我在演示者中使用以下方法。
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() == 401) {
view.handleUnauthorisedError();
} else {
view.onNoteNotAdded();
}
}, view::handleError);
disposables.add(disposable);
}
现在,我要使用以下课程对其进行单元测试:
@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(1)
.build();
// When
Mockito.when(userRepository.getLoggedInUser()).thenReturn(Single.just(user));
Note note = presenter.getNote("Note body", user);
Response<Note> response = Response.success(200, note);
Mockito.when(customersRepository.addNote(1, note)).thenReturn(Single.just(response));
presenter.addNote(1, "Note body");
// Then
Mockito.verify(view).onNoteAdded();
}
}
但是它失败,但出现以下异常:
想要但不被调用: view.onNoteAdded(); -> com.anstar.presentation.notes.NoteDetailsPresenterTest.shouldAddNote(NoteDetailsPresenterTest.java:56)
但是,此模拟还有其他交互作用: view.handleError( java.lang.NullPointerException:映射器返回的单个null ); ->在io.reactivex.internal.observers.ConsumerSingleObserver.onError(ConsumerSingleObserver.java:46)
我该如何解决?是有关map和flatMap转换的问题吗?
答案 0 :(得分:1)
似乎无法读取该模拟。尝试将any()
放在参数上:
代替此:
Mockito.when(customersRepository.addNote(1, note)).thenReturn(Single.just(response));
使用any()
:
Mockito.when(customersRepository.addNote(anyInt(), any(Note.class))).thenReturn(Single.just(response));
为什么模拟无法阅读?
如果参数是原始数据类型(字符串,整数,双精度型等),则只需传递确切的参数(在您的情况下,第一个参数为整数1),然后将读取模拟。但是,在对象(对于您来说,Note
对象)中,即使您具有相同的确切参数,它们也将具有不同的hashCode()
,因此无法读取该模拟。解决方案是接受any()
参数,该参数指定类类型:any(Note.class)
。