@Test
public void verify_create_paged_list_called_only_once_in_success() throws InterruptedException {

	when(usecase.getNewsPagedList()).thenReturn(Observable.just(pagedList));
	verify(usecase, times(0)).getNewsPagedList();
	viewModel.createNewsPagedList();
	verify(usecase, times(1)).getNewsPagedList();
	viewModel.createNewsPagedList();
	verify(usecase, times(1)).getNewsPagedList();
}