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using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using AutoMapper;
using DevHive.Data.Interfaces.Repositories;
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 { get; set; }
private Mock<IPostRepository> PostRepositoryMock { get; set; }
private Mock<ICommentRepository> CommentRepositoryMock { get; set; }
private Mock<IUserRepository> UserRepositoryMock { get; set; }
private Mock<IMapper> MapperMock { get; set; }
private PostService PostService { get; set; }
#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>())).Returns(Task.FromResult(true));
this.PostRepositoryMock.Setup(p => p.GetPostByCreatorAndTimeCreatedAsync(It.IsAny<Guid>(), It.IsAny<DateTime>())).Returns(Task.FromResult(post));
this.UserRepositoryMock.Setup(p => p.DoesUserExistAsync(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<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>())).Returns(Task.FromResult(false));
this.UserRepositoryMock.Setup(p => p.DoesUserExistAsync(It.IsAny<Guid>())).Returns(Task.FromResult(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
{
};
Post post = new Post
{
Message = MESSAGE,
};
Exception ex = Assert.ThrowsAsync<ArgumentException>(() => 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 = new Guid();
User creator = new User { Id = creatorId };
Post post = new Post
{
Message = MESSAGE,
Creator = creator
};
ReadPostServiceModel readPostServiceModel = new ReadPostServiceModel
{
Message = MESSAGE
};
User user = new User
{
Id = creatorId,
};
this.PostRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(post));
this.UserRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(user));
this.MapperMock.Setup(p => p.Map<ReadPostServiceModel>(It.IsAny<Post>())).Returns(readPostServiceModel);
ReadPostServiceModel result = await this.PostService.GetPostById(new Guid());
Assert.AreEqual(MESSAGE, result.Message);
}
[Test]
public void GetPostById_ThorwsException_WhenTheUserDoesNotExist()
{
const string EXCEPTION_MESSAGE = "The user does not exist!";
Guid creatorId = new Guid();
User creator = new User { Id = creatorId };
Post post = new Post
{
Message = MESSAGE,
Creator = creator
};
this.PostRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(post));
Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.PostService.GetPostById(new Guid()), "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 = new Guid();
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>())).Returns(Task.FromResult(user));
Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.PostService.GetPostById(new Guid()));
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>())).Returns(Task.FromResult(true));
this.PostRepositoryMock.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Post>())).Returns(Task.FromResult(true));
this.PostRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(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>())).Returns(Task.FromResult(true));
this.PostRepositoryMock.Setup(p => p.EditAsync(It.IsAny<Guid>(), It.IsAny<Post>())).Returns(Task.FromResult(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>())).Returns(Task.FromResult(false));
Exception ex = Assert.ThrowsAsync<ArgumentException>(() => 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 = new Guid();
Post post = new Post();
this.PostRepositoryMock.Setup(p => p.DoesPostExist(It.IsAny<Guid>())).Returns(Task.FromResult(true));
this.PostRepositoryMock.Setup(p => p.GetByIdAsync(It.IsAny<Guid>())).Returns(Task.FromResult(post));
this.PostRepositoryMock.Setup(p => p.DeleteAsync(It.IsAny<Post>())).Returns(Task.FromResult(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 = new Guid();
this.PostRepositoryMock.Setup(p => p.DoesPostExist(It.IsAny<Guid>())).Returns(Task.FromResult(false));
Exception ex = Assert.ThrowsAsync<ArgumentException>(() => this.PostService.DeletePost(id));
Assert.AreEqual(exceptionMessage, ex.Message, "Incorecct exception message");
}
#endregion
}
}
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