Merge pull request #28 from Team-Kaleidoscope/devHEADv0.2mainheroku/main

Second stage: Complete

10 files changed, 2670 insertions, 0 deletions

diff --git a/src/Services/DevHive.Services.Tests/CommentService.Tests.cs b/src/Services/DevHive.Services.Tests/CommentService.Tests.cs
new file mode 100644
index 0000000..12229e8
--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/CommentService.Tests.cs
@@ -0,0 +1,314 @@
+using System;
+using System.Threading.Tasks;
+using AutoMapper;
+using DevHive.Data.Interfaces;
+using DevHive.Data.Models;
+using DevHive.Services.Models.Comment;
+using DevHive.Services.Services;
+using Moq;
+using NUnit.Framework;
+
+namespace DevHive.Services.Tests
+{
+	[TestFixture]
+	public class CommentServiceTests
+	{
+		private const string MESSAGE = "Gosho Trapov";
+		private Mock<IUserRepository> _userRepositoryMock;
+		private Mock<IPostRepository> _postRepositoryMock;
+		private Mock<ICommentRepository> _commentRepositoryMock;
+		private Mock<IMapper> _mapperMock;
+		private CommentService _commentService;
+
+		#region Setup
+		[SetUp]
+		public void Setup()
+		{
+			this._userRepositoryMock = new Mock<IUserRepository>();
+			this._postRepositoryMock = new Mock<IPostRepository>();
+			this._commentRepositoryMock = new Mock<ICommentRepository>();
+			this._mapperMock = new Mock<IMapper>();
+			this._commentService = new CommentService(this._userRepositoryMock.Object, this._postRepositoryMock.Object, this._commentRepositoryMock.Object, this._mapperMock.Object);
+		}
+		#endregion
+
+		#region AddComment
+		[Test]
+		public async Task AddComment_ReturnsNonEmptyGuid_WhenEntityIsAddedSuccessfully()
+		{
+			Guid id = Guid.NewGuid();
+			User creator = new() { Id = Guid.NewGuid() };
+			CreateCommentServiceModel createCommentServiceModel = new()
+			{
+				Message = MESSAGE
+			};
+			Comment comment = new()
+			{
+				Message = MESSAGE,
+				Id = id,
+			};
+
+			this._commentRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Comment>()))
+				.ReturnsAsync(true);
+			this._commentRepositoryMock
+				.Setup(p => p.GetCommentByIssuerAndTimeCreatedAsync(It.IsAny<Guid>(), It.IsAny<DateTime>()))
+				.ReturnsAsync(comment);
+			this._postRepositoryMock
+				.Setup(p => p.DoesPostExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(creator);
+			this._mapperMock
+				.Setup(p => p.Map<Comment>(It.IsAny<CreateCommentServiceModel>()))
+				.Returns(comment);
+
+			Guid result = await this._commentService.AddComment(createCommentServiceModel);
+
+			Assert.AreEqual(id, result);
+		}
+
+		[Test]
+		public async Task AddComment_ReturnsEmptyGuid_WhenEntityIsNotAddedSuccessfully()
+		{
+			CreateCommentServiceModel createCommentServiceModel = new()
+			{
+				Message = MESSAGE
+			};
+			Comment comment = new()
+			{
+				Message = MESSAGE,
+			};
+
+			this._commentRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Comment>()))
+				.ReturnsAsync(false);
+			this._postRepositoryMock
+				.Setup(p => p.DoesPostExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._mapperMock
+				.Setup(p => p.Map<Comment>(It.IsAny<CreateCommentServiceModel>()))
+				.Returns(comment);
+
+			Guid result = await this._commentService.AddComment(createCommentServiceModel);
+
+			Assert.IsTrue(result == Guid.Empty);
+		}
+
+		[Test]
+		public void AddComment_ThrowsException_WhenPostDoesNotExist()
+		{
+			const string EXCEPTION_MESSAGE = "Post does not exist!";
+
+			CreateCommentServiceModel createCommentServiceModel = new()
+			{
+				Message = MESSAGE
+			};
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._commentService.AddComment(createCommentServiceModel), "AddComment does not throw excpeion when the post does not exist");
+
+			// Assert.AreEqual(EXCEPTION_MESSAGE, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region GetCommentById
+		[Test]
+		public async Task GetCommentById_ReturnsTheComment_WhenItExists()
+		{
+			Guid creatorId = new();
+			User creator = new() { Id = creatorId };
+			Comment comment = new()
+			{
+				Message = MESSAGE,
+				Creator = creator
+			};
+			ReadCommentServiceModel commentServiceModel = new()
+			{
+				Message = MESSAGE
+			};
+			User user = new()
+			{
+				Id = creatorId,
+			};
+
+			this._commentRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(comment);
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(user);
+			this._mapperMock
+				.Setup(p => p.Map<ReadCommentServiceModel>(It.IsAny<Comment>()))
+				.Returns(commentServiceModel);
+
+			ReadCommentServiceModel result = await this._commentService.GetCommentById(Guid.NewGuid());
+
+			Assert.AreEqual(MESSAGE, result.Message);
+		}
+
+		[Test]
+		public void GetCommentById_ThorwsException_WhenTheUserDoesNotExist()
+		{
+			const string EXCEPTION_MESSAGE = "The user does not exist";
+			Guid creatorId = new();
+			User creator = new() { Id = creatorId };
+			Comment comment = new()
+			{
+				Message = MESSAGE,
+				Creator = creator
+			};
+
+			this._commentRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(comment);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._commentService.GetCommentById(Guid.NewGuid()), "GetCommentById does not throw exception when the user does not exist");
+
+			// Assert.AreEqual(EXCEPTION_MESSAGE, ex.Message);
+		}
+
+		[Test]
+		public void GetCommentById_ThrowsException_WhenCommentDoesNotExist()
+		{
+			string exceptionMessage = "The comment does not exist";
+			Guid creatorId = new();
+			User user = new()
+			{
+				Id = creatorId,
+			};
+
+			this._commentRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.Returns(Task.FromResult<Comment>(null));
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(user);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._commentService.GetCommentById(Guid.NewGuid()));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region UpdateComment
+		[Test]
+		public async Task UpdateComment_ReturnsTheIdOfTheComment_WhenUpdatedSuccessfully()
+		{
+			Guid id = Guid.NewGuid();
+			Comment comment = new()
+			{
+				Id = id,
+				Message = MESSAGE
+			};
+			UpdateCommentServiceModel updateCommentServiceModel = new()
+			{
+				CommentId = id,
+				NewMessage = MESSAGE
+			};
+
+			this._commentRepositoryMock
+				.Setup(p => p.DoesCommentExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._commentRepositoryMock
+				.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Comment>()))
+				.ReturnsAsync(true);
+			this._commentRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(comment);
+			this._mapperMock
+				.Setup(p => p.Map<Comment>(It.IsAny<UpdateCommentServiceModel>()))
+				.Returns(comment);
+
+			Guid result = await this._commentService.UpdateComment(updateCommentServiceModel);
+
+			Assert.AreEqual(updateCommentServiceModel.CommentId, result);
+		}
+
+		[Test]
+		public async Task UpdateComment_ReturnsEmptyId_WhenTheCommentIsNotUpdatedSuccessfully()
+		{
+			Comment comment = new()
+			{
+				Message = MESSAGE
+			};
+			UpdateCommentServiceModel updateCommentServiceModel = new()
+			{
+				CommentId = Guid.NewGuid(),
+				NewMessage = MESSAGE
+			};
+
+			this._commentRepositoryMock
+				.Setup(p => p.DoesCommentExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._commentRepositoryMock
+				.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Comment>()))
+				.ReturnsAsync(false);
+			this._mapperMock
+				.Setup(p => p.Map<Comment>(It.IsAny<UpdateCommentServiceModel>()))
+				.Returns(comment);
+
+			Guid result = await this._commentService.UpdateComment(updateCommentServiceModel);
+
+			Assert.AreEqual(Guid.Empty, result);
+		}
+
+		[Test]
+		public void UpdateComment_ThrowsArgumentException_WhenCommentDoesNotExist()
+		{
+			string exceptionMessage = "Comment does not exist!";
+			UpdateCommentServiceModel updateCommentServiceModel = new()
+			{
+			};
+
+			this._commentRepositoryMock
+				.Setup(p => p.DoesCommentExist(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._commentService.UpdateComment(updateCommentServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region DeleteComment
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task DeleteComment_ShouldReturnIfDeletionIsSuccessfull_WhenCommentExists(bool shouldPass)
+		{
+			Guid id = new();
+			Comment comment = new();
+
+			this._commentRepositoryMock
+				.Setup(p => p.DoesCommentExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._commentRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(comment);
+			this._commentRepositoryMock
+				.Setup(p => p.DeleteAsync(It.IsAny<Comment>()))
+				.ReturnsAsync(shouldPass);
+
+			bool result = await this._commentService.DeleteComment(id);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void DeleteComment_ThrowsException_WhenCommentDoesNotExist()
+		{
+			string exceptionMessage = "Comment does not exist!";
+			Guid id = new();
+
+			this._commentRepositoryMock
+				.Setup(p => p.DoesCommentExist(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._commentService.DeleteComment(id));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorrect exception message");
+		}
+		#endregion
+	}
+}
diff --git a/src/Services/DevHive.Services.Tests/DevHive.Services.Tests.csproj b/src/Services/DevHive.Services.Tests/DevHive.Services.Tests.csproj
new file mode 100644
index 0000000..4a7237b
--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/DevHive.Services.Tests.csproj
@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="5.0.4"/>
+    <PackageReference Include="Moq" Version="4.16.1"/>
+    <PackageReference Include="NUnit" Version="3.13.1"/>
+    <PackageReference Include="NUnit3TestAdapter" Version="3.17.0"/>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1"/>
+    <PackageReference Include="SonarAnalyzer.CSharp" Version="8.20.0.28934"/>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\DevHive.Services\DevHive.Services.csproj"/>
+    <ProjectReference Include="..\..\Common\DevHive.Common\DevHive.Common.csproj"/>
+    <ProjectReference Include="..\..\Common\DevHive.Common.Models\DevHive.Common.Models.csproj"/>
+  </ItemGroup>
+  <PropertyGroup>
+    <EnableNETAnalyzers>true</EnableNETAnalyzers>
+    <AnalysisLevel>latest</AnalysisLevel>
+  </PropertyGroup>
+</Project>
\ No newline at end of file
diff --git a/src/Services/DevHive.Services.Tests/FeedService.Tests.cs b/src/Services/DevHive.Services.Tests/FeedService.Tests.cs
new file mode 100644
index 0000000..1f21394
--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/FeedService.Tests.cs
@@ -0,0 +1,155 @@
+//using System;
+//using System.Collections.Generic;
+//using System.Threading.Tasks;
+//using AutoMapper;
+//using DevHive.Data.Interfaces;
+//using DevHive.Data.Models;
+//using DevHive.Services.Models;
+//using DevHive.Services.Models.Post;
+//using DevHive.Services.Services;
+//using Moq;
+//using NUnit.Framework;
+
+//namespace DevHive.Services.Tests
+//{
+//	[TestFixture]
+//	public class FeedServiceTests
+//	{
+//		private Mock<IFeedRepository> FeedRepositoryMock { get; set; }
+//		private Mock<IUserRepository> UserRepositoryMock { get; set; }
+//		private Mock<IMapper> MapperMock { get; set; }
+//		private FeedService FeedService { get; set; }
+
+//		#region SetUps
+//		[SetUp]
+//		public void Setup()
+//		{
+//			this.FeedRepositoryMock = new Mock<IFeedRepository>();
+//			this.UserRepositoryMock = new Mock<IUserRepository>();
+//			this.MapperMock = new Mock<IMapper>();
+//			this.FeedService = new FeedService(this.FeedRepositoryMock.Object, this.UserRepositoryMock.Object, this.MapperMock.Object);
+//		}
+//		#endregion
+
+//		#region GetPage
+//		[Test]
+//		public async Task GetPage_ReturnsReadPageServiceModel_WhenSuitablePostsExist()
+//		{
+//			GetPageServiceModel getPageServiceModel = new GetPageServiceModel
+//			{
+//				UserId = Guid.NewGuid()
+//			};
+
+//			User dummyUser = CreateDummyUser();
+//			User anotherDummyUser = CreateAnotherDummyUser();
+//			HashSet<User> friends = new HashSet<User>();
+//			friends.Add(anotherDummyUser);
+//			dummyUser.Friends = friends;
+
+//			List<Post> posts = new List<Post>
+//			{
+//				new Post{ Message = "Message"}
+//			};
+
+//			ReadPostServiceModel readPostServiceModel = new ReadPostServiceModel
+//			{
+//				PostId = Guid.NewGuid(),
+//				Message = "Message"
+//			};
+//			List<ReadPostServiceModel> readPostServiceModels = new List<ReadPostServiceModel>();
+//			readPostServiceModels.Add(readPostServiceModel);
+//			ReadPageServiceModel readPageServiceModel = new ReadPageServiceModel
+//			{
+//				Posts = readPostServiceModels
+//			};
+
+//			this.UserRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(dummyUser));
+//			this.FeedRepositoryMock.Setup(p => p.GetFriendsPosts(It.IsAny<List<User>>(), It.IsAny<DateTime>(), It.IsAny<int>(), It.IsAny<int>())).Returns(Task.FromResult(posts));
+//			this.MapperMock.Setup(p => p.Map<ReadPostServiceModel>(It.IsAny<Post>())).Returns(readPostServiceModel);
+
+//			ReadPageServiceModel result = await this.FeedService.GetPage(getPageServiceModel);
+
+//			Assert.GreaterOrEqual(1, result.Posts.Count, "GetPage does not correctly return the posts");
+//		}
+
+//		[Test]
+//		public void GetPage_ThrowsException_WhenNoSuitablePostsExist()
+//		{
+//			const string EXCEPTION_MESSAGE = "No friends of user have posted anything yet!";
+//			GetPageServiceModel getPageServiceModel = new GetPageServiceModel
+//			{
+//				UserId = Guid.NewGuid()
+//			};
+
+//			User dummyUser = CreateDummyUser();
+//			User anotherDummyUser = CreateAnotherDummyUser();
+//			HashSet<User> friends = new HashSet<User>();
+//			friends.Add(anotherDummyUser);
+//			dummyUser.Friends = friends;
+
+//			ReadPostServiceModel readPostServiceModel = new ReadPostServiceModel
+//			{
+//				PostId = Guid.NewGuid(),
+//				Message = "Message"
+//			};
+//			List<ReadPostServiceModel> readPostServiceModels = new List<ReadPostServiceModel>();
+//			readPostServiceModels.Add(readPostServiceModel);
+//			ReadPageServiceModel readPageServiceModel = new ReadPageServiceModel
+//			{
+//				Posts = readPostServiceModels
+//			};
+
+//			this.UserRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(dummyUser));
+//			this.FeedRepositoryMock.Setup(p => p.GetFriendsPosts(It.IsAny<List<User>>(), It.IsAny<DateTime>(), It.IsAny<int>(), It.IsAny<int>())).Returns(Task.FromResult(new List<Post>()));
+
+//			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.FeedService.GetPage(getPageServiceModel));
+
+//			Assert.AreEqual(EXCEPTION_MESSAGE, ex.Message, "Wrong exception message");
+//		}
+
+//		[Test]
+//		public void GetPage_ThrowsException_WhenUserHasNoFriendsToGetPostsFrom()
+//		{
+//			const string EXCEPTION_MESSAGE = "User has no friends to get feed from!";
+//			GetPageServiceModel getPageServiceModel = new GetPageServiceModel
+//			{
+//				UserId = Guid.NewGuid()
+//			};
+
+//			User dummyUser = CreateDummyUser();
+
+//			this.UserRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(dummyUser));
+
+//			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.FeedService.GetPage(getPageServiceModel));
+
+//			Assert.AreEqual(EXCEPTION_MESSAGE, ex.Message, "Wrong exception message");
+//		}
+//		#endregion
+
+//		#region HelperMethods
+//		private User CreateDummyUser()
+//		{
+//			return new()
+//			{
+//				Id = Guid.NewGuid(),
+//				UserName = "dummyUser",
+//				FirstName = "Spas",
+//				LastName = "Spasov",
+//				Email = "abv@abv.bg",
+//			};
+//		}
+
+//		private User CreateAnotherDummyUser()
+//		{
+//			return new()
+//			{
+//				Id = Guid.NewGuid(),
+//				UserName = "anotherDummyUser",
+//				FirstName = "Alex",
+//				LastName = "Spiridonov",
+//				Email = "a_spiridonov@abv.bg",
+//			};
+//		}
+//		#endregion
+//	}
+//}
diff --git a/src/Services/DevHive.Services.Tests/LanguageService.Tests.cs b/src/Services/DevHive.Services.Tests/LanguageService.Tests.cs
new file mode 100644
index 0000000..eefeaea
--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/LanguageService.Tests.cs
@@ -0,0 +1,315 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Threading.Tasks;
+using AutoMapper;
+using DevHive.Data.Interfaces;
+using DevHive.Data.Models;
+using DevHive.Services.Models.Language;
+using DevHive.Services.Services;
+using Moq;
+using NUnit.Framework;
+
+namespace DevHive.Services.Tests
+{
+	[TestFixture]
+	public class LanguageServiceTests
+	{
+		private Mock<ILanguageRepository> _languageRepositoryMock;
+		private Mock<IMapper> _mapperMock;
+		private LanguageService _languageService;
+
+		#region SetUps
+		[SetUp]
+		public void SetUp()
+		{
+			this._languageRepositoryMock = new Mock<ILanguageRepository>();
+			this._mapperMock = new Mock<IMapper>();
+			this._languageService = new LanguageService(this._languageRepositoryMock.Object, this._mapperMock.Object);
+		}
+		#endregion
+
+		#region CreateLanguage
+		[Test]
+		public async Task CreateLanguage_ReturnsNonEmptyGuid_WhenEntityIsAddedSuccessfully()
+		{
+			string technologyName = "Gosho Trapov";
+			Guid id = Guid.NewGuid();
+			CreateLanguageServiceModel createLanguageServiceModel = new CreateLanguageServiceModel
+			{
+				Name = technologyName
+			};
+			Language language = new Language
+			{
+				Name = technologyName,
+				Id = id
+			};
+
+			this._languageRepositoryMock
+				.Setup(p => p.DoesLanguageNameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._languageRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Language>()))
+				.ReturnsAsync(true);
+			this._languageRepositoryMock
+				.Setup(p => p.GetByNameAsync(It.IsAny<string>()))
+				.ReturnsAsync(language);
+			this._mapperMock
+				.Setup(p => p.Map<Language>(It.IsAny<CreateLanguageServiceModel>()))
+				.Returns(language);
+
+			Guid result = await this._languageService.CreateLanguage(createLanguageServiceModel);
+
+			Assert.AreEqual(id, result);
+		}
+
+		[Test]
+		public async Task CreateLanguage_ReturnsEmptyGuid_WhenEntityIsNotAddedSuccessfully()
+		{
+			string languageName = "Gosho Trapov";
+
+			CreateLanguageServiceModel createLanguageServiceModel = new CreateLanguageServiceModel
+			{
+				Name = languageName
+			};
+			Language language = new Language
+			{
+				Name = languageName
+			};
+
+			this._languageRepositoryMock
+				.Setup(p => p.DoesLanguageNameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._languageRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Language>()))
+				.ReturnsAsync(false);
+			this._mapperMock
+				.Setup(p => p.Map<Language>(It.IsAny<CreateLanguageServiceModel>()))
+				.Returns(language);
+
+			Guid result = await this._languageService.CreateLanguage(createLanguageServiceModel);
+
+			Assert.IsTrue(result == Guid.Empty);
+
+		}
+
+		[Test]
+		public void CreateLanguage_ThrowsArgumentException_WhenEntityAlreadyExists()
+		{
+			string exceptionMessage = "Language already exists!";
+			string languageName = "Gosho Trapov";
+
+			CreateLanguageServiceModel createLanguageServiceModel = new CreateLanguageServiceModel
+			{
+				Name = languageName
+			};
+			Language language = new Language
+			{
+				Name = languageName
+			};
+
+			this._languageRepositoryMock
+				.Setup(p => p.DoesLanguageNameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(true);
+
+			Exception ex = Assert.ThrowsAsync<DuplicateNameException>(() => this._languageService.CreateLanguage(createLanguageServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region GetLanguageById
+		[Test]
+		public async Task GetLanguageById_ReturnsTheLanguage_WhenItExists()
+		{
+			Guid id = Guid.NewGuid();
+			string name = "Gosho Trapov";
+			Language language = new Language
+			{
+				Name = name
+			};
+			ReadLanguageServiceModel readLanguageServiceModel = new ReadLanguageServiceModel
+			{
+				Name = name
+			};
+
+			this._languageRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(language);
+			this._mapperMock
+				.Setup(p => p.Map<ReadLanguageServiceModel>(It.IsAny<Language>()))
+				.Returns(readLanguageServiceModel);
+
+			ReadLanguageServiceModel result = await this._languageService.GetLanguageById(id);
+
+			Assert.AreEqual(name, result.Name);
+		}
+
+		[Test]
+		public void GetLanguageById_ThrowsException_WhenLanguageDoesNotExist()
+		{
+			string exceptionMessage = "The language does not exist";
+			Guid id = Guid.NewGuid();
+			this._languageRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.Returns(Task.FromResult<Language>(null));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._languageService.GetLanguageById(id));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region GetLanguages
+		[Test]
+		public void GetLanguages_ReturnsAllLanguages_IfAnyExist()
+		{
+			ReadLanguageServiceModel firstLanguage = new ReadLanguageServiceModel();
+			ReadLanguageServiceModel secondLanguage = new ReadLanguageServiceModel();
+			HashSet<ReadLanguageServiceModel> languges = new HashSet<ReadLanguageServiceModel>();
+			languges.Add(firstLanguage);
+			languges.Add(secondLanguage);
+
+			this._languageRepositoryMock
+				.Setup(p => p.GetLanguages())
+				.Returns(new HashSet<Language>());
+			this._mapperMock
+				.Setup(p => p.Map<HashSet<ReadLanguageServiceModel>>(It.IsAny<HashSet<Language>>()))
+				.Returns(languges);
+
+			HashSet<ReadLanguageServiceModel> result = this._languageService.GetLanguages();
+
+			Assert.GreaterOrEqual(2, result.Count, "GetLanguages does not return all languages");
+		}
+
+		[Test]
+		public void GetLanguages_ReturnsEmptyHashSet_IfNoLanguagesExist()
+		{
+			this._languageRepositoryMock
+				.Setup(p => p.GetLanguages())
+				.Returns(new HashSet<Language>());
+			this._mapperMock
+				.Setup(p => p.Map<HashSet<ReadLanguageServiceModel>>(It.IsAny<HashSet<Language>>()))
+				.Returns(new HashSet<ReadLanguageServiceModel>());
+
+			HashSet<ReadLanguageServiceModel> result = this._languageService.GetLanguages();
+
+			Assert.IsEmpty(result, "GetLanguages does not return empty string when no languages exist");
+		}
+		#endregion
+
+		#region UpdateLanguage
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task UpdateLanguage_ReturnsIfUpdateIsSuccessfull_WhenLanguageExistsy(bool shouldPass)
+		{
+			string name = "Gosho Trapov";
+			Guid id = Guid.NewGuid();
+			Language language = new Language
+			{
+				Name = name,
+				Id = id
+			};
+			UpdateLanguageServiceModel updateLanguageServiceModel = new UpdateLanguageServiceModel
+			{
+				Name = name,
+			};
+
+			this._languageRepositoryMock
+				.Setup(p => p.DoesLanguageExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._languageRepositoryMock
+				.Setup(p => p.DoesLanguageNameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._languageRepositoryMock
+				.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Language>()))
+				.ReturnsAsync(shouldPass);
+			this._mapperMock
+				.Setup(p => p.Map<Language>(It.IsAny<UpdateLanguageServiceModel>()))
+				.Returns(language);
+
+			bool result = await this._languageService.UpdateLanguage(updateLanguageServiceModel);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void UpdateLanguage_ThrowsArgumentException_WhenLanguageDoesNotExist()
+		{
+			string exceptionMessage = "Language does not exist!";
+			UpdateLanguageServiceModel updateTechnologyServiceModel = new UpdateLanguageServiceModel
+			{
+			};
+
+			this._languageRepositoryMock
+				.Setup(p => p.DoesLanguageExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<DuplicateNameException>(() => this._languageService.UpdateLanguage(updateTechnologyServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+
+		[Test]
+		public void UpdateLanguage_ThrowsException_WhenLanguageNameAlreadyExists()
+		{
+			string exceptionMessage = "Language name already exists in our data base!";
+			UpdateLanguageServiceModel updateTechnologyServiceModel = new UpdateLanguageServiceModel
+			{
+			};
+
+			this._languageRepositoryMock
+				.Setup(p => p.DoesLanguageExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._languageRepositoryMock
+				.Setup(p => p.DoesLanguageNameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(true);
+
+			Exception ex = Assert.ThrowsAsync<DuplicateNameException>(() => this._languageService.UpdateLanguage(updateTechnologyServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region DeleteLanguage
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task DeleteLanguage_ShouldReturnIfDeletionIsSuccessfull_WhenLanguageExists(bool shouldPass)
+		{
+			Guid id = Guid.NewGuid();
+			Language language = new Language();
+
+			this._languageRepositoryMock
+				.Setup(p => p.DoesLanguageExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._languageRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(language);
+			this._languageRepositoryMock
+				.Setup(p => p.DeleteAsync(It.IsAny<Language>()))
+				.ReturnsAsync(shouldPass);
+
+			bool result = await this._languageService.DeleteLanguage(id);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void DeleteLanguage_ThrowsException_WhenLanguageDoesNotExist()
+		{
+			string exceptionMessage = "Language does not exist!";
+			Guid id = Guid.NewGuid();
+
+			this._languageRepositoryMock
+				.Setup(p => p.DoesLanguageExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._languageService.DeleteLanguage(id));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+	}
+}
diff --git a/src/Services/DevHive.Services.Tests/PostService.Tests.cs b/src/Services/DevHive.Services.Tests/PostService.Tests.cs
new file mode 100644
index 0000000..d534511
--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/PostService.Tests.cs
@@ -0,0 +1,320 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using AutoMapper;
+using DevHive.Data.Interfaces;
+using DevHive.Data.Models;
+using DevHive.Services.Interfaces;
+using DevHive.Services.Models.Post;
+using DevHive.Services.Services;
+using Microsoft.AspNetCore.Http;
+using Moq;
+using NUnit.Framework;
+
+namespace DevHive.Services.Tests
+{
+	[TestFixture]
+	public class PostServiceTests
+	{
+		private const string MESSAGE = "Gosho Trapov";
+		private Mock<ICloudService> _cloudServiceMock;
+		private Mock<IPostRepository> _postRepositoryMock;
+		private Mock<ICommentRepository> _commentRepositoryMock;
+		private Mock<IUserRepository> _userRepositoryMock;
+		private Mock<IMapper> _mapperMock;
+		private PostService _postService;
+
+		#region SetUps
+		[SetUp]
+		public void Setup()
+		{
+			this._postRepositoryMock = new Mock<IPostRepository>();
+			this._cloudServiceMock = new Mock<ICloudService>();
+			this._userRepositoryMock = new Mock<IUserRepository>();
+			this._commentRepositoryMock = new Mock<ICommentRepository>();
+			this._mapperMock = new Mock<IMapper>();
+			this._postService = new PostService(this._cloudServiceMock.Object, this._userRepositoryMock.Object, this._postRepositoryMock.Object, this._commentRepositoryMock.Object, this._mapperMock.Object);
+		}
+		#endregion
+
+		#region CreatePost
+		[Test]
+		public async Task CreatePost_ReturnsIdOfThePost_WhenItIsSuccessfullyCreated()
+		{
+			Guid postId = Guid.NewGuid();
+			User creator = new User { Id = Guid.NewGuid() };
+			CreatePostServiceModel createPostServiceModel = new CreatePostServiceModel
+			{
+				Files = new List<IFormFile>()
+			};
+			Post post = new Post
+			{
+				Message = MESSAGE,
+				Id = postId,
+			};
+
+			this._postRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Post>()))
+				.ReturnsAsync(true);
+			this._postRepositoryMock
+				.Setup(p => p.GetPostByCreatorAndTimeCreatedAsync(It.IsAny<Guid>(), It.IsAny<DateTime>()))
+				.ReturnsAsync(post);
+			this._userRepositoryMock
+				.Setup(p => p.DoesUserExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(creator);
+			this._mapperMock
+				.Setup(p => p.Map<Post>(It.IsAny<CreatePostServiceModel>()))
+				.Returns(post);
+
+			Guid result = await this._postService.CreatePost(createPostServiceModel);
+
+			Assert.AreEqual(postId, result, "CreatePost does not return the correct id");
+		}
+
+		[Test]
+		public async Task CreatePost_ReturnsEmptyGuid_WhenItIsNotSuccessfullyCreated()
+		{
+			CreatePostServiceModel createPostServiceModel = new CreatePostServiceModel
+			{
+				Files = new List<IFormFile>()
+			};
+			Post post = new Post
+			{
+				Message = MESSAGE,
+			};
+
+			this._postRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Post>()))
+				.ReturnsAsync(false);
+			this._userRepositoryMock
+				.Setup(p => p.DoesUserExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._mapperMock
+				.Setup(p => p.Map<Post>(It.IsAny<CreatePostServiceModel>()))
+				.Returns(post);
+
+			Guid result = await this._postService.CreatePost(createPostServiceModel);
+
+			Assert.AreEqual(Guid.Empty, result, "CreatePost does not return empty id");
+		}
+
+		[Test]
+		public void CreatePost_ThrowsException_WhenUserDoesNotExist()
+		{
+			const string EXCEPTION_MESSAGE = "User does not exist!";
+			CreatePostServiceModel createPostServiceModel = new CreatePostServiceModel
+			{
+			};
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._postService.CreatePost(createPostServiceModel), "CreatePost does not throw excpeion when the user does not exist");
+
+			// Assert.AreEqual(EXCEPTION_MESSAGE, ex.Message, "Excapetion message is not correct");
+		}
+		#endregion
+
+		#region GetPostById
+		[Test]
+		public async Task GetPostById_ReturnsThePost_WhenItExists()
+		{
+			Guid creatorId = Guid.NewGuid();
+			User creator = new User { Id = creatorId };
+			Post post = new Post
+			{
+				Message = MESSAGE,
+				Creator = creator,
+				Ratings = new List<Rating>()
+			};
+			ReadPostServiceModel readPostServiceModel = new ReadPostServiceModel
+			{
+				Message = MESSAGE
+			};
+			User user = new User
+			{
+				Id = creatorId,
+			};
+
+			this._postRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(post);
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(user);
+			this._mapperMock
+				.Setup(p => p.Map<ReadPostServiceModel>(It.IsAny<Post>()))
+				.Returns(readPostServiceModel);
+
+			ReadPostServiceModel result = await this._postService.GetPostById(Guid.NewGuid());
+
+			Assert.AreEqual(MESSAGE, result.Message);
+		}
+
+		[Test]
+		public void GetPostById_ThorwsException_WhenTheUserDoesNotExist()
+		{
+			const string EXCEPTION_MESSAGE = "The user does not exist!";
+			Guid creatorId = Guid.NewGuid();
+			User creator = new User { Id = creatorId };
+			Post post = new Post
+			{
+				Message = MESSAGE,
+				Creator = creator
+			};
+
+			this._postRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(post);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._postService.GetPostById(Guid.NewGuid()), "GetPostById does not throw exception when the user does not exist");
+
+			// Assert.AreEqual(EXCEPTION_MESSAGE, ex.Message);
+		}
+
+		[Test]
+		public void GetPostById_ThrowsException_WhenCommentDoesNotExist()
+		{
+			string exceptionMessage = "The post does not exist!";
+			Guid creatorId = Guid.NewGuid();
+			User user = new User
+			{
+				Id = creatorId,
+			};
+
+			this._postRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.Returns(Task.FromResult<Post>(null));
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(user);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._postService.GetPostById(Guid.NewGuid()));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region UpdatePost
+		[Test]
+		public async Task UpdatePost_ReturnsTheIdOfThePost_WhenUpdatedSuccessfully()
+		{
+			Guid id = Guid.NewGuid();
+			Post post = new Post
+			{
+				Id = id,
+				Message = MESSAGE
+			};
+			UpdatePostServiceModel updatePostServiceModel = new UpdatePostServiceModel
+			{
+				PostId = id,
+				NewMessage = MESSAGE,
+				Files = new List<IFormFile>()
+			};
+
+			this._postRepositoryMock
+				.Setup(p => p.DoesPostExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._postRepositoryMock
+				.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Post>()))
+				.ReturnsAsync(true);
+			this._postRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(post);
+			this._mapperMock
+				.Setup(p => p.Map<Post>(It.IsAny<UpdatePostServiceModel>()))
+				.Returns(post);
+
+			Guid result = await this._postService.UpdatePost(updatePostServiceModel);
+
+			Assert.AreEqual(updatePostServiceModel.PostId, result);
+		}
+
+		[Test]
+		public async Task UpdatePost_ReturnsEmptyId_WhenThePostIsNotUpdatedSuccessfully()
+		{
+			Post post = new Post
+			{
+				Message = MESSAGE
+			};
+			UpdatePostServiceModel updatePostServiceModel = new UpdatePostServiceModel
+			{
+				PostId = Guid.NewGuid(),
+				NewMessage = MESSAGE,
+				Files = new List<IFormFile>()
+			};
+
+			this._postRepositoryMock
+				.Setup(p => p.DoesPostExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._postRepositoryMock
+				.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Post>()))
+				.ReturnsAsync(false);
+			this._mapperMock
+				.Setup(p => p.Map<Post>(It.IsAny<UpdatePostServiceModel>()))
+				.Returns(post);
+
+			Guid result = await this._postService.UpdatePost(updatePostServiceModel);
+
+			Assert.AreEqual(Guid.Empty, result);
+		}
+
+		[Test]
+		public void UpdatePost_ThrowsArgumentException_WhenCommentDoesNotExist()
+		{
+			string exceptionMessage = "Post does not exist!";
+			UpdatePostServiceModel updatePostServiceModel = new UpdatePostServiceModel
+			{
+			};
+
+			this._postRepositoryMock
+				.Setup(p => p.DoesPostExist(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._postService.UpdatePost(updatePostServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region DeletePost
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task Deletepost_ShouldReturnIfDeletionIsSuccessfull_WhenPostExists(bool shouldPass)
+		{
+			Guid id = Guid.NewGuid();
+			Post post = new Post();
+
+			this._postRepositoryMock
+				.Setup(p => p.DoesPostExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._postRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(post);
+			this._postRepositoryMock
+				.Setup(p => p.DeleteAsync(It.IsAny<Post>()))
+				.ReturnsAsync(shouldPass);
+
+			bool result = await this._postService.DeletePost(id);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void DeletePost_ThrowsException_WhenPostDoesNotExist()
+		{
+			string exceptionMessage = "Post does not exist!";
+			Guid id = Guid.NewGuid();
+
+			this._postRepositoryMock
+				.Setup(p => p.DoesPostExist(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._postService.DeletePost(id));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+	}
+}
diff --git a/src/Services/DevHive.Services.Tests/ProfilePictureService.Tests.cs b/src/Services/DevHive.Services.Tests/ProfilePictureService.Tests.cs
new file mode 100644
index 0000000..786de7b
--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/ProfilePictureService.Tests.cs
@@ -0,0 +1,84 @@
+using System;
+using System.IO;
+using System.Threading.Tasks;
+using DevHive.Data;
+using DevHive.Data.Interfaces;
+using DevHive.Data.Models;
+using DevHive.Data.Repositories;
+using DevHive.Services.Interfaces;
+using DevHive.Services.Models.ProfilePicture;
+using DevHive.Services.Services;
+using Microsoft.AspNetCore.Http;
+using Microsoft.EntityFrameworkCore;
+using Moq;
+using NUnit.Framework;
+
+namespace DevHive.Services.Tests
+{
+	[TestFixture]
+	public class ProfilePictureServiceTests
+	{
+		private DevHiveContext _context;
+		private Mock<IUserRepository> _userRepositoryMock;
+		private Mock<ProfilePictureRepository> _profilePictureRepository;
+		private Mock<ICloudService> _cloudService;
+		private ProfilePictureService _profilePictureService;
+
+		[SetUp]
+		public void Setup()
+		{
+			DbContextOptionsBuilder<DevHiveContext> options = new DbContextOptionsBuilder<DevHiveContext>()
+				.UseInMemoryDatabase("DevHive_UserRepository_Database");
+			this._context = new DevHiveContext(options.Options);
+			this._userRepositoryMock = new Mock<IUserRepository>();
+			this._profilePictureRepository = new Mock<ProfilePictureRepository>(this._context);
+			this._cloudService = new Mock<ICloudService>();
+
+			this._profilePictureService = new ProfilePictureService(
+				this._userRepositoryMock.Object,
+				this._profilePictureRepository.Object,
+				this._cloudService.Object
+			);
+		}
+
+		// [Test]
+		// public async Task InsertProfilePicture_ShouldInsertProfilePicToDatabaseAndUploadToCloud()
+		// {
+		// 	//Arrange
+		// 	Guid userId = Guid.NewGuid();
+		// 	Mock<IFormFile> fileMock = new();
+        //
+		// 	//File mocking setup
+		// 	var content = "Hello World from a Fake File";
+		// 	var fileName = "test.jpg";
+		// 	var ms = new MemoryStream();
+		// 	var writer = new StreamWriter(ms);
+		// 	writer.Write(content);
+		// 	writer.Flush();
+		// 	ms.Position = 0;
+		// 	fileMock.Setup(p => p.FileName).Returns(fileName);
+		// 	fileMock.Setup(p => p.Length).Returns(ms.Length);
+		// 	fileMock.Setup(p => p.OpenReadStream()).Returns(ms);
+        //
+		// 	//User Setup
+		// 	this._userRepositoryMock
+		// 		.Setup(p => p.GetByIdAsync(userId))
+		// 		.ReturnsAsync(new User()
+		// 		{
+		// 			Id = userId
+		// 		});
+        //
+		// 	ProfilePictureServiceModel profilePictureServiceModel = new()
+		// 	{
+		// 		UserId = userId,
+		// 		ProfilePictureFormFile = fileMock.Object
+		// 	};
+        //
+		// 	//Act
+		// 	string profilePicURL = await this._profilePictureService.UpdateProfilePicture(profilePictureServiceModel);
+        //
+		// 	//Assert
+		// 	Assert.IsNotEmpty(profilePicURL);
+		// }
+	}
+}
diff --git a/src/Services/DevHive.Services.Tests/RatingService.Tests.cs b/src/Services/DevHive.Services.Tests/RatingService.Tests.cs
new file mode 100644
index 0000000..9f4300b
--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/RatingService.Tests.cs
@@ -0,0 +1,448 @@
+using System;
+using System.Threading.Tasks;
+using AutoMapper;
+using DevHive.Data.Interfaces;
+using DevHive.Data.Models;
+using DevHive.Services.Models.Rating;
+using DevHive.Services.Services;
+using Moq;
+using NUnit.Framework;
+
+namespace DevHive.Services.Tests
+{
+    [TestFixture]
+	public class RatingServiceTests
+	{
+		private Mock<IPostRepository> _postRepositoryMock;
+		private Mock<IRatingRepository> _ratingRepositoryMock;
+		private Mock<IUserRepository> _userRepositoryMock;
+		private Mock<IMapper> _mapperMock;
+		private RatingService _ratingService;
+
+		#region SetUps
+		[SetUp]
+		public void SetUp()
+		{
+			this._postRepositoryMock = new Mock<IPostRepository>();
+			this._ratingRepositoryMock = new Mock<IRatingRepository>();
+			this._userRepositoryMock = new Mock<IUserRepository>();
+			this._mapperMock = new Mock<IMapper>();
+			this._ratingService = new RatingService(this._postRepositoryMock.Object, this._ratingRepositoryMock.Object, this._userRepositoryMock.Object, this._mapperMock.Object);
+		}
+		#endregion
+
+		#region Create
+		[Test]
+		public async Task RatePost_ReturnsNonEmptyGuid_WhenEntityIsAddedSuccessfully()
+		{
+			bool isLike = true;
+			Guid id = Guid.NewGuid();
+			Guid postId = Guid.NewGuid();
+			Guid userId = Guid.NewGuid();
+			CreateRatingServiceModel createRatingServiceModel = new CreateRatingServiceModel
+			{
+				PostId = postId,
+				UserId = userId,
+				IsLike = isLike
+			};
+			Rating rating = new Rating
+			{
+				Id = id,
+				IsLike = isLike
+			};
+			User user = new User
+			{
+				Id = userId
+			};
+			Post post = new Post
+			{
+				Id = postId
+			};
+
+			this._postRepositoryMock
+				.Setup(p => p.DoesPostExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._ratingRepositoryMock
+				.Setup(p => p.UserRatedPost(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(user);
+			this._postRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(post);
+			this._ratingRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Rating>()))
+				.ReturnsAsync(true);
+			this._ratingRepositoryMock
+				.Setup(p => p.GetRatingByUserAndPostId(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.ReturnsAsync(rating);
+			this._mapperMock
+				.Setup(p => p.Map<Rating>(It.IsAny<CreateRatingServiceModel>()))
+				.Returns(rating);
+
+			Guid result = await this._ratingService.RatePost(createRatingServiceModel);
+
+			Assert.AreEqual(id, result);
+		}
+
+		[Test]
+		public async Task RatePost_ReturnsEmptyGuid_WhenEntityIsNotAddedSuccessfully()
+		{
+			bool isLike = true;
+			Guid id = Guid.NewGuid();
+			Guid postId = Guid.NewGuid();
+			Guid userId = Guid.NewGuid();
+			CreateRatingServiceModel createRatingServiceModel = new CreateRatingServiceModel
+			{
+				PostId = postId,
+				UserId = userId,
+				IsLike = isLike
+			};
+			Rating rating = new Rating
+			{
+				Id = id,
+				IsLike = isLike
+			};
+			User user = new User
+			{
+				Id = userId
+			};
+			Post post = new Post
+			{
+				Id = postId
+			};
+
+			this._postRepositoryMock
+				.Setup(p => p.DoesPostExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._ratingRepositoryMock
+				.Setup(p => p.UserRatedPost(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(user);
+			this._postRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(post);
+			this._ratingRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Rating>()))
+				.ReturnsAsync(false);
+			this._mapperMock
+				.Setup(p => p.Map<Rating>(It.IsAny<CreateRatingServiceModel>()))
+				.Returns(rating);
+
+			Guid result = await this._ratingService.RatePost(createRatingServiceModel);
+
+			Assert.AreEqual(result, Guid.Empty);
+		}
+		#endregion
+
+		#region Read
+		[Test]
+		public async Task GetRatingById_ReturnsTheRating_WhenItExists()
+		{
+			Guid id = Guid.NewGuid();
+			bool isLike = true;
+			User user = new User
+			{
+				Id = Guid.NewGuid()
+			};
+			Rating rating = new Rating
+			{
+				Id = id,
+				IsLike = isLike,
+				User = user
+			};
+			ReadRatingServiceModel readRatingServiceModel = new ReadRatingServiceModel
+			{
+				Id = id,
+				IsLike = isLike
+			};
+
+			this._ratingRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(rating);
+			this._mapperMock
+				.Setup(p => p.Map<ReadRatingServiceModel>(It.IsAny<Rating>()))
+				.Returns(readRatingServiceModel);
+
+			ReadRatingServiceModel result = await this._ratingService.GetRatingById(id);
+
+			Assert.AreEqual(isLike, result.IsLike);
+		}
+
+		// [Test]
+		// public void GetRatingById_ThrowsException_WhenRatingDoesNotExist()
+		// {
+		// 	string exceptionMessage = "The rating does not exist";
+		// 	this._ratingRepositoryMock
+		// 		.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+		// 		.Returns(Task.FromResult<Rating>(null));
+        //
+		// 	Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this._ratingService.GetRatingById(Guid.Empty));
+        //
+		// 	Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		// }
+
+		[Test]
+		public async Task GetRatingByPostAndUser_ReturnsTheRating_WhenItExists()
+		{
+			Guid id = Guid.NewGuid();
+			bool isLike = true;
+			User user = new User
+			{
+				Id = Guid.NewGuid()
+			};
+			Rating rating = new Rating
+			{
+				Id = id,
+				IsLike = isLike,
+				User = user
+			};
+			ReadRatingServiceModel readRatingServiceModel = new ReadRatingServiceModel
+			{
+				Id = id,
+				IsLike = isLike
+			};
+
+			this._ratingRepositoryMock
+				.Setup(p => p.GetRatingByUserAndPostId(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.ReturnsAsync(rating);
+			this._mapperMock
+				.Setup(p => p.Map<ReadRatingServiceModel>(It.IsAny<Rating>()))
+				.Returns(readRatingServiceModel);
+
+			ReadRatingServiceModel result = await this._ratingService.GetRatingByPostAndUser(user.Id, Guid.Empty);
+
+			Assert.AreEqual(isLike, result.IsLike);
+		}
+
+		// [Test]
+		// public void GetRatingByPostAndUser_ThrowsException_WhenRatingDoesNotExist()
+		// {
+		// 	string exceptionMessage = "The rating does not exist";
+		// 	this._ratingRepositoryMock
+		// 		.Setup(p => p.GetRatingByUserAndPostId(It.IsAny<Guid>(), It.IsAny<Guid>()))
+		// 		.Returns(Task.FromResult<Rating>(null));
+        //
+		// 	Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this._ratingService.GetRatingById(Guid.Empty));
+        //
+		// 	Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		// }
+		#endregion
+
+		#region Update
+		[Test]
+		public async Task UpdateRating_ReturnsObject_WhenRatingIsUpdatedSuccessfully()
+		{
+			Guid id = Guid.NewGuid();
+			bool isLike = true;
+			UpdateRatingServiceModel updateRatingServiceModel = new UpdateRatingServiceModel
+			{
+				Id = id,
+				IsLike = isLike
+			};
+			User user = new User
+			{
+				Id = Guid.NewGuid()
+			};
+			Rating rating = new Rating
+			{
+				Id = id,
+				IsLike = isLike,
+				User = user
+			};
+			ReadRatingServiceModel readRatingServiceModel = new ReadRatingServiceModel
+			{
+				Id = id,
+				IsLike = isLike
+			};
+
+			this._ratingRepositoryMock
+				.Setup(p => p.GetRatingByUserAndPostId(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.ReturnsAsync(rating);
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(user);
+			this._ratingRepositoryMock
+				.Setup(p => p.UserRatedPost(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._ratingRepositoryMock
+				.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Rating>()))
+				.ReturnsAsync(true);
+			this._mapperMock
+				.Setup(p => p.Map<ReadRatingServiceModel>(It.IsAny<Rating>()))
+				.Returns(readRatingServiceModel);
+
+			ReadRatingServiceModel result = await this._ratingService.UpdateRating(updateRatingServiceModel);
+
+			Assert.AreEqual(result, readRatingServiceModel);
+		}
+
+		[Test]
+		public async Task UpdateRating_ReturnsNull_WhenRatingIsNotUpdatedSuccessfully()
+		{
+			Guid id = Guid.NewGuid();
+			bool isLike = true;
+			UpdateRatingServiceModel updateRatingServiceModel = new UpdateRatingServiceModel
+			{
+				Id = id,
+				IsLike = isLike
+			};
+			User user = new User
+			{
+				Id = Guid.NewGuid()
+			};
+			Rating rating = new Rating
+			{
+				Id = id,
+				IsLike = isLike,
+				User = user
+			};
+			ReadRatingServiceModel readRatingServiceModel = new ReadRatingServiceModel
+			{
+				Id = id,
+				IsLike = isLike
+			};
+
+			this._ratingRepositoryMock
+				.Setup(p => p.GetRatingByUserAndPostId(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.ReturnsAsync(rating);
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(user);
+			this._ratingRepositoryMock
+				.Setup(p => p.UserRatedPost(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._ratingRepositoryMock
+				.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Rating>()))
+				.ReturnsAsync(false);
+
+			ReadRatingServiceModel result = await this._ratingService.UpdateRating(updateRatingServiceModel);
+
+			Assert.IsNull(result);
+		}
+
+		[Test]
+		public void UpdateRating_ThrowsException_WhenRatingDoesNotExists()
+		{
+			string exceptionMessage = "Rating does not exist!";
+			UpdateRatingServiceModel updateRatingServiceModel = new UpdateRatingServiceModel
+			{
+				Id = Guid.Empty,
+				IsLike = true
+			};
+
+			this._ratingRepositoryMock
+				.Setup(p => p.GetRatingByUserAndPostId(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.Returns(Task.FromResult<Rating>(null));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._ratingService.UpdateRating(updateRatingServiceModel));
+
+			// Assert.AreEqual(ex.Message, exceptionMessage);
+		}
+
+		[Test]
+		public void UpdateRating_ThrowsException_WhenUserHasNotRatedPost()
+		{
+			string exceptionMessage = "User has not rated the post!";
+			Guid id = Guid.NewGuid();
+			bool isLike = true;
+			UpdateRatingServiceModel updateRatingServiceModel = new UpdateRatingServiceModel
+			{
+				Id = id,
+				IsLike = isLike
+			};
+			User user = new User
+			{
+				Id = Guid.NewGuid()
+			};
+			Rating rating = new Rating
+			{
+				Id = id,
+				IsLike = isLike,
+				User = user
+			};
+
+			this._ratingRepositoryMock
+				.Setup(p => p.GetRatingByUserAndPostId(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.ReturnsAsync(rating);
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(user);
+			this._ratingRepositoryMock
+				.Setup(p => p.UserRatedPost(It.IsAny<Guid>(), It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this._ratingService.UpdateRating(updateRatingServiceModel));
+
+			// Assert.AreEqual(ex.Message, exceptionMessage);
+		}
+		#endregion
+
+		#region Delete
+		[Test]
+		public async Task DeleteRating_ReturnsTrue_WhenRatingIsDeletedSuccessfully()
+		{
+			Guid ratingId = Guid.NewGuid();
+			Rating rating = new Rating
+			{
+				Id = ratingId
+			};
+
+			this._ratingRepositoryMock
+				.Setup(p => p.DoesRatingExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._ratingRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.Returns(Task.FromResult<Rating>(null));
+			this._ratingRepositoryMock
+				.Setup(p => p.DeleteAsync(It.IsAny<Rating>()))
+				.ReturnsAsync(true);
+
+			bool result = await this._ratingService.DeleteRating(ratingId);
+
+			Assert.IsTrue(result);
+		}
+
+		[Test]
+		public async Task DeleteRating_ReturnsFalse_WhenRatingIsNotDeletedSuccessfully()
+		{
+			Guid ratingId = Guid.NewGuid();
+			Rating rating = new Rating
+			{
+				Id = ratingId
+			};
+
+			this._ratingRepositoryMock
+				.Setup(p => p.DoesRatingExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._ratingRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.Returns(Task.FromResult<Rating>(null));
+			this._ratingRepositoryMock
+				.Setup(p => p.DeleteAsync(It.IsAny<Rating>()))
+				.ReturnsAsync(false);
+
+			bool result = await this._ratingService.DeleteRating(ratingId);
+
+			Assert.IsFalse(result);
+		}
+
+		[Test]
+		public void DeleteRating_ThrowsException_WhenRatingDoesNotExist()
+		{
+			string exceptionMessage = "Rating does not exist!";
+
+			this._ratingRepositoryMock
+				.Setup(p => p.DoesRatingExist(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._ratingService.DeleteRating(Guid.Empty));
+
+			// Assert.AreEqual(ex.Message, exceptionMessage);
+		}
+		#endregion
+	}
+}
diff --git a/src/Services/DevHive.Services.Tests/RoleService.Tests.cs b/src/Services/DevHive.Services.Tests/RoleService.Tests.cs
new file mode 100644
index 0000000..c286c80
--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/RoleService.Tests.cs
@@ -0,0 +1,271 @@
+using System;
+using System.Data;
+using System.Threading.Tasks;
+using AutoMapper;
+using DevHive.Data.Interfaces;
+using DevHive.Data.Models;
+using DevHive.Services.Models.Role;
+using DevHive.Services.Services;
+using Moq;
+using NUnit.Framework;
+
+namespace DevHive.Services.Tests
+{
+	[TestFixture]
+	public class RoleServiceTests
+	{
+		private Mock<IRoleRepository> _roleRepositoryMock;
+		private Mock<IMapper> _mapperMock;
+		private RoleService _roleService;
+
+		#region SetUps
+		[SetUp]
+		public void Setup()
+		{
+			this._roleRepositoryMock = new Mock<IRoleRepository>();
+			this._mapperMock = new Mock<IMapper>();
+			this._roleService = new RoleService(this._roleRepositoryMock.Object, this._mapperMock.Object);
+		}
+		#endregion
+
+		#region CreateRole
+		[Test]
+		public async Task CreateRole_ReturnsNonEmptyGuid_WhenEntityIsAddedSuccessfully()
+		{
+			string roleName = "Gosho Trapov";
+			Guid id = Guid.NewGuid();
+			CreateRoleServiceModel createRoleServiceModel = new CreateRoleServiceModel
+			{
+				Name = roleName
+			};
+			Role role = new()
+			{
+				Name = roleName,
+				Id = id
+			};
+
+			this._roleRepositoryMock
+				.Setup(p => p.DoesNameExist(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._roleRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Role>()))
+				.ReturnsAsync(true);
+			this._roleRepositoryMock
+				.Setup(p => p.GetByNameAsync(It.IsAny<string>()))
+				.ReturnsAsync(role);
+			this._mapperMock
+				.Setup(p => p.Map<Role>(It.IsAny<CreateRoleServiceModel>()))
+				.Returns(role);
+
+			Guid result = await this._roleService.CreateRole(createRoleServiceModel);
+
+			Assert.AreEqual(id, result);
+		}
+
+		[Test]
+		public async Task CreateRoley_ReturnsEmptyGuid_WhenEntityIsNotAddedSuccessfully()
+		{
+			string roleName = "Gosho Trapov";
+
+			CreateRoleServiceModel createRoleServiceModel = new CreateRoleServiceModel
+			{
+				Name = roleName
+			};
+			Role role = new Role
+			{
+				Name = roleName
+			};
+
+			this._roleRepositoryMock
+				.Setup(p => p.DoesNameExist(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._roleRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Role>()))
+				.ReturnsAsync(false);
+			this._mapperMock
+				.Setup(p => p.Map<Role>(It.IsAny<CreateRoleServiceModel>()))
+				.Returns(role);
+
+			Guid result = await this._roleService.CreateRole(createRoleServiceModel);
+
+			Assert.IsTrue(result == Guid.Empty);
+		}
+
+		[Test]
+		public void CreateTechnology_ThrowsArgumentException_WhenEntityAlreadyExists()
+		{
+			string exceptionMessage = "Role already exists!";
+			string roleName = "Gosho Trapov";
+
+			CreateRoleServiceModel createRoleServiceModel = new CreateRoleServiceModel
+			{
+				Name = roleName
+			};
+
+			this._roleRepositoryMock
+				.Setup(p => p.DoesNameExist(It.IsAny<string>()))
+				.ReturnsAsync(true);
+
+			Exception ex = Assert.ThrowsAsync<DuplicateNameException>(() => this._roleService.CreateRole(createRoleServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region GetRoleById
+		[Test]
+		public async Task GetRoleById_ReturnsTheRole_WhenItExists()
+		{
+			Guid id = Guid.NewGuid();
+			string name = "Gosho Trapov";
+			Role role = new Role
+			{
+				Name = name
+			};
+			RoleServiceModel roleServiceModel = new RoleServiceModel
+			{
+				Name = name
+			};
+
+			this._roleRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(role);
+			this._mapperMock
+				.Setup(p => p.Map<RoleServiceModel>(It.IsAny<Role>()))
+				.Returns(roleServiceModel);
+
+			RoleServiceModel result = await this._roleService.GetRoleById(id);
+
+			Assert.AreEqual(name, result.Name);
+		}
+
+		[Test]
+		public void GetRoleById_ThrowsException_WhenRoleDoesNotExist()
+		{
+			string exceptionMessage = "Role does not exist!";
+			Guid id = Guid.NewGuid();
+			this._roleRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.Returns(Task.FromResult<Role>(null));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._roleService.GetRoleById(id));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region UpdateRole
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task UpdateRole_ReturnsIfUpdateIsSuccessfull_WhenRoleExistsy(bool shouldPass)
+		{
+			string name = "Gosho Trapov";
+			Guid id = Guid.NewGuid();
+			Role role = new Role
+			{
+				Name = name,
+				Id = id
+			};
+			UpdateRoleServiceModel updateRoleServiceModel = new UpdateRoleServiceModel
+			{
+				Name = name,
+			};
+
+			this._roleRepositoryMock
+				.Setup(p => p.DoesRoleExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._roleRepositoryMock
+				.Setup(p => p.DoesNameExist(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._roleRepositoryMock
+				.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Role>()))
+				.ReturnsAsync(shouldPass);
+			this._mapperMock
+				.Setup(p => p.Map<Role>(It.IsAny<UpdateRoleServiceModel>()))
+				.Returns(role);
+
+			bool result = await this._roleService.UpdateRole(updateRoleServiceModel);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void UpdateRole_ThrowsException_WhenRoleDoesNotExist()
+		{
+			string exceptionMessage = "Role does not exist!";
+			UpdateRoleServiceModel updateRoleServiceModel = new UpdateRoleServiceModel
+			{
+			};
+
+			this._roleRepositoryMock
+				.Setup(p => p.DoesRoleExist(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._roleService.UpdateRole(updateRoleServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+
+		[Test]
+		public void UpdateRole_ThrowsException_WhenRoleNameAlreadyExists()
+		{
+			string exceptionMessage = "Role name already exists!";
+			UpdateRoleServiceModel updateRoleServiceModel = new UpdateRoleServiceModel
+			{
+			};
+
+			this._roleRepositoryMock
+				.Setup(p => p.DoesRoleExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._roleRepositoryMock
+				.Setup(p => p.DoesNameExist(It.IsAny<string>()))
+				.ReturnsAsync(true);
+
+			Exception ex = Assert.ThrowsAsync<DuplicateNameException>(() => this._roleService.UpdateRole(updateRoleServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region DeleteRole
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task DeleteRole_ShouldReturnIfDeletionIsSuccessfull_WhenRoleExists(bool shouldPass)
+		{
+			Guid id = Guid.NewGuid();
+			Role role = new Role();
+
+			this._roleRepositoryMock
+				.Setup(p => p.DoesRoleExist(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._roleRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(role);
+			this._roleRepositoryMock
+				.Setup(p => p.DeleteAsync(It.IsAny<Role>()))
+				.ReturnsAsync(shouldPass);
+
+			bool result = await this._roleService.DeleteRole(id);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void DeleteRole_ThrowsException_WhenRoleDoesNotExist()
+		{
+			string exceptionMessage = "Role does not exist!";
+			Guid id = Guid.NewGuid();
+
+			this._roleRepositoryMock
+				.Setup(p => p.DoesRoleExist(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._roleService.DeleteRole(id));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+	}
+}
diff --git a/src/Services/DevHive.Services.Tests/TechnologyServices.Tests.cs b/src/Services/DevHive.Services.Tests/TechnologyServices.Tests.cs
new file mode 100644
index 0000000..e11650f
--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/TechnologyServices.Tests.cs
@@ -0,0 +1,311 @@
+using AutoMapper;
+using DevHive.Data.Interfaces;
+using DevHive.Data.Models;
+using DevHive.Services.Models.Technology;
+using DevHive.Services.Services;
+using Moq;
+using NUnit.Framework;
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Threading.Tasks;
+
+namespace DevHive.Services.Tests
+{
+	[TestFixture]
+	public class TechnologyServicesTests
+	{
+		private Mock<ITechnologyRepository> _technologyRepositoryMock;
+		private Mock<IMapper> _mapperMock;
+		private TechnologyService _technologyService;
+
+		#region SetUps
+		[SetUp]
+		public void Setup()
+		{
+			this._technologyRepositoryMock = new Mock<ITechnologyRepository>();
+			this._mapperMock = new Mock<IMapper>();
+			this._technologyService = new TechnologyService(this._technologyRepositoryMock.Object, this._mapperMock.Object);
+		}
+		#endregion
+
+		#region CreateTechnology
+		[Test]
+		public async Task CreateTechnology_ReturnsNonEmptyGuid_WhenEntityIsAddedSuccessfully()
+		{
+			string technologyName = "Gosho Trapov";
+			Guid id = Guid.NewGuid();
+			CreateTechnologyServiceModel createTechnologyServiceModel = new()
+			{
+				Name = technologyName
+			};
+			Technology technology = new()
+			{
+				Name = technologyName,
+				Id = id
+			};
+
+			this._technologyRepositoryMock
+				.Setup(p => p.DoesTechnologyNameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._technologyRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Technology>()))
+				.ReturnsAsync(true);
+			this._technologyRepositoryMock
+				.Setup(p => p.GetByNameAsync(It.IsAny<string>()))
+				.ReturnsAsync(technology);
+			this._mapperMock
+				.Setup(p => p.Map<Technology>(It.IsAny<CreateTechnologyServiceModel>()))
+				.Returns(technology);
+
+			Guid result = await this._technologyService.CreateTechnology(createTechnologyServiceModel);
+
+			Assert.AreEqual(id, result);
+		}
+
+		[Test]
+		public async Task CreateTechnology_ReturnsEmptyGuid_WhenEntityIsNotAddedSuccessfully()
+		{
+			string technologyName = "Gosho Trapov";
+
+			CreateTechnologyServiceModel createTechnologyServiceModel = new()
+			{
+				Name = technologyName
+			};
+			Technology technology = new()
+			{
+				Name = technologyName
+			};
+
+			this._technologyRepositoryMock
+				.Setup(p => p.DoesTechnologyNameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._technologyRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<Technology>()))
+				.ReturnsAsync(false);
+			this._mapperMock
+				.Setup(p => p.Map<Technology>(It.IsAny<CreateTechnologyServiceModel>()))
+				.Returns(technology);
+
+			Guid result = await this._technologyService.CreateTechnology(createTechnologyServiceModel);
+
+			Assert.IsTrue(result == Guid.Empty);
+		}
+
+		[Test]
+		public void CreateTechnology_ThrowsArgumentException_WhenEntityAlreadyExists()
+		{
+			string exceptionMessage = "Technology already exists!";
+			string technologyName = "Gosho Trapov";
+
+			CreateTechnologyServiceModel createTechnologyServiceModel = new()
+			{
+				Name = technologyName
+			};
+
+			this._technologyRepositoryMock
+				.Setup(p => p.DoesTechnologyNameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(true);
+
+			Exception ex = Assert.ThrowsAsync<DuplicateNameException>(() => this._technologyService.CreateTechnology(createTechnologyServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region GetTechnologyById
+		[Test]
+		public async Task GetTechnologyById_ReturnsTheTechnology_WhenItExists()
+		{
+			Guid id = Guid.NewGuid();
+			string name = "Gosho Trapov";
+			Technology technology = new()
+			{
+				Name = name
+			};
+			ReadTechnologyServiceModel readTechnologyServiceModel = new()
+			{
+				Name = name
+			};
+
+			this._technologyRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(technology);
+			this._mapperMock
+				.Setup(p => p.Map<ReadTechnologyServiceModel>(It.IsAny<Technology>()))
+				.Returns(readTechnologyServiceModel);
+
+			ReadTechnologyServiceModel result = await this._technologyService.GetTechnologyById(id);
+
+			Assert.AreEqual(name, result.Name);
+		}
+
+		[Test]
+		public void GetTechnologyById_ThrowsException_WhenTechnologyDoesNotExist()
+		{
+			string exceptionMessage = "The technology does not exist";
+			Guid id = Guid.NewGuid();
+			this._technologyRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.Returns(Task.FromResult<Technology>(null));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._technologyService.GetTechnologyById(id));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region GetTechnologies
+		[Test]
+		public void GetTechnologies_ReturnsAllLanguages_IfAnyExist()
+		{
+			ReadTechnologyServiceModel firstTechnology = new ReadTechnologyServiceModel();
+			ReadTechnologyServiceModel secondTechnology = new ReadTechnologyServiceModel();
+			HashSet<ReadTechnologyServiceModel> technologies = new HashSet<ReadTechnologyServiceModel>();
+			technologies.Add(firstTechnology);
+			technologies.Add(secondTechnology);
+
+			this._technologyRepositoryMock
+				.Setup(p => p.GetTechnologies())
+				.Returns(new HashSet<Technology>());
+			this._mapperMock
+				.Setup(p => p.Map<HashSet<ReadTechnologyServiceModel>>(It.IsAny<HashSet<Technology>>()))
+				.Returns(technologies);
+
+			HashSet<ReadTechnologyServiceModel> result = this._technologyService.GetTechnologies();
+
+			Assert.GreaterOrEqual(2, result.Count, "GetTechnologies does not return all technologies");
+		}
+
+		[Test]
+		public void GetLanguages_ReturnsEmptyHashSet_IfNoLanguagesExist()
+		{
+			this._technologyRepositoryMock
+				.Setup(p => p.GetTechnologies())
+				.Returns(new HashSet<Technology>());
+			this._mapperMock
+				.Setup(p => p.Map<HashSet<ReadTechnologyServiceModel>>(It.IsAny<HashSet<Technology>>()))
+				.Returns(new HashSet<ReadTechnologyServiceModel>());
+
+			HashSet<ReadTechnologyServiceModel> result = this._technologyService.GetTechnologies();
+
+			Assert.IsEmpty(result, "GetTechnologies does not return empty string when no technologies exist");
+		}
+		#endregion
+
+		#region UpdateTechnology
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task UpdateTechnology_ReturnsIfUpdateIsSuccessfull_WhenTechnologyExistsy(bool shouldPass)
+		{
+			string name = "Gosho Trapov";
+			Guid id = Guid.NewGuid();
+			Technology technology = new Technology
+			{
+				Name = name,
+				Id = id
+			};
+			UpdateTechnologyServiceModel updatetechnologyServiceModel = new UpdateTechnologyServiceModel
+			{
+				Name = name,
+			};
+
+			this._technologyRepositoryMock
+				.Setup(p => p.DoesTechnologyExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._technologyRepositoryMock
+				.Setup(p => p.DoesTechnologyNameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._technologyRepositoryMock
+				.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Technology>()))
+				.ReturnsAsync(shouldPass);
+			this._mapperMock
+				.Setup(p => p.Map<Technology>(It.IsAny<UpdateTechnologyServiceModel>()))
+				.Returns(technology);
+
+			bool result = await this._technologyService.UpdateTechnology(updatetechnologyServiceModel);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void UpdateTechnology_ThrowsException_WhenTechnologyDoesNotExist()
+		{
+			string exceptionMessage = "Technology does not exist!";
+			UpdateTechnologyServiceModel updateTechnologyServiceModel = new UpdateTechnologyServiceModel
+			{
+			};
+
+			this._technologyRepositoryMock
+				.Setup(p => p.DoesTechnologyExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._technologyService.UpdateTechnology(updateTechnologyServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+
+		[Test]
+		public void UpdateTechnology_ThrowsException_WhenTechnologyNameAlreadyExists()
+		{
+			string exceptionMessage = "Technology name already exists!";
+			UpdateTechnologyServiceModel updateTechnologyServiceModel = new UpdateTechnologyServiceModel
+			{
+			};
+
+			this._technologyRepositoryMock
+				.Setup(p => p.DoesTechnologyExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._technologyRepositoryMock
+				.Setup(p => p.DoesTechnologyNameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(true);
+
+			Exception ex = Assert.ThrowsAsync<DuplicateNameException>(() => this._technologyService.UpdateTechnology(updateTechnologyServiceModel));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region DeleteTechnology
+
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task DeleteTechnology_ShouldReturnIfDeletionIsSuccessfull_WhenTechnologyExists(bool shouldPass)
+		{
+			Guid id = Guid.NewGuid();
+			Technology technology = new Technology();
+
+			this._technologyRepositoryMock
+				.Setup(p => p.DoesTechnologyExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._technologyRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(technology);
+			this._technologyRepositoryMock
+				.Setup(p => p.DeleteAsync(It.IsAny<Technology>()))
+				.ReturnsAsync(shouldPass);
+
+			bool result = await this._technologyService.DeleteTechnology(id);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void DeleteTechnology_ThrowsException_WhenTechnologyDoesNotExist()
+		{
+			string exceptionMessage = "Technology does not exist!";
+			Guid id = Guid.NewGuid();
+
+			this._technologyRepositoryMock
+				.Setup(p => p.DoesTechnologyExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._technologyService.DeleteTechnology(id));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+	}
+}
diff --git a/src/Services/DevHive.Services.Tests/UserService.Tests.cs b/src/Services/DevHive.Services.Tests/UserService.Tests.cs
new file mode 100644
index 0000000..44ca7b4
--- /dev/null
+++ b/src/Services/DevHive.Services.Tests/UserService.Tests.cs
@@ -0,0 +1,429 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.IO;
+using System.Threading.Tasks;
+using AutoMapper;
+using DevHive.Common.Jwt.Interfaces;
+using DevHive.Common.Models.Identity;
+using DevHive.Data.Interfaces;
+using DevHive.Data.Models;
+using DevHive.Services.Interfaces;
+using DevHive.Services.Models.User;
+using DevHive.Services.Services;
+using Moq;
+using NUnit.Framework;
+
+namespace DevHive.Services.Tests
+{
+    [TestFixture]
+	public class UserServiceTests
+	{
+		private Mock<ICloudService> _cloudServiceMock;
+		private Mock<IUserRepository> _userRepositoryMock;
+		private Mock<IRoleRepository> _roleRepositoryMock;
+		private Mock<ILanguageRepository> _languageRepositoryMock;
+		private Mock<ITechnologyRepository> _technologyRepositoryMock;
+		private Mock<IMapper> _mapperMock;
+		private Mock<IJwtService> _jwtServiceMock;
+		private UserService _userService;
+
+		#region SetUps
+		[SetUp]
+		public void Setup()
+		{
+			this._userRepositoryMock = new Mock<IUserRepository>();
+			this._roleRepositoryMock = new Mock<IRoleRepository>();
+			this._cloudServiceMock = new Mock<ICloudService>();
+			this._languageRepositoryMock = new Mock<ILanguageRepository>();
+			this._technologyRepositoryMock = new Mock<ITechnologyRepository>();
+			this._jwtServiceMock = new Mock<IJwtService>();
+			this._mapperMock = new Mock<IMapper>();
+			this._userService = new UserService(
+				this._userRepositoryMock.Object,
+				this._languageRepositoryMock.Object,
+				this._roleRepositoryMock.Object,
+				this._technologyRepositoryMock.Object,
+				this._mapperMock.Object,
+				this._jwtServiceMock.Object);
+		}
+		#endregion
+
+		#region LoginUser
+		[Test]
+		public async Task LoginUser_ReturnsTokenModel_WhenLoggingUserIn()
+		{
+			string somePassword = "I'm_Nigga";
+
+			LoginServiceModel loginServiceModel = new()
+			{
+				Password = somePassword
+			};
+			User user = new()
+			{
+				Id = Guid.NewGuid(),
+				PasswordHash = somePassword,
+				UserName = "g_trapov"
+			};
+
+			this._userRepositoryMock
+				.Setup(p => p.DoesUsernameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(true);
+			this._userRepositoryMock
+				.Setup(p => p.VerifyPassword(It.IsAny<User>(), It.IsAny<string>()))
+				.ReturnsAsync(true);
+			this._userRepositoryMock
+				.Setup(p => p.GetByUsernameAsync(It.IsAny<string>()))
+				.ReturnsAsync(user);
+
+			string jwtSecurityToken = "akjdhfakndvlahdfkljahdlfkjhasldf";
+			this._jwtServiceMock
+				.Setup(p => p.GenerateJwtToken(It.IsAny<Guid>(), It.IsAny<string>(), It.IsAny<List<string>>()))
+				.Returns(jwtSecurityToken);
+			TokenModel tokenModel = await this._userService.LoginUser(loginServiceModel);
+
+			Assert.AreEqual(jwtSecurityToken, tokenModel.Token, "LoginUser does not return the correct token");
+		}
+
+		[Test]
+		public void LoginUser_ThrowsException_WhenUserNameDoesNotExist()
+		{
+			LoginServiceModel loginServiceModel = new();
+
+			this._userRepositoryMock
+				.Setup(p => p.DoesUsernameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<InvalidDataException>(
+				() => this._userService.LoginUser(loginServiceModel));
+
+			Assert.AreEqual("Invalid The Username!", ex.Message, "Incorrect Exception message");
+		}
+
+		[Test]
+		public void LoginUser_ThrowsException_WhenPasswordIsIncorrect()
+		{
+			string somePassword = "I'm_Nigga";
+
+			LoginServiceModel loginServiceModel = new()
+			{
+				Password = somePassword
+			};
+			User user = new()
+			{
+				Id = Guid.NewGuid(),
+			};
+
+			this._userRepositoryMock
+				.Setup(p => p.DoesUsernameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(true);
+			this._userRepositoryMock
+				.Setup(p => p.GetByUsernameAsync(It.IsAny<string>()))
+				.ReturnsAsync(user);
+
+			Exception ex = Assert.ThrowsAsync<InvalidDataException>(() => this._userService.LoginUser(loginServiceModel));
+
+			Assert.AreEqual("Incorrect password!", ex.Message, "Incorrect Exception message");
+		}
+		#endregion
+
+		#region RegisterUser
+		[Test]
+		public async Task RegisterUser_ReturnsTokenModel_WhenUserIsSuccessfull()
+		{
+			Guid userId = Guid.NewGuid();
+			RegisterServiceModel registerServiceModel = new()
+			{
+				Password = "ImNigga"
+			};
+			User user = new()
+			{
+				Id = userId,
+				UserName = "g_trapov"
+			};
+			Role role = new() { Name = Role.DefaultRole };
+
+			this._userRepositoryMock
+				.Setup(p => p.DoesUsernameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._userRepositoryMock
+				.Setup(p => p.VerifyPassword(It.IsAny<User>(), It.IsAny<string>()))
+				.ReturnsAsync(true);
+			this._userRepositoryMock
+				.Setup(p => p.DoesEmailExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._userRepositoryMock
+				.Setup(p => p.AddAsync(It.IsAny<User>()))
+				.ReturnsAsync(true);
+			this._userRepositoryMock
+				.Setup(p => p.AddRoleToUser(It.IsAny<User>(), It.IsAny<string>()))
+				.ReturnsAsync(true);
+			this._userRepositoryMock
+				.Setup(p => p.GetByUsernameAsync(It.IsAny<string>()))
+				.ReturnsAsync(user);
+
+			this._roleRepositoryMock
+				.Setup(p => p.DoesNameExist(It.IsAny<string>()))
+				.ReturnsAsync(true);
+			this._roleRepositoryMock
+				.Setup(p => p.GetByNameAsync(It.IsAny<string>()))
+				.ReturnsAsync(role);
+
+			this._mapperMock
+				.Setup(p => p.Map<User>(It.IsAny<RegisterServiceModel>()))
+				.Returns(user);
+
+			string jwtSecurityToken = "akjdhfakndvlahdfkljahdlfkjhasldf";
+			this._jwtServiceMock
+				.Setup(p => p.GenerateJwtToken(It.IsAny<Guid>(), It.IsAny<string>(), It.IsAny<List<string>>()))
+				.Returns(jwtSecurityToken);
+			TokenModel tokenModel = await this._userService.RegisterUser(registerServiceModel);
+
+			Assert.AreEqual(jwtSecurityToken, tokenModel.Token, "RegisterUser does not return the correct token");
+		}
+
+		[Test]
+		public void RegisterUser_ThrowsException_WhenUsernameAlreadyExists()
+		{
+			const string EXCEPTION_MESSAGE = "The Username already exists!";
+			RegisterServiceModel registerServiceModel = new();
+
+			this._userRepositoryMock
+				.Setup(p => p.DoesUsernameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(true);
+
+			Exception ex = Assert.ThrowsAsync<DuplicateNameException>(
+				() => this._userService.RegisterUser(registerServiceModel));
+
+			Assert.AreEqual(EXCEPTION_MESSAGE, ex.Message, "Incorrect Exception message");
+		}
+
+		[Test]
+		public void RegisterUser_ThrowsException_WhenEmailAlreadyExists()
+		{
+			RegisterServiceModel registerServiceModel = new();
+
+			this._userRepositoryMock
+				.Setup(p => p.DoesUsernameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(false);
+			this._userRepositoryMock
+				.Setup(p => p.DoesEmailExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(true);
+
+			Exception ex = Assert.ThrowsAsync<DuplicateNameException>(() => this._userService.RegisterUser(registerServiceModel));
+
+			Assert.AreEqual("The Email already exists!", ex.Message, "Incorrect Exception message");
+		}
+		#endregion
+
+		#region GetUserById
+		[Test]
+		public async Task GetUserById_ReturnsTheUser_WhenItExists()
+		{
+			Guid id = new();
+			string username = "g_trapov";
+			User user = new();
+			UserServiceModel userServiceModel = new()
+			{
+				UserName = username
+			};
+
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(user);
+			this._mapperMock
+				.Setup(p => p.Map<UserServiceModel>(It.IsAny<User>()))
+				.Returns(userServiceModel);
+
+			UserServiceModel result = await this._userService.GetUserById(id);
+
+			Assert.AreEqual(username, result.UserName);
+		}
+
+		[Test]
+		public void GetTechnologyById_ThrowsException_WhenTechnologyDoesNotExist()
+		{
+			Guid id = new();
+			this._userRepositoryMock
+				.Setup(p => p.GetByIdAsync(It.IsAny<Guid>()))
+				.Returns(Task.FromResult<User>(null));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._userService.GetUserById(id));
+
+			// Assert.AreEqual("User does not exist!", ex.Message, "Incorrect exception message");
+		}
+		#endregion
+
+		#region GetUserByUsername
+		[Test]
+		public async Task GetUserByUsername_ReturnsTheCorrectUser_IfItExists()
+		{
+			string username = "g_trapov";
+			User user = new();
+			UserServiceModel userServiceModel = new()
+			{
+				UserName = username
+			};
+
+			this._userRepositoryMock
+				.Setup(p => p.GetByUsernameAsync(It.IsAny<string>()))
+				.ReturnsAsync(user);
+			this._mapperMock
+				.Setup(p => p.Map<UserServiceModel>(It.IsAny<User>()))
+				.Returns(userServiceModel);
+
+			UserServiceModel result = await this._userService.GetUserByUsername(username);
+
+			Assert.AreEqual(username, result.UserName, "GetUserByUsername does not return the correct user");
+		}
+
+		[Test]
+		public void GetUserByUsername_ThrowsException_IfUserDoesNotExist()
+		{
+			string username = "g_trapov";
+
+			this._userRepositoryMock
+				.Setup(p => p.GetByUsernameAsync(It.IsAny<string>()))
+				.Returns(Task.FromResult<User>(null));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._userService.GetUserByUsername(username));
+
+			// Assert.AreEqual("User does not exist!", ex.Message, "Incorrect exception message");
+		}
+		#endregion
+
+		#region UpdateUser
+		// [Test]
+		// [TestCase(true)]
+		// [TestCase(false)]
+		// public async Task UpdateUser_ReturnsIfUpdateIsSuccessfull_WhenUserExistsy(bool shouldPass)
+		// {
+		// 	string username = "g_trapov";
+		// 	Guid id = Guid.NewGuid();
+		// 	User user = new User
+		// 	{
+		// 		UserName = username,
+		// 		Id = id,
+		// 	};
+		// 	UpdateUserServiceModel updateUserServiceModel = new UpdateUserServiceModel
+		// 	{
+		// 		UserName = username,
+		// 	};
+		// 	UserServiceModel userServiceModel = new UserServiceModel
+		// 	{
+		// 		UserName = username,
+		// 	};
+		// 	Role role = new Role { };
+		//
+		// 	this._userRepositoryMock.Setup(p =>
+		// p.DoesUserExistAsync(It.IsAny<Guid>()))
+		// 	.ReturnsAsync(true);
+		// 	this._userRepositoryMock.Setup(p =>
+		// p.DoesUsernameExistAsync(It.IsAny<string>()))
+		// 	.ReturnsAsync(false);
+		// 	this._userRepositoryMock.Setup(p =>
+		// p.DoesUserHaveThisUsernameAsync(It.IsAny<Guid>(), It.IsAny<string>()))
+		// 	.Returns(true);
+		// 	this._userRepositoryMock.Setup(p =>
+		// p.EditAsync(It.IsAny<Guid>(), It.IsAny<User>()))
+		// 	.ReturnsAsync(shouldPass);
+		// 	this._userRepositoryMock.Setup(p =>
+		// p.GetByIdAsync(It.IsAny<Guid>()))
+		// 	.ReturnsAsync(user);
+		// 	this._mapperMock.Setup(p =>
+		// p.Map<User>(It.IsAny<UpdateUserServiceModel>()))
+		// 	.Returns(user);
+		// 	this._mapperMock.Setup(p =>
+		// p.Map<UserServiceModel>(It.IsAny<User>()))
+		// 	.Returns(userServiceModel);
+		//
+		// 	if (shouldPass)
+		// 	{
+		// 		UserServiceModel result = await this._userService.UpdateUser(updateUserServiceModel);
+		//
+		// 		Assert.AreEqual(updateUserServiceModel.UserName, result.UserName);
+		// 	}
+		// 	else
+		// 	{
+		// 		const string EXCEPTION_MESSAGE = string.Format(ErrorMessages.CannotEdit, ClassesConstants.User.ToLower());
+		//
+		// 		Exception ex = Assert.ThrowsAsync<InvalidOperationException>(() => this._userService.UpdateUser(updateUserServiceModel);
+		//
+		// 		Assert.AreEqual(EXCEPTION_MESSAGE, ex.Message, "Incorrect exception message");
+		// 	}
+		// }
+
+		[Test]
+		public void UpdateUser_ThrowsException_WhenUserDoesNotExist()
+		{
+			UpdateUserServiceModel updateUserServiceModel = new();
+
+			this._userRepositoryMock
+				.Setup(p => p.DoesUserExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._userService.UpdateUser(updateUserServiceModel));
+
+			// Assert.AreEqual("User does not exist!", ex.Message, "Incorrect exception message");
+		}
+
+		[Test]
+		public void UpdateUser_ThrowsException_WhenUserNameAlreadyExists()
+		{
+			UpdateUserServiceModel updateUserServiceModel = new();
+
+			this._userRepositoryMock
+				.Setup(p => p.DoesUserExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(true);
+			this._userRepositoryMock
+				.Setup(p => p.DoesUsernameExistAsync(It.IsAny<string>()))
+				.ReturnsAsync(true);
+
+			Exception ex = Assert.ThrowsAsync<DuplicateNameException>(() => this._userService.UpdateUser(updateUserServiceModel));
+
+			Assert.AreEqual("the username already exists!", ex.Message, "Incorrect exception message");
+		}
+		#endregion
+
+		#region DeleteUser
+		//TO DO: compleate once Viko has looked into the return type of UserService.DeleteUser
+		// [Test]
+		// [TestCase(true)]
+		// [TestCase(false)]
+		// public async Task DeleteUser_ShouldReturnIfDeletionIsSuccessfull_WhenUserExists(bool shouldPass)
+		// {
+		// 	Guid id = Guid.NewGuid();
+		// 	User user = new User();
+		//
+		// 	this._userRepositoryMock.Setup(p =>
+		// p.DoesUserExistAsync(It.IsAny<Guid>()))
+		// 			.ReturnsAsync(true);
+		// 	this._userRepositoryMock.Setup(p =>
+		// p.GetByIdAsync(It.IsAny<Guid>()))
+		// 	.ReturnsAsync(user);
+		// 	this._userRepositoryMock.Setup(p =>
+		// p.DeleteAsync(It.IsAny<User>()))
+		// 			.ReturnsAsync(shouldPass);
+		//
+		// 	bool result = await this._userService.DeleteUser(id);
+		//
+		// 	Assert.AreEqual(shouldPass, result);
+		// }
+		//
+		[Test]
+		public void DeleteUser_ThrowsException_WhenUserDoesNotExist()
+		{
+			string exceptionMessage = "User does not exist!";
+			Guid id = new();
+
+			this._userRepositoryMock
+				.Setup(p => p.DoesUserExistAsync(It.IsAny<Guid>()))
+				.ReturnsAsync(false);
+
+			Exception ex = Assert.ThrowsAsync<ArgumentNullException>(() => this._userService.DeleteUser(id));
+
+			// Assert.AreEqual(exceptionMessage, ex.Message, "Incorrect exception message");
+		}
+		#endregion
+	}
+}