[FIXED] Mockito - Mock not being injected for one of the testcases

Issue

I have a jsf spring application and using mockito for my unit test. I keep getting NullPointerException when i run my junit test in iEmployeeService mocking. There are not Exception for iSecurityLoginService.

Method to be mocked

@Autowired
IEmployeeService iEmployeeService;
@Autowired
ISecurityLoginService iSecurityLoginService;
public void addEvent() {

    entityEventsCreate.setTitle(entityEventsCreate.getTitle());
    entityEventsCreate.setModifiedBy(iSecurityLoginService
                .findLoggedInUserId());

    int eventId = iEmployeeService.addEmployeeTimeOff(entityEventsCreate);
}

My JUnit test is annotated with @RunWith(MockitoJUnitRunner.class)

@Mock
ISecurityLoginService iSecurityLoginService;

@Mock
IEmployeeService iEmployeeService;

@InjectMocks
ServiceCalendarViewBean serviceCalendarViewBean  = new ServiceCalendarViewBean();

@Before public void initMocks() {
           MockitoAnnotations.initMocks(this);
}

@Test
public void testSaveEvent() {
    Mockito.when(iSecurityLoginService.findLoggedInUserId()).thenReturn(1);
    serviceCalendarViewBean.getEntityEventsCreate().setTitle("Junit Event Testing");

    Mockito.when(iSecurityLoginService.findLoggedInUserId()).thenReturn(1);
    Mockito.when(iEmployeeService.addEmployeeTimeOff(Mockito.any(Events.class))).thenReturn(2);

    serviceCalendarViewBean.addEvent();
}

Solution

I solved the problem..In my spring bean, i had 2 objects for the same service interface. so the mock was being set for the first interface object.

Ex: in my bean i had,

@Autowired
IEmployeeService employeeService;
@Autowired
IEmployeeService iEmployeeService;

So the mock create for the IEmployeeservice interfaces was being inject for the first service object irrelevant for their names.

@Mock
IEmployeeService iEmployeeService;

ie, the mock object 'iEmployeeService' was injected to beans 'employeeService' .

Thank you for all those who helped..:)

Answered By - Eva
Answer Checked By - Clifford M. (JavaFixing Volunteer)