使用@Mock时方法POST的Mockito错误？

Question

我有一个类似于这个的简单带注释的控制器：

@RequestMapping(value = { "/search" }, method = RequestMethod.POST)
public String searchForm(@Valid Account account, ModelMap model, HttpServletRequest request) {
    //do something

    return "app";
}

我想用这样的单元测试来测试它：

private List<Account> listAccount = new ArrayList<Account>();
@Before
public void prepairUp() {

    // //// // ===============SETUP FOR MOCK========================
    MockitoAnnotations.initMocks(this);

    mockMvc = MockMvcBuilders.standaloneSetup(accountController).build();
}
@Test
public void tesControllerSearchForm() throws Exception {

    ModelMap modelMap = mock(ModelMap.class);

    Account account = mock(Account.class);
    HttpServletRequest request = mock(HttpServletRequest.class);
    final String review = accountController.searchForm(account, modelMap , request);

    when(accountService.findAllAccount()).thenReturn(listAccount);


    mockMvc.perform(MockMvcRequestBuilders.post("/search")).andExpect(MockMvcResultMatchers.status().isOk())
            .andExpect(MockMvcResultMatchers.model().attribute("listAccounts", listAccount))
            .andExpect(MockMvcResultMatchers.view().name(review));


}

它不起作用，不失败，不正确，错误行

final String review = accountController.searchForm(account, model, request);

Answer 1

当您模拟控制器时，您必须手动设置通常由 spring 注入控制器的 bean。这就是在控制器中抛出 NullPointer 的原因。

修改你的 prepairUp 如下：

[Some Annotations you already have...]
public class ControllerTest {

    @Inject
    private AccountService accountService;

    @PostConstruct
    public void prepairUp() {

        // //// // ===============SETUP FOR MOCK========================
        MockitoAnnotations.initMocks(this);
        AccountController accountController = new AccountController();
        ReflectionTestUtils.setField(accountController, "accountService", accountService);
        mockMvc = MockMvcBuilders.standaloneSetup(accountController).build();
    }

    @Test
    public void tesControllerSearchForm() {
        ...
    }

    ....
}

您只需要设置一次，因此只需将您的@Before 更改为@PostConstruct。