Injecting Mockito Mock objects using Spring JavaConfig and @Autowired

Question

I\'m trying to replace an @Autowired object with a Mockito mock object. The usual way of doing this was with xml using Springockito:

Answer 1

Moving away from the now unmaintained (as of this writing) Spingockito-annotations and to Mockito, we have a way of doing this very simply:

@RunWith(MockitoJUnitRunner.class)
@ContextConfiguration
public class MyTestClass {

    @Mock MockInterface mockObj;

    // test code
}

If you're using a real object, but would like to mock a dependency within it, for instance testing a service layer with DAO:

@RunWith(MockitoJUnitRunner.class)
@ContextConfiguration
public class MyTestClass {

    @InjectMocks RealService;

    @Mock MockDAO mockDAO;

    // test code
}

Finally, this can also be applied to Spring-boot, but using annotation initialization within setUp() until multiple class runners are supported:

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = MyMainSpringBootClass.class)
public class MyTestClass {

    @InjectMocks RealService;

    @Mock MockDAO mockDAO;

    @Before
    public final void setUp() throws Exception{
        MockitoAnnotations.initMocks(this);
    }

    // test code
}