@Test
public void test_download_fail() {

    HttpClientDownloader httpClientDownloader = new HttpClientDownloader();
    Task task = Site.me().setDomain("localhost").setCycleRetryTimes(5).toTask();
    Request request = new Request(PAGE_ALWAYS_NOT_EXISTS);
    Page page = httpClientDownloader.download(request, task);
    assertThat(page.isDownloadSuccess()).isFalse();
}