Empty content body in checking exception scenarios with mockmvc - spring

Question

Overview:
I am going to test bad request (400) with a customized error message in Spring MVC Test. The test gets 400 as status; however the content body is empty.
The code snippets are as follows:
#Before
public void setup() {
MockitoAnnotations.initMocks(this);
memberServiceController.setMemberDetailsApiController(mockMemberDetailsApiController);
memberServiceController.setResourceMessage(mockResourceMessage);
mockMvc = MockMvcBuilders.webAppContextSetup(context)
.addFilter(new ShallowEtagHeaderFilter())
.apply(documentationConfiguration(restDocumentation))
.build();
}
#Test
public void getMemberDetails_whenStoreIdIsNull_setStatusToBadRequest() throws Exception {
Mockito.doReturn("storeId is empty").when(mockResourceMessage).getMessage(MEMBER_ERROR_INVALID_STOREID);
mockMvc.perform(get(URL)
.header(REQUEST_HEADER_COOKIE, DEFAULT_COOKIE_VALUE)
.param(REQUEST_PARAM_MEMBERSHIP_IDENTIFIER, "MEMBER1"))
.andDo(MockMvcResultHandlers.print())
.andDo(document("memberServices/GetMemberDetailsNullStoreId",
requestHeaders(
headerWithName(REQUEST_HEADER_COOKIE).description(REQUEST_HEADER_COOKIE_DESCRIPTION)
),
requestParameters(
parameterWithName(REQUEST_PARAM_MEMBERSHIP_IDENTIFIER).description(REQUEST_PARAM_MEMBERSHIP_IDENTIFIER_DESCRIPTION)
)))
.andExpect(status().isBadRequest())
.andExpect(content().string(containsString("storeId is empty".toLowerCase())))
.andReturn().getResponse();
}
The raised exception is as follows:
MockHttpServletRequest:
HTTP Method = GET
Request URI = /retailer1/memberDetails
Parameters = {membershipIdentifier=[MEMBER1]}
Headers = {Cookie=[SESSION=67421bc3-36da-4b64-9aca-94edf57211f6]}
Handler:
Type = com.blss.retailServices.memberServices.restServices.MemberRestController
Method = public org.springframework.http.HttpEntity<org.springframework.hateoas.Resource<com.blss.retailServices.memberServices.models.MemberDetailsResponseModel>> com.blss.retailServices.memberServices.restServices.MemberRestController.getMemberDetails(com.blss.retailServices.memberServices.models.MemberModel)
Async:
Async started = false
Async result = null
Resolved Exception:
Type = com.blss.retailServices.InvalidRequestException
ModelAndView:
View name = null
View = null
Model = null
FlashMap:
Attributes = null
MockHttpServletResponse:
Status = 400
Error message = null
Headers = {}
Content type = null
Body =
Forwarded URL = null
Redirected URL = null
Cookies = []
java.lang.AssertionError: Response content
Expected: a string containing "storeid is empty"
but: was ""
The generated response in API Doc with asciidoc is as follows:
HTTP/1.1 400 Bad Request
Question:
Now I would appreciate it if anyone can help me find way to get bad request with my customized exception message ("storeId is empty") in order to be added to generated API documentation and have something like bellow as generated response in API documentation:
HTTP/1.1 400 Bad Request,
storeId is empty

Answer 1

The problem was related to exception handling in my code. I forgot to add GlobalControllerExceptionHandler class which is our exception handler to #SpringApplicationConfiguration in my test class. So after adding it as follows my problem solved:
#SpringApplicationConfiguration(classes = {
MemberRestControllerTest.class,
MemberRestController.class,
ResourceResultProcessor.class,
GlobalControllerExceptionHandler.class
})
public class MemberRestControllerTest {
...
}