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using System;
using System.Threading.Tasks;
using DevHive.Data.Models;
using DevHive.Data.Repositories;
using Microsoft.EntityFrameworkCore;
using NUnit.Framework;
namespace DevHive.Data.Tests
{
[TestFixture]
public class CommentRepositoryTests
{
private const string COMMENT_MESSAGE = "Comment message";
protected DevHiveContext Context { get; set; }
protected CommentRepository CommentRepository { get; set; }
#region Setups
[SetUp]
public void Setup()
{
var optionsBuilder = new DbContextOptionsBuilder<DevHiveContext>()
.UseInMemoryDatabase(databaseName: "DevHive_Test_Database");
this.Context = new DevHiveContext(optionsBuilder.Options);
CommentRepository = new CommentRepository(Context);
}
[TearDown]
public void TearDown()
{
this.Context.Database.EnsureDeleted();
}
#endregion
#region GetCommentByIssuerAndTimeCreatedAsync
[Test]
public async Task GetCommentByCreatorAndTimeCreatedAsync_ReturnsTheCorrectComment_IfItExists()
{
Comment comment = await this.AddEntity();
Comment resultComment = await this.CommentRepository.GetCommentByIssuerAndTimeCreatedAsync(comment.Creator.Id, comment.TimeCreated);
Assert.AreEqual(comment.Id, resultComment.Id, "GetCommentByIssuerAndTimeCreatedAsync does not return the corect comment when it exists");
}
[Test]
public async Task GetPostByCreatorAndTimeCreatedAsync_ReturnsNull_IfThePostDoesNotExist()
{
Comment comment = await this.AddEntity();
Comment resultComment = await this.CommentRepository.GetCommentByIssuerAndTimeCreatedAsync(Guid.Empty, DateTime.Now);
Assert.IsNull(resultComment, "GetCommentByIssuerAndTimeCreatedAsync does not return null when the comment does not exist");
}
#endregion
#region DoesCommentExist
[Test]
public async Task DoesCommentExist_ReturnsTrue_WhenTheCommentExists()
{
Comment comment = await this.AddEntity();
bool result = await this.CommentRepository.DoesCommentExist(comment.Id);
Assert.IsTrue(result, "DoesCommentExist does not return true whenm the Comment exists");
}
[Test]
public async Task DoesCommentExist_ReturnsFalse_WhenTheCommentDoesNotExist()
{
bool result = await this.CommentRepository.DoesCommentExist(Guid.Empty);
Assert.IsFalse(result, "DoesCommentExist does not return false whenm the Comment" +
" does not exist");
}
#endregion
#region HelperMethods
private async Task<Comment> AddEntity(string name = COMMENT_MESSAGE)
{
User creator = new User { Id = Guid.NewGuid() };
Comment comment = new Comment
{
Message = COMMENT_MESSAGE,
Creator = creator,
TimeCreated = DateTime.Now
};
this.Context.Comments.Add(comment);
await this.Context.SaveChangesAsync();
return comment;
}
#endregion
}
}
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