我有一个类似于这个的Rest控制器：
@RestController
public class UserRestController {
@Autowired
private UserService userService;
@RequestMapping(value = "/user/activate",method = RequestMethod.POST)
public ResponseEntity
当我使用Postman调用它并且我不发送’key’参数时,我收到此JSON消息：
{
"timestamp": 1446211575193,"status": 400,"error": "Bad Request","exception": "org.springframework.web.bind.MissingServletRequestParameterException","message": "Required String parameter 'key' is not present","path": "/user/activate"
}
另一方面,我正在使用JUnit和MockMVC Spring实用程序测试此方法.
@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = ApplicationConfig.class)
@WebAppConfiguration
public class UserRestControllerTest {
private static MockMvc mockMvc;
@Mock
private UserService userService;
@InjectMocks
private UserRestController userRestController;
@Before
public void setup() {
MockitoAnnotations.initMocks(this);
mockMvc = MockMvcBuilders
.standaloneSetup(userRestController)
.setMessageConverters(
new MappingJackson2HttpMessageConverter(),new Jaxb2RootElementHttpMessageConverter()).build();
}
@Test
public void testActivateRequiredParams() throws Exception {
mockMvc.perform(
MockMvcRequestBuilders.post("/user/activate")
.contentType(MediaType.APPLICATION_FORM_URLENCODED)
.accept(MediaType.APPLICATION_JSON))
.andDo(MockMvcResultHandlers.print())
.andExpect(MockMvcResultMatchers.status().isBadRequest())
.andExpect(
MockMvcResultMatchers.content().contentType(
UtilsUnitTest.APPLICATION_JSON_UTF8))
.andExpect(
jsonPath(
"message",is("Required String parameter 'email' is not present")));
}
}
但是当我执行此测试时,我注意到响应不是JSON消息.事实上,我得到一个例外：
java.lang.AssertionError: Content type not set
特别是,完成的结果是
MockHttpServletRequest:
HTTP Method = POST
Request URI = /user/activate
Parameters = {}
Headers = {Content-Type=[application/x-www-form-urlencoded]}
Handler:
Type = com.company.controller.UserRestController
Method = public org.springframework.http.ResponseEntity
我推断当抛出异常时,这不会转换为JSON格式(当我发送电子邮件和关键参数时,我得到了正确的JSON结果)
问题很明显：如果抛出异常,我应该在单元测试配置中更改什么来获取JSON错误消息？
问题是在断言失败后测试停止：
.andExpect(MockMvcResultMatchers.content().contentType(UtilsUnitTest.APPLICATION_JSON_UTF8))
除此之外,jsonPath(“message”…不会点击任何内容.要验证返回的错误消息,请使用MockMvcResultMatchers.status().reason(< ResultMatcher>).
以下测试应该完成这项工作：
@Test
public void testActivateRequiredParams() throws Exception {
final ResultActions result = mockMvc
.perform(MockMvcRequestBuilders.post("/user/activate")
.contentType(MediaType.APPLICATION_FORM_URLENCODED).accept(MediaType.APPLICATION_JSON))
.andDo(MockMvcResultHandlers.print());
result.andExpect(MockMvcResultMatchers.status().isBadRequest());
result.andExpect(MockMvcResultMatchers.status().reason(is("Required String parameter 'email' is not present")));
}
但是考虑一下这个(测试错误信息)是不是一个好主意,也许看看this discussion.
