java - How to use @InjectMocks along with @Autowired annotation in Junit

Question

I have a class A which is using 3 differnt classes with autowiring

public class A () {

    @Autowired
    private B b;

    @Autowired
    private C c;

    @Autowired
    private D d;
}

While testing them, i would like to have only 2 of the classes (B & C) as mocks and have class D to be Autowired as normal running, this code is not working for me:

@RunWith(MockitoJUnitRunner.class)
public class aTest () {

    @InjectMocks
    private A a;

    @Mock
    private B b;

    @Mock
    private C c;

    @Autowired
    private D d;
}

Is it even possible to do so?

Answer 1

It should be something like

@RunWith(SpringJUnit4ClassRunner.class)
public class aTest () {

    @Mock
    private B b;

    @Mock
    private C c;

    @Autowired
    @InjectMocks
    private A a;

}

If you want D to be Autowired dont need to do anything in your Test class. Your Autowired A should have correct instance of D. Also i think you need to use SpringJUnit4ClassRunner for Autowiring to work, with contextConfiguration set correctly. Because you are not using MockitoJunitRunner you need to initialize your mocks yourself using

MockitoAnnotations.initMocks(java.lang.Object testClass)