CODEWITHSUNDEEP
restspring-bootspring-boot-testcontent-negotiation
Alex
Alex

Reputation: 503

spring-boot test: @get request returns with body null

while doing Content-negotiation testing mock GET returns with null in response body although response status is 200.

java.lang.AssertionError: Response header 'Content-Type' 
Expected :application/json;charset=UTF-8
Actual   :null

here is full test class code. I want to verify that content type is json.

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.MOCK)
@AutoConfigureMockMvc
public class ControllerTest {

    @Autowired
    private MockMvc mockMvc;

    @MockBean
    Controller controller;

    @Test
    public void test() throws Exception {
        mockMvc.perform(get("/query?mediaType=json"))
                .andExpect(status().isOk())
                .andExpect(header().string(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_UTF8_VALUE));
    }}

here is my controller's endpoint. 

    @RestController
    public class Controller {

        @RequestMapping(value = "/query", produces = {"application/json", "application/xml"}, method = RequestMethod.GET)
        public @ResponseBody ResultSet getResults(
                final HttpServletRequest request
        ) throws Throwable {

       // logic  ...
       SearchService search = (SearchService) context.getBean("search");
       ResultSet result = search.getResults();
       return result;
    }

Any thoughts why Body would return as null?

Upvotes: 0

Views: 1647

Answers (1)

Debojit Saikia
Debojit Saikia

Reputation: 10632

The issue is with your Controller definition in your Test class. As you are testing your Controller, you should be using an actual instance of it. Get you mockMvc instance for this Controller as below (you can do it in your @Before annotated setup method):

mockMvc = MockMvcBuilders.standaloneSetup(new Controller()).build();

Upvotes: 1

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