Question

我正在为我的班级做Junit考试。我班的源代码是：

@Autowired
private LanguageRepository languageRepository;

@ApiOperation(value = "Languages", notes = "Get Languages.")
@CrossOrigin
@RequestMapping(method = RequestMethod.GET, path = Constants.REST_LANGUAGES)
public List<Language> getLanguages(HttpServletRequest request)
        throws GlobalException, ServiceException, SoapException, RepositoryException {
    LOG.info("Call Rest method: getLanguages");

    List<Language> languages = languageRepository.getAllLanguages();

    return languages;
}

LanguageRepository还有一个名为LanguageService的Autowired类。

文本的源代码是：

@Mock
private LanguageRepository languageRepository;

@Before
public void initMocks() {
    MockitoAnnotations.initMocks(this);
}

@Test
public void exampleTest() throws GlobalException, ServiceException, SoapException, RepositoryException {
    Language language = new Language("id", "name", "code");
    List<Language> languageListGiven = new ArrayList<Language>();
    languageListGiven.add(language);

    HttpServletRequest request = Mockito.mock(HttpServletRequest.class);

    Mockito.when(languageRepository.getAllLanguages()).thenReturn(languageListGiven);

    // 2- act
    LanguageController languageController = new LanguageController();
    List<Language> languageListReturned = languageController.getLanguages(request);

    // 3- assert
    Assert.assertEquals(languageListGiven, languageListReturned);
}

但是当我调用存储库的方法时，我收到一个nullPointerException。

当我做“Mockito.when＆＃39;？

时，可以使用模拟工具来接收我想要的对象。”

谢谢！

Answer 1

您已为LanguageRepository创建了一个模拟，但您尚未将其注入控制器。您需要在控制器中为languageRepository创建一个setter方法，并在测试中使用它。

LanguageController languageController = new LanguageController(); languageController.setLanguageRepository(languageRepository);

模拟一个Autowired类，它也有自动装配的类

1 个答案: