Mockito @InjectMocks doesn't work for fields with same type

Question

I was very surprised to find out that following simple code example doesn\'t work for all Mockito versions > 1.8.5

@RunWith(MockitoJUnitRunner.class)
public clas         


        

Answer 1

This is documented in mockito as work around, if multiple mocks exists of the same type. It does not resolve the implementation based on the name provided (ie @Mock(name = "b2")). The algorithm it uses to resolved the implementation is by field name of the injected dependency. So your code above will resolve correctly (b2 => @Mock private B b2 and b3 => @Mock private B b3).

The other workaround is to use constructor injection which is the recommended way of injecting dependencies.