Junit MockMvc perform POST with path variable in URL return 404 not found

Question

I have a SpringBoot application with this method in the controller to create an user in the database. The controller is working fine in Postman.

@RestController
@RequestMapping("/v1")
public class UserController {

  @PostMapping(value = "/user/{id}")
  public void createUser(@PathVariable Integer id, @Valid @RequestBody User request,
        BindingResult bindingResult) throws Exception {

    if (bindingResult.hasErrors()) {        
        throw new RequestValidationException(VALIDATION_ERRORS, bindingResult.getFieldErrors());
    }               
    userService.createUser(id, request), HttpStatus.CREATED);
}

Now I have a junit test case to test this method and I am getting a 404

@RunWith(SpringRunner.class)
@SpringBootTest(classes = MyApp.class)
public class UserTest {

  private MockMvc mockMvc;
  final String CREATE_USER_URL = "/v1/user/" + "10";

  private final MediaType contentType = new MediaType(MediaType.APPLICATION_JSON.getType(),
        MediaType.APPLICATION_JSON.getSubtype(), Charset.forName("utf8"));

@Test
public void testCreateUser() throws Exception { 

  mockMvc.perform(post(CREATE_USER_URL)  
   // doesn't work either if I put "/v1/user/10" or post("/v1/user/{id}", 10) here
            .content(TestUtils.toJson(request, false))
            .contentType(contentType))
            .andDo(print())
            .andExpect(status().isCreated())
            .andReturn();  
 }

But in the log, I was able to see the correct url:

MockHttpServletRequest:

  HTTP Method = POST
  Request URI = /v1/user/10
  Parameters = {}

Can someone please let me know why I am getting a 404 NOT Found? Thanks.

can you post the code for entire controller? I feel you are missing to add part of @RequestMapping at controller level into your URL — Hiren Shah
– Hiren Shah, Commented Nov 15, 2019 at 20:57

Ryuzaki L · Accepted Answer · 2019-11-15 21:39:41Z

2

From docs you need @AutoConfigureMockMvc on class and @Autowire MockMvc

Another useful approach is to not start the server at all, but test only the layer below that, where Spring handles the incoming HTTP request and hands it off to your controller. That way, almost the full stack is used, and your code will be called exactly the same way as if it was processing a real HTTP request, but without the cost of starting the server. To do that we will use Spring’s MockMvc, and we can ask for that to be injected for us by using the @AutoConfigureMockMvc annotation on the test case:

Code :

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class UserTest {

   @Autowire
   private MockMvc mockMvc;
   final String CREATE_USER_URL = "/v1/user/" + "10";

   private final MediaType contentType = new MediaType(MediaType.APPLICATION_JSON.getType(),
    MediaType.APPLICATION_JSON.getSubtype(), Charset.forName("utf8"));

  @Test
  public void testCreateUser() throws Exception { 

    mockMvc.perform(post(CREATE_USER_URL)  
 // doesn't work either if I put "/v1/user/10" or post("/v1/user/{id}", 10) here
        .content(TestUtils.toJson(request, false))
        .contentType(contentType))
        .andDo(print())
        .andExpect(status().isCreated())
        .andReturn();  
   }
}

edited Nov 15, 2019 at 21:39

answered Nov 15, 2019 at 21:04

Ryuzaki L

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2 Comments

jlp Over a year ago

Thank you. But I am still getting 404 after added AutoConfigureMockMvc on class and Autowired MockMvc

jlp Over a year ago

Sorry. It is working now. I was copying the wrong annotation. Thank you very much for helping!

sai · Accepted Answer · 2019-11-16 11:20:45Z

If want to Test your real springboot url Test (End to end Test)    
u can use  rest-assured or resttemplte 

@RunWith(SpringJUnit4ClassRunner.class)  
@ContextConfiguration(classes = Application.class) 
@TestPropertySource(value={"classpath:application.properties"})
@SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT)
public class SpringRestControllerTest {
    @Value("${server.port}") 
    int port;
       @Test
       public void getDataTest() {
              get("/api/tdd/responseData").then().assertThat().body("data", equalTo("responseData"));
       }
       @Before
       public void setBaseUri () {
               RestAssured.port = port;
               RestAssured.baseURI = "http://localhost"; // replace as appropriate
       }
}

https://dzone.com/articles/test-driven-development-with-spring-boot-rest-api

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