Blog.Logic.Core.Tests.PostsLogicTest.ShouldGetPostByIdWithUserBackground C# (CSharp) Method

        public void ShouldGetPostByIdWithUserBackground()
        {
            var post = new Post
            {
                PostId = 1,
                PostLikes = _postLikes.Where(a => a.PostId == 1).ToList(),
                PostContents = _postContents.Where(a => a.PostId == 1).ToList(),
                Tags = _tags.Where(a => a.TagId != 3).ToList(),
                PostTitle = "Foo",
                PostMessage = "Lorem Ipsum Dolor",
                UserId = 1,
                User = new User { UserId = 1, UserName = "Lorem", BackgroundId = 1 }
            };

            _postRepository = new Mock<IPostRepository>();
            _postRepository.Setup(a => a.Find(It.IsAny<Expression<Func<Post, bool>>>(),
                It.IsAny<Func<IQueryable<Post>, IOrderedQueryable<Post>>>(), It.IsAny<string>()))
                .Returns(new List<Post> { post });

            var postContents = _postContents.Where(a => a.PostId == 1).ToList();
            _postContentRepository = new Mock<IPostContentRepository>();
            _postContentRepository.Setup(a => a.Find(It.IsAny<Expression<Func<PostContent, bool>>>(), true))
                .Returns(postContents);

            _mediaRepository = new Mock<IMediaRepository>();
            _mediaRepository.Setup(a => a.Find(It.IsAny<Expression<Func<Media, bool>>>(), false))
                .Returns(new List<Media> { new Media { MediaId = 1 } });

            _postsLogic = new PostsLogic(_postRepository.Object, _postContentRepository.Object,
                _mediaRepository.Object);

            var result = _postsLogic.GetPost(1);

            Assert.NotNull(result);
            Assert.NotNull(result.User.Background);
            Assert.AreEqual(1, result.Id);
        }