employmentDate;
+
+    public bool IsDeleted { get; private set; } = isDeleted;
+
+    public void Validate()
+    {
+        if (Id.IsEmpty())
+            throw new ValidationException("Field Id is empty");
+
+        if (!Id.IsGuid())
+            throw new ValidationException("The value in the field Id is not a unique identifier");
+
+        if (FIO.IsEmpty())
+            throw new ValidationException("Field FIO is empty");
+
+        if (Email.IsEmpty())
+            throw new ValidationException("Field Email is empty");
+
+        if (!Regex.IsMatch(Email, @"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$"))
+            throw new ValidationException("Field Email is not a valid email address");
+
+        if (PostId.IsEmpty())
+            throw new ValidationException("Field PostId is empty");
+
+        if (!PostId.IsGuid())
+            throw new ValidationException("The value in the field PostId is not a unique identifier");
+
+        if (BirthDate.Date > DateTime.Now.AddYears(-18).Date)
+            throw new ValidationException($"Only adults can be hired (BirthDate = {BirthDate.ToShortDateString()})");
+
+        if (EmploymentDate.Date < BirthDate.Date)
+            throw new ValidationException("The date of employment cannot be less than the date of birth");
+
+        if ((EmploymentDate - BirthDate).TotalDays / 365 < 18) // EmploymentDate.Year - BirthDate.Year
+            throw new ValidationException($"Only adults can be hired (EmploymentDate - {EmploymentDate.ToShortDateString()}, BirthDate - {BirthDate.ToShortDateString()})");
+    }
+}

SquirrelContract/SquirrelContract/DataModels/PostDataModel.cs

@@ -0,0 +1,47 @@
+using SquirrelContract.Enums;
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+
+namespace SquirrelContract.DataModels;
+
+public class PostDataModel(string id, string postId, string postName, PostType postType, double salary, bool isActual, DateTime changeDate) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public string PostId { get; private set; } = postId;
+
+    public string PostName { get; private set; } = postName;
+
+    public PostType PostType { get; private set; } = postType;
+
+    public double Salary { get; private set; } = salary;
+
+    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");
+
+        if (Salary <= 0)
+            throw new ValidationException("Field Salary is empty");
+    }
+}

SquirrelContract/SquirrelContract/DataModels/SalaryDataModel.cs

@@ -0,0 +1,26 @@
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+
+namespace BarBelochkaContract.DataModels;
+
+public class SalaryDataModel(string employeeId, DateTime salaryDate, double employeeSalary) : IValidation
+{
+    public string EmployeeId { get; private set; } = employeeId;
+
+    public DateTime SalaryDate { get; private set; } = salaryDate;
+
+    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");
+    }
+}

SquirrelContract/SquirrelContract/DataModels/SaleCocktailDataModel.cs

@@ -0,0 +1,32 @@
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+
+namespace SquirrelContract.DataModels;
+
+public class SaleCocktailDataModel(string saleId, string cocktailId, int count) : IValidation
+{
+    public string SaleId { get; private set; } = saleId;
+
+    public string CocktailId { get; private set; } = cocktailId;
+
+    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 (CocktailId.IsEmpty())
+            throw new ValidationException("Field ProductId is empty");
+
+        if (!CocktailId.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");
+    }
+}

SquirrelContract/SquirrelContract/DataModels/SaleDataModel.cs

@@ -0,0 +1,51 @@
+using SquirrelContract.Enums;
+using SquirrelContract.Exceptions;
+using SquirrelContract.Extensions;
+using SquirrelContract.Infastructure;
+
+namespace SquirrelContract.DataModels;
+
+public class SaleDataModel(string id, string employeeId, string? clientId, double sum, DiscountType discountType, double discount, bool isCancel, List<SaleCocktailDataModel> cocktails) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public string EmployeeId { get; private set; } = employeeId;
+
+    public string? ClientId { get; private set; } = clientId;
+
+    public DateTime SaleDate { get; private set; } = DateTime.UtcNow;
+
+    public double Sum { get; private set; } = sum;
+
+    public DiscountType DiscountType { get; private set; } = discountType;
+
+    public double Discount { get; private set; } = discount;
+
+    public bool IsCancel { get; private set; } = isCancel;
+
+    public List<SaleCocktailDataModel> Cocktails { get; private set; } = cocktails;
+
+    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 EmployeeId is empty");
+
+        if (!EmployeeId.IsGuid())
+            throw new ValidationException("The value in the field EmployeeId is not a unique identifier");
+
+        if (!ClientId?.IsGuid() ?? !ClientId?.IsEmpty() ?? false)
+            throw new ValidationException("The value in the field BuyerId is not a unique identifier");
+
+        if (Sum <= 0)
+            throw new ValidationException("Field Sum is less than or equal to 0");
+
+        if ((Cocktails?.Count ?? 0) == 0)
+            throw new ValidationException("The sale must include cocktails");
+    }
+}

SquirrelContract/SquirrelContract/Enums/AlcoholType.cs

@@ -0,0 +1,10 @@
+namespace SquirrelContract.Enums;
+
+public enum AlcoholType
+{
+    None = 0,
+    Vodka = 1, 
+    Whiskey = 2,
+    Wine = 3,
+    Beer = 4
+}

SquirrelContract/SquirrelContract/Enums/DiscountType.cs

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

SquirrelContract/SquirrelContract/Enums/PostType.cs

@@ -0,0 +1,9 @@
+namespace SquirrelContract.Enums;
+
+public enum PostType
+{
+    None = 0,
+    Bartender = 1,
+    Manager = 2,
+    PurchasingSpecialist = 3
+}

SquirrelContract/SquirrelContract/Exceptions/ValidationException.cs

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

SquirrelContract/SquirrelContract/Extensions/StringExtensions.cs

@@ -0,0 +1,14 @@
+namespace SquirrelContract.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 _);
+    }
+}

SquirrelContract/SquirrelContract/Infastructure/IValidation.cs

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

SquirrelContract/SquirrelTests/DataModelsTests/ClientDataModelTests.cs

@@ -0,0 +1,70 @@
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+
+namespace SquirrelTests.DataModelsTests;
+
+[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);
+}

SquirrelContract/SquirrelTests/DataModelsTests/CocktailDataModelTests.cs

@@ -0,0 +1,71 @@
+using SquirrelContract.DataModels;
+using SquirrelContract.Enums;
+using SquirrelContract.Exceptions;
+
+namespace SquirrelTests.DataModelsTests;
+
+[TestFixture]
+internal class CocktailDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var cocktail = CreateDataModel(null, "name", 10.5, AlcoholType.Beer);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        cocktail = CreateDataModel(string.Empty, "name", 10.5, AlcoholType.Beer);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var cocktail = CreateDataModel("id", "name", 10.5, AlcoholType.Beer);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+     
+    [Test]
+    public void CocktailNameIsNullOrEmptyTest()
+    {
+        var cocktail = CreateDataModel(Guid.NewGuid().ToString(), null, 10.5, AlcoholType.Beer);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        cocktail = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, 10.5, AlcoholType.Beer);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PriceIsLessOrZeroTest()
+    {
+        var cocktail = CreateDataModel(Guid.NewGuid().ToString(), null, 0, AlcoholType.Beer);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        cocktail = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, -10.5, AlcoholType.Beer);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void BaseAlcoholIsNoneTest()
+    {
+        var cocktail = CreateDataModel(Guid.NewGuid().ToString(), null, 0, AlcoholType.None);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var cocktailId = Guid.NewGuid().ToString();
+        var cocktailName = "name";
+        var price = 10.5;
+        var baseAlcohol = AlcoholType.Vodka;
+        var cocktail = CreateDataModel(cocktailId, cocktailName, price, baseAlcohol);
+        Assert.That(() => cocktail.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(cocktail.Id, Is.EqualTo(cocktailId));
+            Assert.That(cocktail.CocktailName, Is.EqualTo(cocktailName));
+            Assert.That(cocktail.Price, Is.EqualTo(price));
+            Assert.That(cocktail.BaseAlcohol, Is.EqualTo(baseAlcohol));
+        });
+    }
+
+    private static CocktailDataModel CreateDataModel(string? id, string? cocktailName, double price, AlcoholType baseAlcohol) =>
+        new(id, cocktailName, price, baseAlcohol);
+}

SquirrelContract/SquirrelTests/DataModelsTests/CocktailHistoryDataModelTests.cs

@@ -0,0 +1,52 @@
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+
+namespace SquirrelTests.DataModelsTests;
+
+[TestFixture]
+internal class CocktailHistoryDataModelTests
+{
+    [Test]
+    public void CocktailIdIsNullOrEmptyTest()
+    {
+        var cocktail = CreateDataModel(null, 10);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        cocktail = CreateDataModel(string.Empty, 10);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ProductIdIsNotGuidTest()
+    {
+        var cocktail = CreateDataModel("id", 10);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void OldPriceIsLessOrZeroTest()
+    {
+        var cocktail = CreateDataModel(Guid.NewGuid().ToString(), 0);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+        cocktail = CreateDataModel(Guid.NewGuid().ToString(), -10);
+        Assert.That(() => cocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var cocktailId = Guid.NewGuid().ToString();
+        var oldPrice = 10;
+        var cocktailHistory = CreateDataModel(cocktailId, oldPrice);
+        Assert.That(() => cocktailHistory.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(cocktailHistory.CocktailId, Is.EqualTo(cocktailId));
+            Assert.That(cocktailHistory.OldPrice, Is.EqualTo(oldPrice));
+            Assert.That(cocktailHistory.ChangeDate, Is.LessThan(DateTime.UtcNow));
+            Assert.That(cocktailHistory.ChangeDate, Is.GreaterThan(DateTime.UtcNow.AddMinutes(-1)));
+        });
+    }
+
+    private static CocktailHistoryDataModel CreateDataModel(string? cocktailId, double oldPrice) =>
+        new(cocktailId, oldPrice);
+}

SquirrelContract/SquirrelTests/DataModelsTests/EmployeeDataModelTests.cs

@@ -0,0 +1,108 @@
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+
+namespace SquirrelTests.DataModelsTests;
+
+[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);
+}

SquirrelContract/SquirrelTests/DataModelsTests/PostDataModelTests.cs

@@ -0,0 +1,93 @@
+using SquirrelContract.DataModels;
+using SquirrelContract.Enums;
+using SquirrelContract.Exceptions;
+
+namespace SquirrelTests.DataModelsTests;
+
+[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);
+}

SquirrelContract/SquirrelTests/DataModelsTests/SalaryDataModelTests.cs

@@ -0,0 +1,52 @@
+using BarBelochkaContract.DataModels;
+using SquirrelContract.Exceptions;
+
+namespace SquirrelTests.DataModelsTests;
+
+[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);
+}

SquirrelContract/SquirrelTests/DataModelsTests/SaleCocktailDataModelTests.cs

@@ -0,0 +1,68 @@
+using SquirrelContract.DataModels;
+using SquirrelContract.Exceptions;
+
+namespace SquirrelTests.DataModelsTests;
+
+[TestFixture]
+internal class SaleCocktailDataModelTests
+{
+    [Test]
+    public void SaleIdIsNullOrEmptyTest()
+    {
+        var saleCocktail = CreateDataModel(null, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
+        saleCocktail = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleCocktail.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 CocktailIdIsNullOrEmptyTest()
+    {
+        var saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), null, 10);
+        Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
+        saleCocktail = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), 10);
+        Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ProductIdIsNotGuidTest()
+    {
+        var saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), "productId", 10);
+        Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CountIsLessOrZeroTest()
+    {
+        var saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0);
+        Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
+        saleCocktail = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10);
+        Assert.That(() => saleCocktail.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var saleId = Guid.NewGuid().ToString();
+        var cocktailId = Guid.NewGuid().ToString();
+        var count = 10;
+        var saleCocktail = CreateDataModel(saleId, cocktailId, count);
+        Assert.That(() => saleCocktail.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(saleCocktail.SaleId, Is.EqualTo(saleId));
+            Assert.That(saleCocktail.CocktailId, Is.EqualTo(cocktailId));
+            Assert.That(saleCocktail.Count, Is.EqualTo(count));
+        });
+    }
+
+    private static SaleCocktailDataModel CreateDataModel(string? saleId, string? cocktailId, int count) =>
+        new(saleId, cocktailId, count);
+}

SquirrelContract/SquirrelTests/DataModelsTests/SaleDataModelTests.cs

@@ -0,0 +1,97 @@
+using SquirrelContract.DataModels;
+using SquirrelContract.Enums;
+using SquirrelContract.Exceptions;
+
+namespace SquirrelTests.DataModelsTests;
+
+[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 CocktailsIsNullOrEmptyTest()
+    {
+        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 cocktails = CreateSubDataModel();
+        var sale = CreateDataModel(saleId, employeeId, clientId, sum, discountType, discount, isCancel, cocktails);
+        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.Cocktails, Is.EquivalentTo(cocktails));
+        });
+    }
+
+    private static SaleDataModel CreateDataModel(string? id, string? employeeId, string? clientId, double sum, DiscountType discountType, double discount, bool isCancel, List<SaleCocktailDataModel>? cocktails) =>
+        new(id, employeeId, clientId, sum, discountType, discount, isCancel, cocktails);
+
+    private static List<SaleCocktailDataModel> CreateSubDataModel()
+        => [new(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 1)];
+}

SquirrelContract/SquirrelTests/SquirrelTests.csproj

@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.2" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
+    <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="..\SquirrelContract\SquirrelContract.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="NUnit.Framework" />
+  </ItemGroup>
+
+</Project>