@Test
public void itBroadcastsEventThatAudioIsPlaying() throws IOException {

  CustomBroadcastReceiver customBroadcastReceiver = new CustomBroadcastReceiver(eventBus);
  assertThat(customBroadcastReceiver.isMessageReceived(), is(false));
  audioPlayer.onPrepared(mediaPlayerMock);
  assertThat(customBroadcastReceiver.isMessageReceived(), is(true));
}