public class NavigationMainActivityTest {
    private static final String PACKAGE_NAME = "org.stayhigh.bde";

    @Rule
    public IntentsTestRule<MainActivity> mIntentsRule = new IntentsTestRule<>(MainActivity.class);

    @Test
    public void moveToParty() {
        onView(withId(R.id.imageButtonParty))
                .perform(click());

        intended(allOf(
                hasComponent(hasShortClassName(".activity.PartiesActivity")),
                toPackage(PACKAGE_NAME)));
    }