public PlaylistServiceBuilder()
 {
     _dateTimeWrapper    = Substitute.For <IDateTimeWrapper>();
     _mapper             = Substitute.For <IMapper>();
     _playlistRepository = Substitute.For <IPlaylistEntriesRepository>();
     _audioRepository    = Substitute.For <IAudioEntriesRepository>();
 }
 public PlaylistServiceImpl(
     IDateTimeWrapper dateTimeWrapper,
     IMapper mapper,
     IPlaylistEntriesRepository playlistRepository,
     IAudioEntriesRepository audioRepository)
 {
     _dateTimeWrapper    = dateTimeWrapper;
     _mapper             = mapper;
     _playlistRepository = playlistRepository;
     _audioRepository    = audioRepository;
 }
 public PlaylistServiceBuilder WithPlaylistRepository(IPlaylistEntriesRepository playlistEntriesRepository)
 {
     _playlistRepository = playlistEntriesRepository;
     return(this);
 }