@Test public void testNotifyBackStackEntryChangeWithoutRegisteredListeners() {

	// Arrange:
	final FragmentActivity activity = Robolectric.buildActivity(TestCompatActivity.class).create().start().resume().get();
	final FragmentController controller = new FragmentController(activity.getSupportFragmentManager());
	// Act:
	// Only ensure that notifying without registered listeners does not cause any troubles.
	controller.notifyBackStackEntryChange(mock(FragmentManager.BackStackEntry.class), false);
}