public void GetSongsByAlbum()
{
const string album = "album";
ObservableCollection<Song> expectedSongs = new ObservableCollection<Song>();
SongRepository.Setup(r => r.GetByAlbum(album)).Returns(expectedSongs);
MusicService service = new MusicService(SongRepository.Object, MediaFileRepository.Object);
IList<Song> findMusics = service.GetByAlbum(album);
SongRepository.Verify(r => r.GetByAlbum(album), Times.Once());
Assert.AreEqual(expectedSongs, findMusics);
}
