Mockito do not throw exception - junit

Question

I have this method my repository method throws RepositoryException and service method throws Service exception i am mocking the repository and throwing repository exception but it is not throw any exception can anybody please explain what is going on here.
public class IndActivityTest {
static BigDecimal offset;
static SecurityContext userContext;
SearchFilter filter = new SearchFilter();
SearchFilterToDB filterToDB = new SearchFilterToDB();
static BigDecimal limit;
static User user = null;
#Mock
static UserRepository repository;
#Mock
static SearchRepository searchRepository;
#InjectMocks
static SearchApiServiceImpl searchApiImple;
#Before
public void init() {
MockitoAnnotations.initMocks(this);
}
#BeforeClass
public static void setUp(){
user = new User();
String scheme="https";
userContext = new ServiceSecurityContext(user, scheme);
}
#Test
public void getIndActivitiesPositiveResponse() throws RepositoryException,ServiceException{
List<IndActivityDetailEntity> activityDetailEntities = new ArrayList<>();
when(searchRepository.getIndActivitiesFromDB(filterToDB,user)).thenReturn(activityDetailEntities);
Response response = searchApiImple.getIndActivities(filter, userContext);
assertEquals(response.getStatus(), 200);
}
#Test(expected=ServiceException.class)
public void getIndActivitiesNegetiveResponse() throws RepositoryException,ServiceException{
when(searchRepository.getIndActivitiesFromDB(filterToDB,user)).thenThrow(new RepositoryException());
searchApiImple.getIndActivities(filter, userContext);
}
}
public Response getIndActivities(SearchFilter searchFilter, SecurityContext securityContext)
throws ServiceException {
List<Activity> activities = new ArrayList<>();
try {
logger.info("Entering getActivities");
List<IndActivityDetailEntity> activityDetailEntities = new ArrayList<>();
User user = (User) securityContext.getUserPrincipal();
SearchFilterToDB searchFilterToDB = newFilterToDB(searchFilter, user);
activityDetailEntities = searchRepository.getIndActivitiesFromDB(searchFilterToDB, user);
if (!activityDetailEntities.isEmpty())
activities = SearchUtil.convertIndActivityToIndActivityDTO(activityDetailEntities, searchRepository);
logger.info(" Exiting getActivities");
} catch(Exception e){
handleException(e);
}
return Response.status(200).entity(new InlineResponse200().data(activities)).build();
}
private void handleException(Exception e) throws ServiceException{
logger.error("Service Exception "+e);
if( e instanceof ServiceException)
throw (ServiceException)e;
if( e instanceof RepositoryException ){
RepositoryException re = (RepositoryException)e;
throw new ServiceException(re.getErrorCode(),re,re.getMessage());
}else{
throw new ServiceException(e.getMessage(), e,ServiceConstant.UNKNOWN);
}
}

Answer 1

The issue is at the line new FilterToDB(searchFilter, user) in your getIndActivities() method of the service, because searchFilterToDB objects are different, the method call is NOT actually mocked.
So, to solve the problem, you need to extract new FilterToDB object creation to a separate class & mock the method call to that class.