Spring mvc 带注释控制器的Junit测试

如何在控制器中测试以下方法

@RequestMapping(method = RequestMethod.POST)
    public String register(@Valid User user, BindingResult result) {

        if (result.hasErrors()) {
            return "users/registration";
        }

        // create user
        service.create(user);

        return "redirect:/";
    }

如何测试@Valid和BindingResult

public void testRegister() {
        try {
        request.setMethod("POST");
        request.setRequestURI("/users");
            request.setParameter("email", "bla@gmail.com");
        request.setParameter("prename", "Cyril");
        request.setParameter("surname", "bla");
        request.setParameter("password", "123");
        request.setParameter("repeat", "123");
        request.setParameter("birthdate", "2000-01-01");
        request.setParameter("city", "Baden");


            ModelAndView mAv = adapter.handle(request, response, usersController);

            assertEquals("redirect:/", mAv.getViewName());
        } catch (Exception e) {
            fail();
        }
    }

---

对于

@Valid

注释，这超出了单元测试的范围。您可以相信Spring框架将为您执行验证，并适当地设置

BindingResult

因此，实际上，您只需要覆盖

if

检查

结果.hasErrors（）

——为此，您应该模拟

绑定结果

；以下是如何使用：

---

我还发现，使用（特别是Eclipse插件）直观地确认单元测试覆盖了每一行和分支，这是非常好的

但是如果我需要测试@Valid注解？有办法吗？

...
@Mock
private BindingResult mockBindingResult

@Before
public void setupTest() {
    MockitoAnnotations.initMocks(this);
    // While the default boolean return value for a mock is 'false',
    // it's good to be explicit anyway:  
    Mockito.when(mockBindingResult.hasErrors()).thenReturn(false);
}

@Test
public void shouldStayOnRegistrationPageIfBindingErrors() {
    // Simulate having errors just for this test:
    Mockito.when(mockBindingResult.hasErrors()).thenReturn(true);

    ModelAndView mav = controller.register(user, mockBindingResult);

    // Check that we returned back to the original form:
    assertEquals("users/registration", mav.getViewName());
}