2 files changed, 191 insertions, 2 deletions
diff --git a/src/DevHive.Tests/DevHive.Services.Tests/LanguageService.Tests.cs b/src/DevHive.Tests/DevHive.Services.Tests/LanguageService.Tests.cs
index 67f1284..fd4a828 100644
--- a/src/DevHive.Tests/DevHive.Services.Tests/LanguageService.Tests.cs
+++ b/src/DevHive.Tests/DevHive.Services.Tests/LanguageService.Tests.cs
@@ -104,7 +104,7 @@ namespace DevHive.Services.Tests
 		{
 			Guid id = new Guid();
 			string name = "Gosho Trapov";
-			Language language = new Language()
+			Language language = new Language
 			{
 				Name = name
 			};
@@ -161,7 +161,7 @@ namespace DevHive.Services.Tests
 		}
 
 		[Test]
-		public void UpdateLanguage_ReturnsIfUpdateIsSuccessfull_WhenLanguageExistsy()
+		public void UpdateLanguage_ThrowsArgumentException_WhenLanguageDoesNotExist()
 		{
 			string exceptionMessage = "Language does not exist!";
 			UpdateLanguageServiceModel updateTechnologyServiceModel = new UpdateLanguageServiceModel
diff --git a/src/DevHive.Tests/DevHive.Services.Tests/PostService.Tests.cs b/src/DevHive.Tests/DevHive.Services.Tests/PostService.Tests.cs
new file mode 100644
index 0000000..bf6817b
--- /dev/null
+++ b/src/DevHive.Tests/DevHive.Services.Tests/PostService.Tests.cs
@@ -0,0 +1,189 @@
+using System;
+using System.Threading.Tasks;
+using AutoMapper;
+using DevHive.Data.Interfaces.Repositories;
+using DevHive.Data.Models;
+using DevHive.Services.Models.Post.Comment;
+using DevHive.Services.Services;
+using Moq;
+using NUnit.Framework;
+
+namespace DevHive.Services.Tests
+{
+	[TestFixture]
+	public class PostServiceTests
+	{
+		private const string MESSAGE = "Gosho Trapov";
+		private Mock<IPostRepository> PostRepositoryMock { get; set; }
+		private Mock<IUserRepository> UserRepositoryMock { get; set; }
+		private Mock<IMapper> MapperMock { get; set; }
+		private PostService PostService { get; set; }
+
+		[SetUp]
+		public void Setup()
+		{
+			this.PostRepositoryMock = new Mock<IPostRepository>();
+			this.MapperMock = new Mock<IMapper>();
+			this.UserRepositoryMock = new Mock<IUserRepository>();
+			this.PostService = new PostService(this.PostRepositoryMock.Object, this.UserRepositoryMock.Object, this.MapperMock.Object);
+		}
+
+		#region Comment
+		#region Create
+		[Test]
+		public async Task AddComment_ReturnsNonEmptyGuid_WhenEntityIsAddedSuccessfully()
+		{
+			Guid id = Guid.NewGuid();
+			CreateCommentServiceModel createCommentServiceModel = new CreateCommentServiceModel
+			{
+				Message = MESSAGE
+			};
+			Comment comment = new Comment
+			{
+				Message = MESSAGE,
+				Id = id
+			};
+
+			this.PostRepositoryMock.Setup(p => p.AddCommentAsync(It.IsAny<Comment>())).Returns(Task.FromResult(true));
+			this.PostRepositoryMock.Setup(p => p.GetCommentByIssuerAndTimeCreatedAsync(It.IsAny<Guid>(), It.IsAny<DateTime>())).Returns(Task.FromResult(comment));
+			this.MapperMock.Setup(p => p.Map<Comment>(It.IsAny<CreateCommentServiceModel>())).Returns(comment);
+
+			Guid result = await this.PostService.AddComment(createCommentServiceModel);
+
+			Assert.AreEqual(id, result);
+		}
+
+		[Test]
+		public async Task CreateLanguage_ReturnsEmptyGuid_WhenEntityIsNotAddedSuccessfully()
+		{
+			CreateCommentServiceModel createCommentServiceModel = new CreateCommentServiceModel
+			{
+				Message = MESSAGE
+			};
+			Comment comment = new Comment
+			{
+				Message = MESSAGE,
+			};
+
+			this.PostRepositoryMock.Setup(p => p.AddCommentAsync(It.IsAny<Comment>())).Returns(Task.FromResult(false));
+			this.MapperMock.Setup(p => p.Map<Comment>(It.IsAny<CreateCommentServiceModel>())).Returns(comment);
+
+			Guid result = await this.PostService.AddComment(createCommentServiceModel);
+
+			Assert.IsTrue(result == Guid.Empty);
+		}
+		#endregion
+
+		#region Read
+		[Test]
+		public async Task GetCommentById_ReturnsTheComment_WhenItExists()
+		{
+			Guid id = new Guid();
+			Comment comment = new Comment
+			{
+				Message = MESSAGE
+			};
+			CommentServiceModel commentServiceModel = new CommentServiceModel
+			{
+				Message = MESSAGE
+			};
+
+			this.PostRepositoryMock.Setup(p => p.GetCommentByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(comment));
+			this.MapperMock.Setup(p => p.Map<CommentServiceModel>(It.IsAny<Comment>())).Returns(commentServiceModel);
+
+			CommentServiceModel result = await this.PostService.GetCommentById(id);
+
+			Assert.AreEqual(MESSAGE, result.Message);
+		}
+
+		[Test]
+		public void GetLanguageById_ThrowsException_WhenLanguageDoesNotExist()
+		{
+			string exceptionMessage = "The comment does not exist";
+			Guid id = new Guid();
+			this.PostRepositoryMock.Setup(p => p.GetCommentByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult<Comment>(null));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.PostService.GetCommentById(id));
+
+			Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region Update
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task UpdateComment_ReturnsIfUpdateIsSuccessfull_WhenCommentExistsy(bool shouldPass)
+		{
+			Comment comment = new Comment
+			{
+				Message = MESSAGE
+			};
+			UpdateCommentServiceModel updateCommentServiceModel = new UpdateCommentServiceModel
+			{
+				Message = MESSAGE
+			};
+
+			this.PostRepositoryMock.Setup(p => p.DoesCommentExist(It.IsAny<Guid>())).Returns(Task.FromResult(true));
+			this.PostRepositoryMock.Setup(p => p.EditCommentAsync(It.IsAny<Comment>())).Returns(Task.FromResult(shouldPass));
+			this.MapperMock.Setup(p => p.Map<Comment>(It.IsAny<UpdateCommentServiceModel>())).Returns(comment);
+
+			bool result = await this.PostService.UpdateComment(updateCommentServiceModel);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void UpdateLanguage_ThrowsArgumentException_WhenCommentDoesNotExist()
+		{
+			string exceptionMessage = "Comment does not exist!";
+			UpdateCommentServiceModel updateCommentServiceModel = new UpdateCommentServiceModel
+			{
+			};
+
+			this.PostRepositoryMock.Setup(p => p.DoesCommentExist(It.IsAny<Guid>())).Returns(Task.FromResult(false));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.PostService.UpdateComment(updateCommentServiceModel));
+
+			Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region Delete
+		[Test]
+		[TestCase(true)]
+		[TestCase(false)]
+		public async Task DeleteComment_ShouldReturnIfDeletionIsSuccessfull_WhenCommentExists(bool shouldPass)
+		{
+			Guid id = new Guid();
+			Comment comment = new Comment();
+
+			this.PostRepositoryMock.Setup(p => p.DoesCommentExist(It.IsAny<Guid>())).Returns(Task.FromResult(true));
+			this.PostRepositoryMock.Setup(p => p.GetCommentByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(comment));
+			this.PostRepositoryMock.Setup(p => p.DeleteCommentAsync(It.IsAny<Comment>())).Returns(Task.FromResult(shouldPass));
+
+			bool result = await this.PostService.DeleteComment(id);
+
+			Assert.AreEqual(shouldPass, result);
+		}
+
+		[Test]
+		public void DeleteLanguage_ThrowsException_WhenLanguageDoesNotExist()
+		{
+			string exceptionMessage = "Comment does not exist!";
+			Guid id = new Guid();
+
+			this.PostRepositoryMock.Setup(p => p.DoesCommentExist(It.IsAny<Guid>())).Returns(Task.FromResult(false));
+
+			Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.PostService.DeleteComment(id));
+
+			Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
+		}
+		#endregion
+
+		#region ValidateJwtForComment
+		//TO DO: Implement
+		#endregion
+		#endregion
+	}
+}