TheWingsOfTheWorldProject.sln

@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.13.35806.99
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WingsOfTheWorldContratcs", "WingsOfTheWorldContratcs\WingsOfTheWorldContratcs.csproj", "{BEAC542F-7E06-4942-A37D-583E87FAE7FF}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WingsOfTheWorldTests", "WingsOfTheWorldTests\WingsOfTheWorldTests.csproj", "{B6D3F94F-D240-494C-AC11-D9B8ADAD4914}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{BEAC542F-7E06-4942-A37D-583E87FAE7FF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BEAC542F-7E06-4942-A37D-583E87FAE7FF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BEAC542F-7E06-4942-A37D-583E87FAE7FF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BEAC542F-7E06-4942-A37D-583E87FAE7FF}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B6D3F94F-D240-494C-AC11-D9B8ADAD4914}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B6D3F94F-D240-494C-AC11-D9B8ADAD4914}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B6D3F94F-D240-494C-AC11-D9B8ADAD4914}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B6D3F94F-D240-494C-AC11-D9B8ADAD4914}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {FDD9A46D-B6D6-40D9-AE18-3DF8480C20EB}
+	EndGlobalSection
+EndGlobal

WingsOfTheWorldContratcs/DataModels/AccessoriesDataModel.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.Enums;
+using WingsOfTheWorldContratcs.Exceptions;
+using WingsOfTheWorldContratcs.Exstensions;
+using WingsOfTheWorldContratcs.Infrastructure;
+
+namespace WingsOfTheWorldContratcs.DataModels;
+
+public class AccessoriesDataModel(string id, string name, AccessoriesType accessoriesType) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public string Name { get; private set; } = name;
+
+    public AccessoriesType AccessoriesType { get; private set; } = accessoriesType;
+
+    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 PostName is empty");
+
+        if (AccessoriesType == AccessoriesType.None)
+            throw new ValidationException("Field PostType is empty");
+
+    }
+}

WingsOfTheWorldContratcs/DataModels/AirplaneDataModel.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.Exceptions;
+using WingsOfTheWorldContratcs.Exstensions;
+using WingsOfTheWorldContratcs.Infrastructure;
+
+namespace WingsOfTheWorldContratcs.DataModels;
+
+public class AirplaneDataModel(string id, string model) : IValidation
+{
+    public string Id { get; private set; } = id;
+    public string Model { get; private set; } = model;
+
+   
+
+    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 (Model.IsEmpty())
+            throw new ValidationException("Field Model is empty");
+
+        if (!Model.IsGuid())
+            throw new ValidationException("The value in the field Model is not a unique identifier");
+     
+    }
+}

WingsOfTheWorldContratcs/DataModels/DeliveryDataModel.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+using WingsOfTheWorldContratcs.Exceptions;
+using WingsOfTheWorldContratcs.Exstensions;
+using WingsOfTheWorldContratcs.Infrastructure;
+
+namespace WingsOfTheWorldContratcs.DataModels;
+
+public class DeliveryDataModel(string id, string airPlaneId, string place, int count, int price) : IValidation
+{
+
+    public string Id { get; private set; } = id;
+
+    public string AirPlaneId { get; private set; } = airPlaneId;
+
+    public string Place { get; private set; } = place;
+
+    public int  Count  { get; private set; } = count;
+
+    public int Price { get; private set; } = price;
+
+    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 (AirPlaneId.IsEmpty())
+            throw new ValidationException("Field AirPlaneId is empty");
+
+        if (!AirPlaneId.IsGuid())
+            throw new ValidationException("The value in the field AirPlaneId is not a unique identifier");
+
+        if (Place.IsEmpty())
+            throw new ValidationException("Field Place is empty");
+
+        if (!Place.IsGuid())
+            throw new ValidationException("The value in the field Place is not a unique identifier");
+
+        if (Count <= 0)
+            throw new ValidationException("Field Count is empty");
+
+        if (Price <= 0)
+            throw new ValidationException("Field Price is empty");
+    }
+}

WingsOfTheWorldContratcs/DataModels/DeliveryHistoryDataModel.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.Exceptions;
+using WingsOfTheWorldContratcs.Exstensions;
+using WingsOfTheWorldContratcs.Infrastructure;
+
+namespace WingsOfTheWorldContratcs.DataModels;
+
+public class DeliveryHistoryDataModel(string airplaneid, double oldPrice) : IValidation
+{
+    public string AirplaneId { get; private set; } = airplaneid;
+
+    public double OldPrice { get; private set; } = oldPrice;
+
+    public DateTime ChangeDate { get; private set; } = DateTime.UtcNow;
+
+    public void Validate()
+    {
+        if (AirplaneId.IsEmpty())
+            throw new ValidationException("Field ProductId is empty");
+
+        if (!AirplaneId.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");
+    }
+}

WingsOfTheWorldContratcs/DataModels/PostDataModel.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.Enums;
+using WingsOfTheWorldContratcs.Exceptions;
+using WingsOfTheWorldContratcs.Exstensions;
+using WingsOfTheWorldContratcs.Infrastructure;
+
+namespace WingsOfTheWorldContratcs.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");
+    }
+}
+

WingsOfTheWorldContratcs/DataModels/SalaryDataModel.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.Exceptions;
+using WingsOfTheWorldContratcs.Exstensions;
+using WingsOfTheWorldContratcs.Infrastructure;
+
+namespace WingsOfTheWorldContratcs.DataModels;
+
+public class SalaryDataModel(string workerId, DateTime salaryDate, double workerSalary) : IValidation
+{
+    public string WorkerId { get; private set; } = workerId;
+
+    public DateTime SalaryDate { get; private set; } = salaryDate;
+
+    public double Salary { get; private set; } = workerSalary;
+
+    public void Validate()
+    {
+        if (WorkerId.IsEmpty())
+            throw new ValidationException("Field WorkerId is empty");
+
+        if (!WorkerId.IsGuid())
+            throw new ValidationException("The value in the field WorkerId is not a unique identifier");
+
+        if (Salary <= 0)
+            throw new ValidationException("Field Salary is less than or equal to 0");
+    }
+}

WingsOfTheWorldContratcs/DataModels/WorkerDataModel.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.Exceptions;
+using WingsOfTheWorldContratcs.Exstensions;
+using WingsOfTheWorldContratcs.Infrastructure;
+
+namespace WingsOfTheWorldContratcs.DataModels;
+
+public class WorkerDataModel(string id, string fio, 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 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 (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(-16).Date)
+            throw new ValidationException($"Minors cannot be hired (BirthDate = {BirthDate.ToShortDateString()})");
+
+        if (EmploymentDate.Date < BirthDate.Date)
+            throw new ValidationException("The date of employment cannot be less than the date of birth");
+
+        if ((EmploymentDate - BirthDate).TotalDays / 365 < 16) // EmploymentDate.Year - BirthDate.Year
+            throw new ValidationException($"Minors cannot be hired (EmploymentDate - {EmploymentDate.ToShortDateString()}, BirthDate - {BirthDate.ToShortDateString()})");
+    }
+}

WingsOfTheWorldContratcs/DataModels/СarrierСompanyDataModel.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.Exceptions;
+using WingsOfTheWorldContratcs.Exstensions;
+using WingsOfTheWorldContratcs.Infrastructure;
+
+namespace WingsOfTheWorldContratcs.DataModels;
+
+public class СarrierСompanyDataModel(string id, string name, string phoneNumber, int count, int price) : IValidation
+{
+    public string Id { get; private set; } = id;
+
+    public string Name { get; private set; } = name;
+
+    public string PhoneNumber { get; private set; } = phoneNumber;
+
+    public int Count { get; private set; } = count;
+
+    public int Price { get; private set; } = price;
+    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 (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");
+
+        if (Count <= 0)
+            throw new ValidationException("Field Count is empty");
+
+        if (Price <= 0)
+            throw new ValidationException("Field Price is empty");
+    }
+}

WingsOfTheWorldContratcs/Enums/AccessoriesType.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WingsOfTheWorldContratcs.Enums;
+
+public enum AccessoriesType
+{
+    None = 0,
+    Accessories = 1,
+    Salon = 2,
+    BodyWork = 3
+}

WingsOfTheWorldContratcs/Enums/PostType.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WingsOfTheWorldContratcs.Enums;
+
+public enum PostType
+{
+    None = 0,
+    Supervisor = 1,
+    Master = 2,
+    Assistent = 3
+}

WingsOfTheWorldContratcs/Exceptions/ValidationException.cs

@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WingsOfTheWorldContratcs.Exceptions;
+
+public class ValidationException(string message) : Exception(message)
+{
+}

WingsOfTheWorldContratcs/Exstensions/StringExstensions.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WingsOfTheWorldContratcs.Exstensions;
+
+public static class StringExstensions
+{
+    public static bool IsEmpty(this string str)
+    {
+        return string.IsNullOrWhiteSpace(str);
+    }
+
+    public static bool IsGuid(this string str)
+    {
+        return Guid.TryParse(str, out _);
+    }
+}

WingsOfTheWorldContratcs/Infrastructure/IValidation.cs

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

WingsOfTheWorldContratcs/WingsOfTheWorldContratcs.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

WingsOfTheWorldTests/DataModelTests/AccessoriesDataModelTest.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.DataModels;
+using WingsOfTheWorldContratcs.Enums;
+using WingsOfTheWorldContratcs.Exceptions;
+
+namespace WingsOfTheWorldTests.DataModelTests;
+
+internal class AccessoriesDataModelTest
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var accessory = CreateDataModel(null, "AccessoryName", AccessoriesType.Salon);
+        Assert.That(() => accessory.Validate(), Throws.TypeOf<ValidationException>());
+
+        accessory = CreateDataModel(string.Empty, "AccessoryName", AccessoriesType.Salon);
+        Assert.That(() => accessory.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var accessory = CreateDataModel("invalid_id", "AccessoryName", AccessoriesType.Salon);
+        Assert.That(() => accessory.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void NameIsNullOrEmptyTest()
+    {
+        var accessory = CreateDataModel(Guid.NewGuid().ToString(), null, AccessoriesType.Salon);
+        Assert.That(() => accessory.Validate(), Throws.TypeOf<ValidationException>());
+
+        accessory = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, AccessoriesType.Salon);
+        Assert.That(() => accessory.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AccessoriesTypeIsNoneTest()
+    {
+        var accessory = CreateDataModel(Guid.NewGuid().ToString(), "AccessoryName", AccessoriesType.None);
+        Assert.That(() => accessory.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsAreCorrectTest()
+    {
+        var id = Guid.NewGuid().ToString();
+        var name = "AccessoryName";
+        var type = AccessoriesType.Salon;
+        var accessory = CreateDataModel(id, name, type);
+
+        Assert.That(() => accessory.Validate(), Throws.Nothing);
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(accessory.Id, Is.EqualTo(id));
+            Assert.That(accessory.Name, Is.EqualTo(name));
+            Assert.That(accessory.AccessoriesType, Is.EqualTo(type));
+        });
+    }
+
+    private static AccessoriesDataModel CreateDataModel(string? id, string? name, AccessoriesType type) =>
+        new(id, name, type);
+}

WingsOfTheWorldTests/DataModelTests/AirplaneDataModelTest.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.DataModels;
+using WingsOfTheWorldContratcs.Exceptions;
+
+namespace WingsOfTheWorldTests.DataModelTests;
+
+internal class AirplaneDataModelTest
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var airplane = CreateDataModel(null, "model");
+        Assert.That(() => airplane.Validate(), Throws.TypeOf<ValidationException>());
+
+        airplane = CreateDataModel(string.Empty, "model");
+        Assert.That(() => airplane.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var airplane = CreateDataModel("invalid_id", "model");
+        Assert.That(() => airplane.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ModelIsNullOrEmptyTest()
+    {
+        var airplane = CreateDataModel(Guid.NewGuid().ToString(), null);
+        Assert.That(() => airplane.Validate(), Throws.TypeOf<ValidationException>());
+
+        airplane = CreateDataModel(Guid.NewGuid().ToString(), string.Empty);
+        Assert.That(() => airplane.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void ModelIsNotGuidTest()
+    {
+        var airplane = CreateDataModel(Guid.NewGuid().ToString(), "invalid_model");
+        Assert.That(() => airplane.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsAreCorrectTest()
+    {
+        var id = Guid.NewGuid().ToString();
+        var model = Guid.NewGuid().ToString();
+        var airplane = CreateDataModel(id, model);
+
+        Assert.That(() => airplane.Validate(), Throws.Nothing);
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(airplane.Id, Is.EqualTo(id));
+            Assert.That(airplane.Model, Is.EqualTo(model));
+        });
+    }
+
+    private static AirplaneDataModel CreateDataModel(string? id, string? model) =>
+        new(id, model);
+}

WingsOfTheWorldTests/DataModelTests/DeliveryDataModelTest.cs

@@ -0,0 +1,109 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.DataModels;
+using WingsOfTheWorldContratcs.Exceptions;
+using static NUnit.Framework.Internal.OSPlatform;
+
+namespace WingsOfTheWorldTests.DataModelTests;
+
+internal class DeliveryDataModelTest
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var delivery = CreateDataModel(null, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+
+        delivery = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var delivery = CreateDataModel("invalid_id", Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AirPlaneIdIsNullOrEmptyTest()
+    {
+        var delivery = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), 10, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+
+        delivery = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), 10, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AirPlaneIdIsNotGuidTest()
+    {
+        var delivery = CreateDataModel(Guid.NewGuid().ToString(), "invalid_id", Guid.NewGuid().ToString(), 10, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PlaceIsNullOrEmptyTest()
+    {
+        var delivery = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), null, 10, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+
+        delivery = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), string.Empty, 10, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PlaceIsNotGuidTest()
+    {
+        var delivery = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "invalid_place", 10, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CountIsLessOrZeroTest()
+    {
+        var delivery = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 0, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+
+        delivery = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), -10, 100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PriceIsLessOrZeroTest()
+    {
+        var delivery = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, 0);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+
+        delivery = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), 10, -100);
+        Assert.That(() => delivery.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsAreCorrectTest()
+    {
+        var id = Guid.NewGuid().ToString();
+        var airPlaneId = Guid.NewGuid().ToString();
+        var place = Guid.NewGuid().ToString();
+        var count = 10;
+        var price = 100;
+        var delivery = CreateDataModel(id, airPlaneId, place, count, price);
+
+        Assert.That(() => delivery.Validate(), Throws.Nothing);
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(delivery.Id, Is.EqualTo(id));
+            Assert.That(delivery.AirPlaneId, Is.EqualTo(airPlaneId));
+            Assert.That(delivery.Place, Is.EqualTo(place));
+            Assert.That(delivery.Count, Is.EqualTo(count));
+            Assert.That(delivery.Price, Is.EqualTo(price));
+        });
+    }
+
+    private static DeliveryDataModel CreateDataModel(string? id, string? airPlaneId, string? place, int count, int price) =>
+        new(id, airPlaneId, place, count, price);
+}

WingsOfTheWorldTests/DataModelTests/DeliveryHistoryDataModelTest.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.DataModels;
+using WingsOfTheWorldContratcs.Exceptions;
+
+namespace WingsOfTheWorldTests.DataModelTests;
+
+internal class DeliveryHistoryDataModelTest
+{
+    [Test]
+    public void AirplaneIdIsNullOrEmptyTest()
+    {
+        var history = CreateDataModel(null, 100);
+        Assert.That(() => history.Validate(), Throws.TypeOf<ValidationException>());
+
+        history = CreateDataModel(string.Empty, 100);
+        Assert.That(() => history.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AirplaneIdIsNotGuidTest()
+    {
+        var history = CreateDataModel("invalid_id", 100);
+        Assert.That(() => history.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void OldPriceIsLessOrEqualZeroTest()
+    {
+        var history = CreateDataModel(Guid.NewGuid().ToString(), 0);
+        Assert.That(() => history.Validate(), Throws.TypeOf<ValidationException>());
+
+        history = CreateDataModel(Guid.NewGuid().ToString(), -100);
+        Assert.That(() => history.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsAreCorrectTest()
+    {
+        var airplaneId = Guid.NewGuid().ToString();
+        var oldPrice = 150.5;
+        var history = CreateDataModel(airplaneId, oldPrice);
+
+        Assert.That(() => history.Validate(), Throws.Nothing);
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(history.AirplaneId, Is.EqualTo(airplaneId));
+            Assert.That(history.OldPrice, Is.EqualTo(oldPrice));
+            Assert.That(history.ChangeDate, Is.LessThanOrEqualTo(DateTime.UtcNow));
+        });
+    }
+
+    private static DeliveryHistoryDataModel CreateDataModel(string? airplaneId, double oldPrice) =>
+        new(airplaneId, oldPrice);
+}

WingsOfTheWorldTests/DataModelTests/PostDataModelTest.cs

@@ -0,0 +1,97 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.DataModels;
+using WingsOfTheWorldContratcs.Enums;
+using WingsOfTheWorldContratcs.Exceptions;
+
+namespace WingsOfTheWorldTests.DataModelTests;
+
+internal class PostDataModelTest
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var post = CreateDataModel(null, Guid.NewGuid().ToString(), "name", PostType.Assistent, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+        post = CreateDataModel(string.Empty, Guid.NewGuid().ToString(), "name", PostType.Assistent, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var post = CreateDataModel("id", Guid.NewGuid().ToString(), "name", PostType.Assistent, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostIdIsNullEmptyTest()
+    {
+        var post = CreateDataModel(Guid.NewGuid().ToString(), null, "name", PostType.Assistent, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+        post = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "name", PostType.Assistent, 10, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostIdIsNotGuidTest()
+    {
+        var post = CreateDataModel(Guid.NewGuid().ToString(), "postId", "name", PostType.Assistent, 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.Assistent, 10, true, DateTime.UtcNow);
+        Assert.That(() => manufacturer.Validate(), Throws.TypeOf<ValidationException>());
+        manufacturer = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), string.Empty, PostType.Assistent, 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.Assistent, 0, true, DateTime.UtcNow);
+        Assert.That(() => post.Validate(), Throws.TypeOf<ValidationException>());
+        post = CreateDataModel(Guid.NewGuid().ToString(), Guid.NewGuid().ToString(), "name", PostType.  Assistent, -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.Assistent;
+        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);
+}

WingsOfTheWorldTests/DataModelTests/SalaryDataModelTests.cs

@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.DataModels;
+using WingsOfTheWorldContratcs.Exceptions;
+
+namespace WingsOfTheWorldTests.DataModelTests;
+
+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 WorkerIdIsNotGuidTest()
+    {
+        var salary = CreateDataModel("workerId", 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 workerId = Guid.NewGuid().ToString();
+        var salaryDate = DateTime.Now.AddDays(-3).AddMinutes(-5);
+        var workerSalary = 10;
+        var salary = CreateDataModel(workerId, salaryDate, workerSalary);
+        Assert.That(() => salary.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(salary.WorkerId, Is.EqualTo(workerId));
+            Assert.That(salary.SalaryDate, Is.EqualTo(salaryDate));
+            Assert.That(salary.Salary, Is.EqualTo(workerSalary));
+        });
+    }
+
+    private static SalaryDataModel CreateDataModel(string? workerId, DateTime salaryDate, double workerSalary) =>
+        new(workerId, salaryDate, workerSalary);
+}

WingsOfTheWorldTests/DataModelTests/WorkerDataModelTest.cs

@@ -0,0 +1,90 @@
+using WingsOfTheWorldContratcs.DataModels;
+using WingsOfTheWorldContratcs.Exceptions;
+
+namespace WingsOfTheWorldTests.DataModelTests;
+
+[TestFixture]
+internal class WorkerDataModelTests
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var worker = CreateDataModel(null, "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+        worker = CreateDataModel(string.Empty, "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var worker = CreateDataModel("id", "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void FIOIsNullOrEmptyTest()
+    {
+        var worker = CreateDataModel(Guid.NewGuid().ToString(), null, Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+        worker = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostIdIsNullOrEmptyTest()
+    {
+        var worker = CreateDataModel(Guid.NewGuid().ToString(), "fio", null, DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+        worker = CreateDataModel(Guid.NewGuid().ToString(), "fio", string.Empty, DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PostIdIsNotGuidTest()
+    {
+        var worker = CreateDataModel(Guid.NewGuid().ToString(), "fio", "postId", DateTime.Now.AddYears(-18), DateTime.Now, false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void BirthDateIsNotCorrectTest()
+    {
+        var worker = CreateDataModel(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-16).AddDays(1), DateTime.Now, false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void BirthDateAndEmploymentDateIsNotCorrectTest()
+    {
+        var worker = CreateDataModel(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now.AddYears(-18).AddDays(-1), false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+        worker = CreateDataModel(Guid.NewGuid().ToString(), "fio", Guid.NewGuid().ToString(), DateTime.Now.AddYears(-18), DateTime.Now.AddYears(-16), false);
+        Assert.That(() => worker.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsIsCorrectTest()
+    {
+        var workerId = Guid.NewGuid().ToString();
+        var fio = "fio";
+        var postId = Guid.NewGuid().ToString();
+        var birthDate = DateTime.Now.AddYears(-16).AddDays(-1);
+        var employmentDate = DateTime.Now;
+        var isDelete = false;
+        var worker = CreateDataModel(workerId, fio, postId, birthDate, employmentDate, isDelete);
+        Assert.That(() => worker.Validate(), Throws.Nothing);
+        Assert.Multiple(() =>
+        {
+            Assert.That(worker.Id, Is.EqualTo(workerId));
+            Assert.That(worker.FIO, Is.EqualTo(fio));
+            Assert.That(worker.PostId, Is.EqualTo(postId));
+            Assert.That(worker.BirthDate, Is.EqualTo(birthDate));
+            Assert.That(worker.EmploymentDate, Is.EqualTo(employmentDate));
+            Assert.That(worker.IsDeleted, Is.EqualTo(isDelete));
+        });
+    }
+
+    private static WorkerDataModel CreateDataModel(string? id, string? fio, string? postId, DateTime birthDate, DateTime employmentDate, bool isDeleted) =>
+        new(id, fio, postId, birthDate, employmentDate, isDeleted);
+}

WingsOfTheWorldTests/DataModelTests/СarrierСompanyDataModelTest.cs

@@ -0,0 +1,106 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WingsOfTheWorldContratcs.DataModels;
+using WingsOfTheWorldContratcs.Exceptions;
+
+namespace WingsOfTheWorldTests.DataModelTests;
+
+
+
+internal class CarrierCompanyDataModelTest
+{
+    [Test]
+    public void IdIsNullOrEmptyTest()
+    {
+        var company = CreateDataModel(null, "CompanyName", "+79123456789", 10, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+
+        company = CreateDataModel(string.Empty, "CompanyName", "+79123456789", 10, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void IdIsNotGuidTest()
+    {
+        var company = CreateDataModel("invalid_id", "CompanyName", "+79123456789", 10, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void NameIsNullOrEmptyTest()
+    {
+        var company = CreateDataModel(Guid.NewGuid().ToString(), null, "+79123456789", 10, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+
+        company = CreateDataModel(Guid.NewGuid().ToString(), string.Empty, "+79123456789", 10, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PhoneNumberIsNullOrEmptyTest()
+    {
+        var company = CreateDataModel(Guid.NewGuid().ToString(), "CompanyName", null, 10, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+
+        company = CreateDataModel(Guid.NewGuid().ToString(), "CompanyName", string.Empty, 10, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PhoneNumberIsInvalidTest()
+    {
+        var company = CreateDataModel(Guid.NewGuid().ToString(), "CompanyName", "123456", 10, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+
+        company = CreateDataModel(Guid.NewGuid().ToString(), "CompanyName", "abcdefg", 10, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void CountIsLessOrEqualZeroTest()
+    {
+        var company = CreateDataModel(Guid.NewGuid().ToString(), "CompanyName", "+79123456789", 0, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+
+        company = CreateDataModel(Guid.NewGuid().ToString(), "CompanyName", "+79123456789", -5, 1000);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void PriceIsLessOrEqualZeroTest()
+    {
+        var company = CreateDataModel(Guid.NewGuid().ToString(), "CompanyName", "+79123456789", 10, 0);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+
+        company = CreateDataModel(Guid.NewGuid().ToString(), "CompanyName", "+79123456789", 10, -100);
+        Assert.That(() => company.Validate(), Throws.TypeOf<ValidationException>());
+    }
+
+    [Test]
+    public void AllFieldsAreCorrectTest()
+    {
+        var id = Guid.NewGuid().ToString();
+        var name = "CompanyName";
+        var phoneNumber = "+79123456789";
+        var count = 10;
+        var price = 1000;
+        var company = CreateDataModel(id, name, phoneNumber, count, price);
+
+        Assert.That(() => company.Validate(), Throws.Nothing);
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(company.Id, Is.EqualTo(id));
+            Assert.That(company.Name, Is.EqualTo(name));
+            Assert.That(company.PhoneNumber, Is.EqualTo(phoneNumber));
+            Assert.That(company.Count, Is.EqualTo(count));
+            Assert.That(company.Price, Is.EqualTo(price));
+        });
+    }
+
+    private static СarrierСompanyDataModel CreateDataModel(string? id, string? name, string? phoneNumber, int count, int price) =>
+        new(id, name, phoneNumber, count, price);
+}

WingsOfTheWorldTests/WingsOfTheWorldTests.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="..\WingsOfTheWorldContratcs\WingsOfTheWorldContratcs.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="NUnit.Framework" />
+  </ItemGroup>
+
+</Project>