public async void TestCreateAlbumRatingAsync() { var request = new AlbumRatingDto { AlbumId = Guid.Parse("0f078d0e-6602-4375-a088-ab8d00facdd1"), RatingTypeId = Guid.Parse("5befa4aa-06fd-4390-a2f5-a54600d4e3b3") }; var data = await _albumsController.CreateAlbumRatingAsync(request); Assert.IsAssignableFrom <AlbumRatingDto>(data); bool IsValid = data.ErrorMessage == null ? true : false; Assert.True(IsValid); }