public async Task EFRepository_Update_Blog_Should_Update_Posts_But_Not_User() { try { var site = new WebSite(); site.Url = "http://msdn.dotnet.com"; site.Posts = new List <Post>(); site.Posts.Add(new Post { Content = "test content", WebSite = site, QuickUrl = "http://msdn.dotnet.com/test", }); var user = new User { Name = "toto", LastName = "titi" }; user.Posts = new List <Post>(); user.Posts.Add(site.Posts.First()); user.Comments = new List <Comment>(); user.Comments.Add(new Comment("test comment", user, site.Posts.First())); site.Posts.First().Writer = user; using (var repo = new TestBlogEFRepository()) { repo.MarkForInsert(site); await repo.SaveAsync().ConfigureAwait(false); } WebSite dbSite = null; using (var repo = new TestBlogEFRepository()) { dbSite = repo.GetWithPostAndComment(); } dbSite.Should().NotBeNull(); var post = dbSite.Posts.First(); post.QuickUrl += "2"; post.Writer.LastName += "2"; post.Writer.Name += "2"; post.Writer.Comments.First().Value += "2"; using (var repo = new TestBlogEFRepository()) { repo.MarkForUpdate(dbSite); await repo.SaveAsync().ConfigureAwait(false); } using (var repo = new TestBlogEFRepository()) { dbSite = repo.GetWithPostAndComment(); dbSite.Should().NotBeNull(); post = dbSite.Posts.First(); post.QuickUrl.Should().Be("http://msdn.dotnet.com/test2"); post.Writer.Comments.First().Value.Should().Be("test comment2"); post.Writer.LastName.Should().Be("titi"); post.Writer.Name.Should().Be("toto"); } } finally { DeleteAll(); } }