public void Delete_GivenSongWasNotDeleted_Should_ReturnNotFound()
        {
            _songService.Delete(Arg.Any <Guid>()).Returns(false);

            var actionResult = _songsController.Delete(Guid.NewGuid());

            Assert.IsType <NotFoundResult>(actionResult.Result);
        }
        public IActionResult RemoveSong(int id)
        {
            Song song = (from s in repository.GetAllSongs()
                         where s.SongID == id
                         select s).FirstOrDefault <Song>();

            repository.Delete(song);
            return(RedirectToAction("AllSongs", "Music"));
        }