Mockito when method not working

Question

I am using mockito as mocking framework. I have a scenerio here, my when(abc.method()).thenReturn(value) does not return value, instead it returns null. ``` public class DQExecWorkflowServiceImplTest { @InjectMocks DQExecWorkflowServiceImpl dqExecWorkflowServiceImpl = new DQExecWorkflowServiceImpl(); @Mock private DQUtility dqUtility; @Mock private DqExec dqExec; @Mock private DqCntlDefn dqCntlDefn; @Mock private DqCntlWfDefn dqCntlWfDefn; @Mock private DqCntlWfDefnTyp dqCntlWfDefnTyp; @Mock private IDQControlWfDefTypeService controlWfDefTypeService; @Before public void setUp() throws Exception { dqExec = new DqExec(); dqCntlWfDefn = new DqCntlWfDefn(); dqUtility = new DQUtility(); dqCntlWfDefnTyp = new DqCntlWfDefnTyp(); dqCntlWfDefnTyp.setDqCntlWfDefnTypCd("MIN_INCLUSIVE_VAL"); dqExecWorkflowServiceImpl .setControlWfDefTypeService(controlWfDefTypeService); } @Test public void testExecuteWorkflow() { when(controlWfDefTypeService.getDqCntlWfDefnTypCd(dqCntlWfDefn)) .thenReturn(dqCntlW…

Accepted Answer

Mockito mock works when we mock the objects loosely.

Here is the change i have made to make it work:

```
when(controlWfDefTypeService.getDqCntlWfDefnTypCd(any(DqCntlWfDefn.class))
    .thenReturn(dqCntlWfDefnTyp);
```

Instead of passing the object of the Mock class, I passed the class with the Matcher `any()` and it works.

Mockito when method not working

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