How to use

android.app.Instrumentation$ActivityMonitor

constructor

@Before
public void initActivity() {
  instrumentation = InstrumentationRegistry.getInstrumentation();
  Instrumentation.ActivityMonitor monitor = new Instrumentation.ActivityMonitor(TestActivity.class.getName(), null, false);
  instrumentation.addMonitor(monitor);
  Intent intent = new Intent(instrumentation.getTargetContext(), TestActivity.class);
  intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  instrumentation.startActivitySync(intent);
  activity = instrumentation.waitForMonitor(monitor);
  assertNotNull(activity);
}

@Test
public void testForceShow() {
  ActivityMonitor monitor = new ActivityMonitor(DefaultWelcomeActivity.class.getName(), null, false);
  instrumentation.addMonitor(monitor);
  helper.forceShow();
  Activity welcomeActivity = instrumentation.waitForMonitor(monitor);
  assertNotNull(welcomeActivity);
}

@Override
public void initActivity() {
  super.initActivity();
  welcomeMonitor = new Instrumentation.ActivityMonitor(DefaultWelcomeActivity.class.getName(), null, false);
  instrumentation.addMonitor(welcomeMonitor);
  new WelcomeHelper(activity, DefaultWelcomeActivity.class).forceShow();
  welcomeActivity = (WelcomeActivity) instrumentation.waitForMonitor(welcomeMonitor);
}

 private Instrumentation.ActivityMonitor mBrowserActivityMonitor;

protected void setUp() throws Exception {
  super.setUp();

  mBrowserActivityMonitor = new Instrumentation.ActivityMonitor(Browser.class.getName(), null, false);
  getInstrumentation().addMonitor(mBrowserActivityMonitor);
  //...
}


public void testOpen()
{
  //...

  Activity activity = mBrowserActivityMonitor.waitForActivityWithTimeout(5 * 1000);
  assertNotNull("Activity was not started", activity);

  //...

}

@SuppressWarnings("unchecked")
public static <T extends Activity> T monitorActivity(@NonNull Class<T> activityClass, int timeOut, @NonNull Runnable runnable) {
  Instrumentation.ActivityMonitor monitor = new Instrumentation.ActivityMonitor(activityClass.getCanonicalName(), null, false);
  try {
    InstrumentationRegistry.getInstrumentation().addMonitor(monitor);
    runnable.run();
    return (T) monitor.waitForActivityWithTimeout(timeOut);
  } finally {
    InstrumentationRegistry.getInstrumentation().removeMonitor(monitor);
  }
}

@Test
public void testShow() {
  ActivityMonitor monitor = new ActivityMonitor(DefaultWelcomeActivity.class.getName(), null, false);
  instrumentation.addMonitor(monitor);
  String key = WelcomeUtils.getKey(DefaultWelcomeActivity.class);
  WelcomeSharedPreferencesHelper.storeWelcomeCompleted(activity, key);
  assertFalse(helper.show(null));
  assertFalse(helper.show(new Bundle()));
  WelcomeSharedPreferencesHelper.removeWelcomeCompleted(activity, key);
  assertTrue(helper.show(null));
  assertFalse(helper.show(null));
  Activity welcomeActivity = instrumentation.waitForMonitor(monitor);
  assertNotNull(welcomeActivity);
  WelcomeSharedPreferencesHelper.removeWelcomeCompleted(activity, key);
  Bundle state = new Bundle();
  helper.onSaveInstanceState(state);
  assertFalse(helper.show(state));
}