### Question:
DefaultMediaClock implements MediaClock { @Override public PlaybackParameters getPlaybackParameters() { return rendererClock != null ? rendererClock.getPlaybackParameters() : standaloneMediaClock.getPlaybackParameters(); } DefaultMediaClock(PlaybackParameterListener listener, Clock clock); void start(); void stop(); void resetPosition(long positionUs); void onRendererEnabled(Renderer renderer); void onRendererDisabled(Renderer renderer); long syncAndGetPositionUs(); @Override long getPositionUs(); @Override PlaybackParameters setPlaybackParameters(PlaybackParameters playbackParameters); @Override PlaybackParameters getPlaybackParameters();  }### Answer:
@Test public void standaloneGetPlaybackParameters_initializedWithDefaultPlaybackParameters() { assertThat(mediaClock.getPlaybackParameters()).isEqualTo(PlaybackParameters.DEFAULT); }