diff --git a/Govor.API.Tests/UnitTests/Services/AdminStuff/InvitationGeneratorTests.cs b/Govor.API.Tests/UnitTests/Services/AdminStuff/InvitationGeneratorTests.cs
new file mode 100644
index 0000000..76ecad5
--- /dev/null
+++ b/Govor.API.Tests/UnitTests/Services/AdminStuff/InvitationGeneratorTests.cs
@@ -0,0 +1,89 @@
+using AutoFixture;
+using Govor.API.Services.AdminsStuff;
+using Govor.API.Services.AdminsStuff.Interfaces;
+using Govor.Core.Models;
+using Govor.Core.Repositories.Invaites;
+using Moq;
+
+namespace Govor.API.Tests.UnitTests.Services.AdminStuff;
+
+[TestFixture]
+public class InvitationGeneratorTests
+{
+    private Fixture _fixture;
+    private Mock<IInvitesRepository> _invitesRepositoryMock;
+    private IInvitationGenerator _invitationGenerator;
+
+    [SetUp]
+    public void SetUp()
+    {
+        _fixture = new Fixture();
+        _fixture.Behaviors.OfType<ThrowingRecursionBehavior>().ToList().ForEach(b => _fixture.Behaviors.Remove(b));
+        _fixture.Behaviors.Add(new OmitOnRecursionBehavior());
+
+        _invitesRepositoryMock = new Mock<IInvitesRepository>();
+        _invitationGenerator = new InvitationGenerator(_invitesRepositoryMock.Object);
+    }
+    
+    [Test]
+    public async Task GenerateInvitationCode_ShouldReturnNonEmptyString_WhenCalled()
+    {
+        // Arrange
+        var endDate = _fixture.Create<DateTime>();
+        var maxUsers = _fixture.Create<int>();
+        var isAdmin = _fixture.Create<bool>();
+        var description = _fixture.Create<string>();
+
+        // Act
+        var code = await _invitationGenerator.GenerateInvitationCode(endDate, maxUsers, isAdmin, description);
+
+        // Assert
+        Assert.That(code, Is.Not.Null.And.Not.Empty);
+    }
+    
+
+    [Test]
+    public async Task GenerateInvitationCode_ShouldCallAddAsyncOnRepository_WithCorrectInvitation()
+    {
+        // Arrange
+        var endDate = DateTime.UtcNow.AddDays(7); // Specific date for easier assertion if needed
+        var maxUsers = 10;
+        var isAdmin = false;
+        var description = "Test Invitation";
+        Invitation capturedInvitation = null;
+
+        _invitesRepositoryMock.Setup(repo => repo.AddAsync(It.IsAny<Invitation>()))
+            .Callback<Invitation>(inv => capturedInvitation = inv)
+            .Returns(Task.CompletedTask);
+
+        // Act
+        var code = await _invitationGenerator.GenerateInvitationCode(endDate, maxUsers, isAdmin, description);
+
+        // Assert
+        _invitesRepositoryMock.Verify(repo => repo.AddAsync(It.IsAny<Invitation>()), Times.Once);
+        Assert.That(capturedInvitation, Is.Not.Null);
+        Assert.That(capturedInvitation.EndDate.ToUniversalTime(), Is.EqualTo(endDate.ToUniversalTime()));
+        Assert.That(capturedInvitation.MaxParticipants, Is.EqualTo(maxUsers));
+        Assert.That(capturedInvitation.IsAdmin, Is.EqualTo(isAdmin));
+        Assert.That(capturedInvitation.Description, Is.EqualTo(description));
+        Assert.That(capturedInvitation.Code, Is.EqualTo(code));
+        Assert.That(capturedInvitation.IsActive, Is.True); // Assuming new invitations are active by default
+    }
+    
+    [Test]
+    public async Task GenerateInvitationCode_ShouldGenerateUniqueCode_WhenCalled()
+    {
+        // Arrange
+        var endDate = _fixture.Create<DateTime>();
+        var maxUsers = _fixture.Create<int>();
+        var isAdmin = _fixture.Create<bool>();
+        var description = _fixture.Create<string>();
+
+        // Act
+        var code1 = await _invitationGenerator.GenerateInvitationCode(endDate, maxUsers, isAdmin, description);
+        var code2 = await _invitationGenerator.GenerateInvitationCode(endDate, maxUsers, isAdmin, description);
+
+        // Assert
+        Assert.That(code1, Is.Not.EqualTo(code2));
+    }
+}
\ No newline at end of file
diff --git a/Govor.API.Tests/UnitTests/Services/Authentication/JwtServiceTests.cs b/Govor.API.Tests/UnitTests/Services/Authentication/JwtServiceTests.cs
new file mode 100644
index 0000000..4f3d36e
--- /dev/null
+++ b/Govor.API.Tests/UnitTests/Services/Authentication/JwtServiceTests.cs
@@ -0,0 +1,59 @@
+using System.IdentityModel.Tokens.Jwt;
+using AutoFixture;
+using Govor.API.Services.Authentication;
+using Govor.API.Services.Authentication.Interfaces;
+using Govor.Core.Models;
+using Microsoft.Extensions.Options;
+using Moq;
+
+namespace Govor.API.Tests.UnitTests.Services.Authentication;
+
+[TestFixture]
+public class JwtServiceTests
+{
+    private Fixture _fixture;
+    private Mock<IOptions<JwtOption>> _jwtOptionsMock;
+    private Mock<IInvitesService> _invitesServiceMock;
+    private IJwtService _jwtService;
+
+    private JwtOption _testJwtOptions;
+
+    [SetUp]
+    public void SetUp()
+    {
+        _fixture = new Fixture();
+        _fixture.Behaviors.OfType<ThrowingRecursionBehavior>().ToList().ForEach(b => _fixture.Behaviors.Remove(b));
+        _fixture.Behaviors.Add(new OmitOnRecursionBehavior());
+
+        _testJwtOptions = new JwtOption
+        {
+            SecretKeу = "THIS IS A TEST SECRET KEY THAT IS LONG ENOUGH", // Ensure key size is sufficient for HMACSHA256
+            Hours = 1
+        };
+
+        _jwtOptionsMock = new Mock<IOptions<JwtOption>>();
+        _jwtOptionsMock.Setup(o => o.Value).Returns(_testJwtOptions);
+
+        _invitesServiceMock = new Mock<IInvitesService>();
+        
+        _jwtService = new JwtService(_jwtOptionsMock.Object, _invitesServiceMock.Object);
+    }
+
+    [Test]
+    public void GenerateJwtToken_ShouldReturnValidJwtString()
+    {
+        // Arrange
+        var user = _fixture.Create<User>();
+        var expectedRole = "User";
+        _invitesServiceMock.Setup(s => s.GetRole(user)).Returns(Task.FromResult(expectedRole));
+        // Act 
+        var tokenString = _jwtService.GenerateJwtToken(user);
+
+        // Assert
+        Assert.That(tokenString, Is.Not.Null.And.Not.Empty);
+        
+        // Attempt to parse the token to ensure it's a JWT
+        var handler = new JwtSecurityTokenHandler();
+        Assert.DoesNotThrow(() => handler.ReadJwtToken(tokenString));
+    }
+}
\ No newline at end of file