def METHOD_NAME():
    assert DeviceState.Idle == playstate(PLAY_STATE_IDLE)
    assert DeviceState.Loading == playstate(PLAY_STATE_LOADING)
    assert DeviceState.Stopped == playstate(PLAY_STATE_STOPPED)
    assert DeviceState.Paused == playstate(PLAY_STATE_PAUSED)
    assert DeviceState.Playing == playstate(PLAY_STATE_PLAYING)
    assert DeviceState.Seeking == playstate(PLAY_STATE_FORWARD)
    assert DeviceState.Seeking == playstate(PLAY_STATE_BACKWARD)