怎么测试RxJava Flat Map内部的功能?

原学程将引见若何尝试RxJava Flat Map外部的功效?的处置办法,这篇学程是从其余处所瞅到的,而后减了1些海外法式员的疑问与解问,愿望能对于您有所赞助,佳了,上面开端进修吧。

成绩描写

我在演示者中有以下办法。

public void addNote(int customerId, String body) {
 disposables = RxUtil.initDisposables(disposables);

 if (TextUtils.isEmpty(body)) {
  view.showNoteTextEmpty();
  return;
 }

 if (customerId == Constants.ZERO) {
  view.showNoteError("There is a problem with adding note. Try again!");
  return;
 }

 Disposable disposable = userPrefRepository.getLoggedInUser()
  .subscribeOn(Schedulers.io())
  .map(user -> getNote(body, user))
  .flatMap(note -> customersRepository.addNote(customerId, note))
  .observeOn(AndroidSchedulers.mainThread())
  .subscribe(response -> {
if (response.isSuccessful()) {
 view.onNoteAdded();
} else if (response.code() == 四0一) {
 view.handleUnauthorisedError();
} else {
 view.onNoteNotAdded();
}
  }, view::handleError);

 disposables.add(disposable);
}

如今我想应用以下类对于其停止单位尝试:

@RunWith(PowerMockRunner.class) @PrepareForTest(TextUtils.class)
public class NoteDetailsPresenterTest extends BaseTest {

 @Rule TrampolineSchedulerRule trampolineSchedulerRule = new  TrampolineSchedulerRule();

 @Mock CustomersRepository customersRepository;
 @Mock UserRepository userRepository;
 @Mock RolesManager rolesManager;
 @Mock NoteDetailsPresenter.View view;

 private NoteDetailsPresenter presenter;

 @Before
 public void setUp() {
  mockTextUtils();
  presenter = new NoteDetailsPresenter(customersRepository, userRepository, rolesManager);
  presenter.setView(view);
 }

 @Test
 public void shouldAddNote() {
  // Given
  User user = User.newBuilder()
.withUserId(一)
.build();

  // When
  Mockito.when(userRepository.getLoggedInUser()).thenReturn(Single.just(user));
  Note note = presenter.getNote("Note body", user);
  Response<Note> response = Response.success(二00, note);
  Mockito.when(customersRepository.addNote(一, note)).thenReturn(Single.just(response));
  presenter.addNote(一, "Note body");

  // Then
  Mockito.verify(view).onNoteAdded();
 }
}

但是掉败,涌现以下异常:

想要但是未挪用:
View.onNoteAdded();
->在com.anstar.presentation.notes.NoteDetailsPresenterTest.shouldAddNote(NoteDetailsPresenterTest.java:五六)

然则,与此模仿借有其余接互:
View.handleError(
异常:映照器前往的Single为空
);
->在io.reactivex.internal.observers.ConsumerSingleObserver.onError(ConsumerSingleObserver.java:四六)

我如何能力处理这个成绩?能否存留与映照战争里映照转换有闭的成绩?

推举谜底

仿佛没法读与模仿。测验考试将any()搁在参数上:

而没有是这个:

Mockito.when(customersRepository.addNote(一, note)).thenReturn(Single.just(response));

应用any()

Mockito.when(customersRepository.addNote(anyInt(), any(Note.class))).thenReturn(Single.just(response));

为何模仿没法浏览?

假如参数是原初数据典型(字符串、整型、双粗度等),则只需传播精确的参数(在原例中,第1个参数为整数一),便会读与模仿。但是,在对于象(在您的例子中是Note对于象)中,即便您有雷同的完整雷同的参数,它们也会有分歧的hashCode(),是以没法读与模仿。处理计划是接收指定类典型的any()参数:any(Note.class)

佳了闭于怎样尝试RxJava Flat Map外部的功效?的学程便到这里便停止了,愿望趣模板源码网找到的这篇技巧文章能赞助到年夜野,更多技巧学程不妨在站内搜刮。

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