Question

当使用mockito对单元测试Spring mvc控制器时，如何注入dao层对象。在使用SpringJUnit4ClassRunner类时，它总是使用@Spy注释给出空指针异常。

示例代码：

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:**/evivecare-application-context-test.xml" })
@WithMockUser(username = "admin", roles={"ADMIN"})
@TestExecutionListeners({DependencyInjectionTestExecutionListener.class})
public class ControllerTest {

    private MockMvc mockMvc;
     @Mock
     private SessionFactory sessionFactory;
     @Mock
     private Session session;
    @InjectMocks
    private FilterController filterController = new FilterController();
    @Spy
    private FilterService filterService= new FilterServiceImpl();
    @Autowired
    private FilterDAO filterDAO;
    @Mock
    private OperatorService userService;
    @Mock
    private EviveSpeechFilterService eviveSpeechFilterService;
    private TestContextManager testContextManager;



    @Before
    public void setup() throws Exception {
        // Process mock annotations
        MockitoAnnotations.initMocks(this);

        // Setup Spring test in standalone mode
        this.mockMvc = MockMvcBuilders.standaloneSetup(filterController).build();
        testContextManager = new TestContextManager(getClass());
        testContextManager.prepareTestInstance(this);

        filterDAO= new FilterDAOImpl(sessionFactory);
        Mockito.doReturn(session).when(sessionFactory).getCurrentSession();
    }

@Test
    public void testController200() throws Exception{
        Mockito.when(filterService.renameList("123","sdfgh")).thenReturn(false);
        Mockito.when(filterDAO.renameList("123","sdfgh")).thenReturn(false);
        this.mockMvc.perform(org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post("/renameList")
                .sessionAttr("filterService", filterService)
                .sessionAttr("filterDAO", filterDAO)
                .param("listId", "1234567")
                .param("alternateName", "LIst Name"))
        .andExpect(org.springframework.test.web.servlet.result.MockMvcResultMatchers.status().isOk());
    }
}

在此测试用例中，filterService依次调用filterDAO，null pointer exception始终返回function validateForm() { debugger; var fields = ["surname", "name", "dob"] var i, l = fields.length; var fieldname; for (i = 0; i < l; i++) { fieldname = fields[i]; if (document.getElementsByName(fieldname)[0].value === "") { alert(fieldname + " can not be empty"); return false; } } return true; } function doit2() { if(document.getElementById('two').style.display == 'none'){ document.getElementById('two').style.display = 'block'; } else { if(validateForm()){ document.getElementById('two').style.display = 'none'; } } }。那么，我该怎么做才能解决这个问题呢？

Answer 1

FilterService不是托管bean，您可能需要在构造函数中注入dao，因为它不会在filterService中自动装配。

有关详细信息，请参阅此问题：Support for autowiring in a class not instantiated by spring (3)

Spring mvc unit test controller使用mockito

1 个答案: