CODEWITHSUNDEEP
javaarraylistmockitodao
Ashish
Ashish

Reputation: 85

Mockito issue with List

I have a DAO method which returns a List.

Now I am trying to mock this DAO class in my service layer but when I invoke the DAO method, it is giving me a empty even though I have mocked the DAO method Below is the sample code snippet,

public class ABCTest {

@InjectMocks
ABC abc = new ABC();   

@Mock
private ABCDao dao;

@Before
public void setUp() {
    MockitoAnnotations.initMocks(this);
    dao = Mockito.mock(ABCDao.class);
    Mockito.when(dao.getListFromDB()).thenReturn(Arrays.asList("1","2","3"));
}

@Test
public void testServiceMethod() {
    abc.serviceMethod();  // Inside this method when the DAO method is called, it is giving me an empty list even though I have mocked it above.
}

Any pointers would be helpful

Upvotes: 0

Views: 2512

Answers (1)

lance-java
lance-java

Reputation: 27996

  1. Don't use MockitoAnnotations.initMocks(this); use @RunWith(MockitoJunitRunner.class) instead
  2. You are calling dao = Mockito.mock(ABCDao.class) which overrides the dao created by MockitoAnnotations.initMocks(this)
  3. the ABCDao instance inside ABC is now different to the dao member of your test case.

I can only assume that the following would fail:

assertTrue(dao == abc.getDao())

Solution: Remove the following line

dao = Mockito.mock(ABCDao.class);

Upvotes: 1

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