### Question:
AudioPlayer implements MediaPlayerControl, OnPreparedListener { @Override public void start() { mediaPlayer.start(); } @Inject  AudioPlayer(MediaPlayer mediaPlayer, EventBus eventBus, EpisodeFile episodeFile); MediaPlayer play(Episode episode); void release(); @Override void start(); @Override void pause(); @Override int getDuration(); @Override int getCurrentPosition(); @Override void seekTo(int pos); @Override boolean isPlaying(); @Override int getBufferPercentage(); @Override boolean canPause(); @Override boolean canSeekBackward(); @Override boolean canSeekForward(); @Override int getAudioSessionId(); @Override void onPrepared(MediaPlayer mediaPlayer);  }### Answer:
@Test public void itStartsMediaPlayer() throws IOException { audioPlayer.start(); verify(mediaPlayerMock).start(); }