MediaPlayer { public Audios Audios() { if (audios == null) { audios = new Audios(this); } return audios; } MediaPlayer(Tracker tracker); Media Media(); LiveMedia LiveMedia(); Videos Videos(); Audios Audios(); LiveVideos LiveVideos(); LiveAudios LiveAudios(); int getPlayerId(); MediaPlayer setPlayerId(int playerId);  }
@Test public void getAudiosTest() { Audios audios = mediaPlayer.Audios(); assertNotNull(mediaPlayer.Audios()); assertSame(audios, mediaPlayer.Audios()); }