3_Espresso_background_synch_boilerplate_code

public class AppNavigationTest {

    @Rule
    public ActivityTestRule<NewsActivity> activityTestRule =
            new ActivityTestRule<>(NewsActivity.class);

    @Before
    public void registerIdlingResource() {
        // let espresso know to synchronize with background tasks
        IdlingRegistry.getInstance().register(EspressoTestingIdlingResource.getIdlingResource());
    }

    @After
    public void unregisterIdlingResource() {
        IdlingRegistry.getInstance().unregister(EspressoTestingIdlingResource.getIdlingResource());
    }


    @Test
    public void verifyDetailsIntent() {
        // check views are displayed or not
        onView(withId(R.id.swipe_msg_tv)).check(matches(isDisplayed()));
        // perform swipe down gesture to initiate network request
        onView(withId(R.id.swipe_container)).perform(swipeDown());
        // make sure the empty message is not displayed anymore
        onView(withId(R.id.swipe_msg_tv)).check(matches(not(isDisplayed())));
        // make sure list is visible 
        onView(withId(R.id.news_frag_recycler_list)).check(matches(isDisplayed()));
        // perform click on third item in the list
        onView(withId(R.id.news_frag_recycler_list))
                .perform(RecyclerViewActions.actionOnItemAtPosition(3, click()));

        // setup code to imitate the action of opening browser
        Intents.init();
        Matcher<Intent> expectedIntent = hasAction(Intent.ACTION_VIEW);
        intending(expectedIntent).respondWith(new Instrumentation.ActivityResult(0, null));

        onView(withText(R.string.details_story_link)).perform(click());

        intended(expectedIntent);
        Intents.release();

    }

}