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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 { get; set; }
private Mock<IPostRepository> PostRepositoryMock { get; set; }
private Mock<ICommentRepository> CommentRepositoryMock { get; set; }
private Mock<IMapper> MapperMock { get; set; }
private CommentService CommentService { get; set; }
#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 User { Id = Guid.NewGuid() };
CreateCommentServiceModel createCommentServiceModel = new CreateCommentServiceModel
{
Message = MESSAGE
};
Comment comment = new Comment
{
Message = MESSAGE,
Id = id,
};
this.CommentRepositoryMock.Setup(p => p.AddAsync(It.IsAny<Comment>())).Returns(Task.FromResult(true));
this.CommentRepositoryMock.Setup(p => p.GetCommentByIssuerAndTimeCreatedAsync(It.IsAny<Guid>(), It.IsAny<DateTime>())).Returns(Task.FromResult(comment));
this.PostRepositoryMock.Setup(p => p.DoesPostExist(It.IsAny<Guid>())).Returns(Task.FromResult(true));
this.UserRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(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 CreateCommentServiceModel
{
Message = MESSAGE
};
Comment comment = new Comment
{
Message = MESSAGE,
};
this.CommentRepositoryMock.Setup(p => p.AddAsync(It.IsAny<Comment>())).Returns(Task.FromResult(false));
this.PostRepositoryMock.Setup(p => p.DoesPostExist(It.IsAny<Guid>())).Returns(Task.FromResult(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 CreateCommentServiceModel
{
Message = MESSAGE
};
Exception ex = Assert.ThrowsAsync<ArgumentException>(() => 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 Guid();
User creator = new User { Id = creatorId };
Comment comment = new Comment
{
Message = MESSAGE,
Creator = creator
};
ReadCommentServiceModel commentServiceModel = new ReadCommentServiceModel
{
Message = MESSAGE
};
User user = new User
{
Id = creatorId,
};
this.CommentRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(comment));
this.UserRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(user));
this.MapperMock.Setup(p => p.Map<ReadCommentServiceModel>(It.IsAny<Comment>())).Returns(commentServiceModel);
ReadCommentServiceModel result = await this.CommentService.GetCommentById(new Guid());
Assert.AreEqual(MESSAGE, result.Message);
}
[Test]
public void GetCommentById_ThorwsException_WhenTheUserDoesNotExist()
{
const string EXCEPTION_MESSAGE = "The user does not exist";
Guid creatorId = new Guid();
User creator = new User { Id = creatorId };
Comment comment = new Comment
{
Message = MESSAGE,
Creator = creator
};
this.CommentRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(comment));
Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.CommentService.GetCommentById(new Guid()), "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 Guid();
User user = new User
{
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>())).Returns(Task.FromResult(user));
Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.CommentService.GetCommentById(new Guid()));
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 Comment
{
Id = id,
Message = MESSAGE
};
UpdateCommentServiceModel updateCommentServiceModel = new UpdateCommentServiceModel
{
CommentId = id,
NewMessage = MESSAGE
};
this.CommentRepositoryMock.Setup(p => p.DoesCommentExist(It.IsAny<Guid>())).Returns(Task.FromResult(true));
this.CommentRepositoryMock.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Comment>())).Returns(Task.FromResult(true));
this.CommentRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(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 Comment
{
Message = MESSAGE
};
UpdateCommentServiceModel updateCommentServiceModel = new UpdateCommentServiceModel
{
CommentId = Guid.NewGuid(),
NewMessage = MESSAGE
};
this.CommentRepositoryMock.Setup(p => p.DoesCommentExist(It.IsAny<Guid>())).Returns(Task.FromResult(true));
this.CommentRepositoryMock.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Comment>())).Returns(Task.FromResult(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 UpdateCommentServiceModel
{
};
this.CommentRepositoryMock.Setup(p => p.DoesCommentExist(It.IsAny<Guid>())).Returns(Task.FromResult(false));
Exception ex = Assert.ThrowsAsync<ArgumentException>(() => 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 Guid();
Comment comment = new Comment();
this.CommentRepositoryMock.Setup(p => p.DoesCommentExist(It.IsAny<Guid>())).Returns(Task.FromResult(true));
this.CommentRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(comment));
this.CommentRepositoryMock.Setup(p => p.DeleteAsync(It.IsAny<Comment>())).Returns(Task.FromResult(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 Guid();
this.CommentRepositoryMock.Setup(p => p.DoesCommentExist(It.IsAny<Guid>())).Returns(Task.FromResult(false));
Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.CommentService.DeleteComment(id));
Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
}
#endregion
}
}
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