TestTapGalleryButtonAndReturnOK.Java

@Test
public void testTapGalleryButtonAndReturnOK() {
    // Stub the Uri returned by the gallery intent.
    Uri uri = Uri.parse("uri_string");

    // Build a result to return when the activity is launched.
    Intent resultData = new Intent();
    resultData.setData(uri);
    Instrumentation.ActivityResult result =
                new Instrumentation.ActivityResult(Activity.RESULT_OK, resultData);

    // Set up result stubbing when an intent sent to "choose photo" is seen.
    intending(toPackage("com.android.gallery")).respondWith(result);

    onView(withId(R.id.home_gallery_button)).check(matches(withText("Gallery")));
    onView(withId(R.id.home_gallery_button)).perform(click());

    // Check image processor is reset.
    verify(imageProcessor).resetOriginalImage();

    // New activity should be launched
    intended(hasComponent(ImageEditingActivity.class.getName()));
}