@Config(reportSdk = VERSION_CODES.ICE_CREAM_SANDWICH)
@Test
public void fetchAdForUrl_atLeastIcs_shouldExecuteUsingAnExecutor() throws Exception {

    AdFetchTaskFactory.setInstance(new TestAdFetchTaskFactory());
    AdFetchTask adFetchTask = TestAdFetchTaskFactory.getSingletonMock();
    subject.fetchAdForUrl("some url");
    verify(adFetchTask).executeOnExecutor(any(Executor.class), eq("some url"));
    verify(adFetchTask, never()).execute(anyString());
}