How to use

setStoryId

method

in

io.hefuyi.zhihudaily.domain.FetchStoryDetailUsecase

  @Override
  public void refresh(String storyId) {
    mUsecase.setStoryId(storyId);
    mSubscription = mUsecase.execute()
        .subscribeOn(Schedulers.io())
        .onErrorReturn(new Func1<Throwable, Story>() {
          @Override
          public Story call(Throwable throwable) {
            mView.hideProgressBar();
            mView.showError();
            return null;
          }
        })
        .subscribe(new Action1<Story>() {
          @Override
          public void call(Story story) {
            if (story != null) {
              mView.hideProgressBar();
              mView.showStory(story);
            }

          }
        });
  }
}

  @Test
  public void testRefreshError() {
    String storyId = "";
    when(mUsecase.execute()).thenReturn(Observable.<Story>error(new Throwable()));
    mPresenter.refresh(storyId);
    verify(mUsecase).setStoryId(storyId);
    verify(mView).hideProgressBar();
    verify(mView).showError();
  }
}

@Test
public void testRefresh() {
  String storyId = "";
  Story fakeStory = new Story();
  when(mUsecase.execute()).thenReturn(Observable.just(fakeStory));
  mPresenter.refresh(storyId);
  verify(mUsecase).setStoryId(storyId);
  verify(mView).hideProgressBar();
  verify(mView).showStory(fakeStory);
}

@Test
public void testFetchStoryDetailUsecase() {
  FetchLatestDailyStoriesUsecase fetchLatestDailyStoriesUsecase = new FetchLatestDailyStoriesUsecase(TestUtils.getRepository());
  TestSubscriber<DailyStories> dailyStoriesTestSubscriber = new TestSubscriber<>();
  fetchLatestDailyStoriesUsecase.execute().subscribe(dailyStoriesTestSubscriber);
  String storyId = dailyStoriesTestSubscriber.getOnNextEvents().get(0).getStories().get(0).getId();
  FetchStoryDetailUsecase fetchStoryDetailUsecase = new FetchStoryDetailUsecase(TestUtils.getRepository());
  fetchStoryDetailUsecase.setStoryId(storyId);
  TestSubscriber<Story> storyTestSubscriber = new TestSubscriber<>();
  fetchStoryDetailUsecase.execute().subscribe(storyTestSubscriber);
  storyTestSubscriber.assertNoErrors();
  storyTestSubscriber.assertValueCount(1);
}