Robolectric shadow for EMVideoView

ShadowEMVideoView.java

@Implements(com.devbrackets.android.exomedia.EMVideoView.class)
public class ShadowEMVideoView extends ShadowRelativeLayout {
    public static final int STOP = 0;
    public static final int START = 1;
    public static final int SUSPEND = 2;
    public static final int PAUSE = 3;

    private int currentState = -1;

    private int prevState;
    private int currentPosition;

    @Implementation
    public void start() {
        savePrevState();
        currentState = ShadowEMVideoView.START;
    }

    @Implementation
    public void stopPlayback() {
        savePrevState();
        currentState = ShadowEMVideoView.STOP;
    }

    @Implementation
    public void suspend() {
        savePrevState();
        currentState = ShadowEMVideoView.SUSPEND;
    }

    @Implementation
    public void pause() {
        savePrevState();
        currentState = ShadowEMVideoView.PAUSE;
    }

    @Implementation
    public boolean isPlaying() {
        return (currentState == ShadowEMVideoView.START);
    }


    @Implementation
    public void seekTo(int msec) {
        currentPosition = msec;
    }

    @Implementation
    public long getCurrentPosition() {
        return currentPosition;
    }
    
    /**
     * Non-Android accessor.
     */
    private void savePrevState() {
        prevState = currentState;
    }
}

SingleVideoReviewFragmentTest.java

@RunWith(RobolectricGradleTestRunner.class)
@Config(constants = BuildConfig.class, sdk = 21, shadows = {ShadowEMVideoView.class})
public class SingleVideoReviewFragmentTest {

    private HPTVideo video;
    private SingleVideoReviewFragment f;
    private int score;
    private int possibleScore;

    @Before
    public void setUp() throws Exception {
        score = 4;
        possibleScore = 5;
        video = VideoSelector.getHptVideoSet(RuntimeEnvironment.application).getDataSet().videoList.get(0);
        f = SingleVideoReviewFragment.newInstance(score, possibleScore, video);
        startFragment();
    }

    private void startFragment() {
        FragmentActivity activity = Robolectric.setupActivity(VideoActivity.class);
        activity.getSupportFragmentManager()
                .beginTransaction().add(R.id.container, f, SingleVideoReviewFragment.TAG).commit();
    }

    @Test
    public void hasJumpToHazardButton() throws Exception {
        View btn_jumpToHazard = f.getView().findViewById(R.id.button_jump_to_hazard);
        assertNotNull(btn_jumpToHazard);
        assertTrue(btn_jumpToHazard.getVisibility() == View.VISIBLE);
    }

    @Test
    public void jumpToHazardButton_goesToHazard() throws Exception {
        EMVideoView videoView = (EMVideoView) f.getView().findViewById(R.id.video);
        ShadowEMVideoView shadowVideoView = (ShadowEMVideoView) ShadowExtractor.extract(videoView);
        videoView.start();
        assertTrue(shadowVideoView.isPlaying());
        View btn_jumpToHazard = f.getView().findViewById(R.id.button_jump_to_hazard);
        btn_jumpToHazard.performClick();
        assertEquals("Button doesn't jump to hazard", video.hazardWindowList.get(0).openingTime / HPTVideo.UNIT_100_NANO_TO_MILLISECOND, shadowVideoView.getCurrentPosition());
    }
}