@Test public void testNotifyLoadingStarted() {

	// Arrange:
	final WebFragment.OnWebContentLoadingListener mockListener = mock(WebFragment.OnWebContentLoadingListener.class);
	final WebFragment fragment = new WebFragment();
	fragment.setOnWebContentLoadingListener(mockListener);
	// Act:
	fragment.notifyLoadingStarted("test_url");
	// Assert:
	verify(mockListener).onLoadingStarted("test_url");
	verifyNoMoreInteractions(mockListener);
}