EspressoGesturesTest.java

 @Test
    public void parallaxToolbarTest() {
        //Go to the screen to perform the swipe action
        
        //Verify that image is indeed collapsed
        onView(withId(R.id.appbarLayout)).check(matches(withContentDescription(expandedImageContentDescription)));
     
        //perform is sequential so click and swipeUp = drag up gesture
        onView(withId(R.id.appbarLayout)).perform(click(), swipeUp());

        //We can't be really sure if the swiping has finished by the time we come to this point on all devices (slow)
        //so either a collaped or collapsing state passes the test
        onView(withId(R.id.appbarLayout).check(matches(anyOf(
                withContentDescription(R.string.cd_image_collapsed), withContentDescription(R.string.cd_image_collapsing))));
    }