Mockito: Wanted but not invoked

[Ashwin Ganesh]

When verify method of Mockito class gets called, I am getting wanted but not invoked error in jUnit?
I understand that the  REST API call is not happening. But I would like to know the reason, of where I have slipped out.
Can anyone please assist me on this?

@WebAppConfiguration
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {TestContextConfiguration.class})
public class ScenarioDeploymentControllerUnitTest {
    private MockMvc mockMvc;
    
    @Mock
    ScenarioDeploymentServiceImpl scenarioDeploymentService;

    @InjectMocks
    ScenarioDeploymentController scenarioDeploymentController;
    
    @Before
    public void init() {
        MockitoAnnotations.initMocks(this);
        mockMvc = MockMvcBuilders.standaloneSetup(scenarioDeploymentController).addFilters(new CORSFilter()).build();
    }
    
    @Test
    public void testScenarioDeployment() throws Exception {
        ScenarioModel scenarioModel = ScenarioDeploymentAPITestClient.getScenarioModel();
        
        doNothing().when(scenarioDeploymentService).persistScenarioModel(scenarioModel);
        
        mockMvc.perform(post("/v1/scenarios"));
        verify(scenarioDeploymentService, times(1)).persistScenarioModel(scenarioModel);
        verifyNoMoreInteractions(scenarioDeploymentService);
    }
}

@RestController
public class ScenarioDeploymentController implements IScenarioDeploymentAPI {
	
	@Autowired
	IScenarioDeploymentService scenarioDeploymentService;

	@Override
	public ResponseEntity<Void> postScenarioModel(@Valid @RequestBody ScenarioModel body) throws JsonProcessingException {
		scenarioDeploymentService.persistScenarioModel(body);
        return new ResponseEntity<Void>(HttpStatus.ACCEPTED);
	}
}

@Service
public class ScenarioDeploymentServiceImpl implements IScenarioDeploymentService {
	
//	@Autowired
//	ScenarioModelRepository scenarioModelRepository;

	@Override
	public void persistScenarioModel(ScenarioModel scenarioModel) throws JsonProcessingException {
		ScenarioModelEntity scenario = new ScenarioModelEntity();
		ObjectMapper mapper = new ObjectMapper();
		scenario.setScenarioDefId(scenarioModel.getScenarioId());
		scenario.setScenarioModel(mapper.writeValueAsString(scenarioModel));
//		scenarioModelRepository.save(scenario);
	}
}

[Junilu Lacar]

You declare a ScenarioDeploymentController as a fixture and use @InjectMocks to autowire it. However, you don't have any instance to autowire. Mokito won't report an error though and just keep going.

See this article: https://tedvinke.wordpress.com/2014/02/13/mockito-why-you-should-not-use-injectmocks-annotation-to-autowire-fields/