Add initial implementation of API, database, and user management components.

MikrocopTests/AuthServiceTests.cs

@@ -0,0 +1,104 @@
+using MikrocopApi.Dtos;
+using MikrocopApi.Exceptions;
+using MikrocopApi.Services;
+using MikrocopDb.Entities;
+using MikrocopDb.Repositories;
+using Moq;
+
+namespace MikrocopTests;
+
+[TestFixture]
+public sealed class AuthServiceTests
+{
+    [Test]
+    public async Task LoginAsync_ReturnsToken_WhenCredentialsAreValid()
+    {
+        var user = CreateUser();
+        var repositoryMock = new Mock<IUserRepository>(MockBehavior.Strict);
+        var hashingServiceMock = new Mock<IPasswordHashingService>(MockBehavior.Strict);
+        var jwtTokenServiceMock = new Mock<IJwtTokenService>(MockBehavior.Strict);
+        var request = new LoginRequestDto { UserName = user.UserName, Password = "ValidPassword!123" };
+        var expectedExpiry = DateTime.UtcNow.AddHours(1);
+
+        repositoryMock
+            .Setup(x => x.GetByUserNameAsync(request.UserName, It.IsAny<CancellationToken>()))
+            .ReturnsAsync(user);
+        hashingServiceMock
+            .Setup(x => x.VerifyPassword(request.Password, user.PasswordHash, user.PasswordSalt))
+            .Returns(true);
+        jwtTokenServiceMock
+            .Setup(x => x.Generate(user))
+            .Returns(("token-value", expectedExpiry));
+
+        var sut = new AuthService(repositoryMock.Object, hashingServiceMock.Object, jwtTokenServiceMock.Object);
+
+        var result = await sut.LoginAsync(request);
+
+        Assert.That(result.AccessToken, Is.EqualTo("token-value"));
+        Assert.That(result.ExpiresAtUtc, Is.EqualTo(expectedExpiry));
+        Assert.That(result.TokenType, Is.EqualTo("Bearer"));
+        repositoryMock.VerifyAll();
+        hashingServiceMock.VerifyAll();
+        jwtTokenServiceMock.VerifyAll();
+    }
+
+    [Test]
+    public void LoginAsync_ThrowsUnauthorized_WhenUserDoesNotExist()
+    {
+        var repositoryMock = new Mock<IUserRepository>(MockBehavior.Strict);
+        var hashingServiceMock = new Mock<IPasswordHashingService>(MockBehavior.Strict);
+        var jwtTokenServiceMock = new Mock<IJwtTokenService>(MockBehavior.Strict);
+        var request = new LoginRequestDto { UserName = "missing", Password = "ValidPassword!123" };
+
+        repositoryMock
+            .Setup(x => x.GetByUserNameAsync(request.UserName, It.IsAny<CancellationToken>()))
+            .ReturnsAsync((UserEntity?)null);
+
+        var sut = new AuthService(repositoryMock.Object, hashingServiceMock.Object, jwtTokenServiceMock.Object);
+
+        Assert.ThrowsAsync<UnauthorizedException>(() => sut.LoginAsync(request));
+        repositoryMock.VerifyAll();
+        hashingServiceMock.VerifyNoOtherCalls();
+        jwtTokenServiceMock.VerifyNoOtherCalls();
+    }
+
+    [Test]
+    public void LoginAsync_ThrowsUnauthorized_WhenPasswordIsInvalid()
+    {
+        var user = CreateUser();
+        var repositoryMock = new Mock<IUserRepository>(MockBehavior.Strict);
+        var hashingServiceMock = new Mock<IPasswordHashingService>(MockBehavior.Strict);
+        var jwtTokenServiceMock = new Mock<IJwtTokenService>(MockBehavior.Strict);
+        var request = new LoginRequestDto { UserName = user.UserName, Password = "WrongPassword!123" };
+
+        repositoryMock
+            .Setup(x => x.GetByUserNameAsync(request.UserName, It.IsAny<CancellationToken>()))
+            .ReturnsAsync(user);
+        hashingServiceMock
+            .Setup(x => x.VerifyPassword(request.Password, user.PasswordHash, user.PasswordSalt))
+            .Returns(false);
+
+        var sut = new AuthService(repositoryMock.Object, hashingServiceMock.Object, jwtTokenServiceMock.Object);
+
+        Assert.ThrowsAsync<UnauthorizedException>(() => sut.LoginAsync(request));
+        repositoryMock.VerifyAll();
+        hashingServiceMock.VerifyAll();
+        jwtTokenServiceMock.VerifyNoOtherCalls();
+    }
+
+    private static UserEntity CreateUser()
+    {
+        return new UserEntity
+        {
+            Id = Guid.NewGuid(),
+            UserName = "test-user",
+            FullName = "Test User",
+            Email = "test@example.com",
+            MobileNumber = "+38640111222",
+            Language = "en",
+            Culture = "en-US",
+            PasswordHash = "hash",
+            PasswordSalt = "salt"
+        };
+    }
+}