java - Mockito:结合@Autowired和@Mock

Question

我在 Spring Web 模型- View - Controller (MVC) 框架应用程序中使用 Mockito(根据 MIT 许可证发布的 Java 开源测试框架)进行 junit 测试

我有这个测试:

@RunWith(MockitoJUnitRunner.class)
public class DeviceCatalogueControllerTest {


    @InjectMocks
    private DeviceCatalogueController controller;

    @InjectMocks
    protected SessionHelper sessionHelper;

    @Mock
    private MessageSource messageSource;

    @Mock
    protected CataloqueService cataloqueService;

    @Autowired
    protected ApplicationDao applicationDao;

    @Before
    public void setUpTest() {
        request = new MockHttpServletRequest();
        response = new MockHttpServletResponse();
    }

    @Test
    public void testInitFormGet() throws Exception {

        System.out.println  ("SessionHelper sessionHelper --> " + sessionHelper);

        //controller.initFormGet(searchForm, localeParam, request, response, model, locale)
        controller.initFormGet(null, DEFAULT_LOCALE, request, response, null, new Locale(DEFAULT_LOCALE));
        }

但是运行测试时applicationDao为null

Answer 1

您的测试类完全不知道 Spring 。使用Spring在单元测试中，您必须使用正确的注释 @RunWith(SpringJUnit4ClassRunner.class)而不是 @RunWith(MockitoJUnitRunner.class)你现在正在使用。

然后在 @Before方法你可以初始化你的Mockito通过调用 MockitoAnnotations.initMocks(this); 进行模拟

您的测试类可以重新编码为:

@ContextConfiguration(locations = {"classpath:/application-context.xml"})
@RunWith(SpringJUnit4ClassRunner.class)
public class DeviceCatalogueControllerTest {


    @InjectMocks
    private DeviceCatalogueController controller;

    @InjectMocks
    protected SessionHelper sessionHelper;

    @Mock
    private MessageSource messageSource;

    @Mock
    protected CataloqueService cataloqueService;

    @Autowired
    protected ApplicationDao applicationDao;

    @Before
    public void setUpTest() {
        MockitoAnnotations.initMocks(this);
        request = new MockHttpServletRequest();
        response = new MockHttpServletResponse();
    }

    @Test
    public void testInitFormGet() throws Exception {

        System.out.println("SessionHelper sessionHelper --> " + sessionHelper);

        //controller.initFormGet(searchForm, localeParam, request, response, model, locale)
        controller.initFormGet(null, DEFAULT_LOCALE, request, response, null, new Locale(DEFAULT_LOCALE));
    }
}

注意:为 application-context.xml 使用正确的 xml 路径在@ContextConfiguration(locations = {"classpath:/application-context.xml"})