handling exception for RestAPI unit test

Question

I have a method

public class ActivityManager {
    private ActivityManager activityManager_;

@Autowired
public ActivityManager(ActivityManager activityManage)
{
    activityManager_= activityManage;
}
@RequestMapping(value ="activityManager/", method = RequestMethod.GET)
   public List<Data> getData() throws RestControllerException {
        try {
            return activityManage_.fetchData();
        } catch (Exception ex) {
            throw new RestControllerException();
        }
     }
}

And I tried to test the throw exception but it does not work. I got confused into the case what's the status() for resultmatcher should be.

    @Test(expected = RestControllerException.class)
        public void getDataError() throws Exception {
           ActivityManager activityManagerMock = Mockito.mock(ActivityManager
                .class); 
doThrow(RestControllerException.class).when(activityManagerMock).fetchData();
            mockMvc_.perform(get("/activityManager")
                    .contentType(MediaType.APPLICATION_JSON))
        .andExpect(status().isInternalServerError());
        }

Is there any document that I can read more about handling exception for restapi unit test? Thanks

Where are you setting the mock activityManagerMock to Controller bean.?? — Praneeth Ramesh, May 03 '17 at 21:44

score 0 · Answer 1 · answered May 03 '17 at 22:13

 @Autowired
    private ActivityManagerService activityManager;

This will inject the actual bean into the controller not the mock which you created.

Add this inside your test class.

@Autowired
private ControllerBean controller;

@Before
public void init(){
     ReflectionTestUtils.setField(controller, "activityManager", activityManagerMock);
}

This will set the MockObject into activityManager of Controller. And hence while running test the mock objects fetchData() will be called which inturn throws the exception.

handling exception for RestAPI unit test

1 Answers1