在测试期间抛出 NullPointerException。我尝试调试它,唯一解决的问题是 eventOptional 始终为 null。就像 Mockito.when().thenReturn() 不起作用一样。有人可以帮忙吗?这是我用于测试服务和测试本身的代码:
@Service
public class EventService {
@Autowired
public EventService(EventRepository eventRepository) {
this.eventRepository = eventRepository;
}
//...
public void updateEvent(EventDTO eventDTO) {
Optional<Event> eventOptional = eventRepository.findOneById(eventDTO.getId());
eventOptional.orElseThrow(() -> new BadRequestException(EVENT_NOT_FOUND));
//...
}
}
和测试类:
@RunWith(MockitoJUnitRunner.class)
public class EventServiceTest {
@Mock
private EventRepository eventRepository;
@InjectMocks
private EventService eventService;
private Event sampleEventFromDb;
@Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
}
@Test
public void shouldUpdateEventTestAndWithProperTime() throws Exception {
EventDTO eventDTOMock = Mockito.mock(EventDTO.class);
sampleEventFromDb = Event.builder()
.name("name")
.startDateTime(LocalDateTime.now())
.placeName("place")
.description("description")
.publicEvent(true)
.owner(new User())
.build();
Mockito.when(eventRepository.findOneById(anyString())).thenReturn(Optional.of(sampleEventFromDb));
Mockito.when(eventDTOMock.getId()).thenReturn("1");
eventService.updateEvent(eventDTOMock); //NullPointerException
//...
}
}
最佳答案
我遇到了同样的错误,在尝试了很多方法之后,我通过将 anyString() 方法替换为 any() 来修复它
试试这个:
Mockito.when(eventRepository.findOneById(any())).thenReturn(Optional.of(sampleEventFromDb));
关于java - Mockito.when().thenReturn() 不起作用或返回 null,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/37011328/