Inject mock into a Spy

[deepak gupta]

Hi There.

class A{

class B;

class C;

}

class C {

class D;

class E

}

I want to write unit test for class A:

I want C to be a spy so that I can call methods of C. I don't want to mock results of C's methods. However, I do want to mock D and E in C. How can I do this.

Some options I have explored are:

Option 1:

@Mock B b;

@Mock D d;

@Mock E e;

@Spy

@InjectMocks

C c;

@InjectMocks A a;

Option 2:
Options given here: https://stackoverflow.com/questions/43926636/mockito-inject-mock-into-spy-object

Option 3:

@Mock B b;

@Mock D d;

@Mock E e;

@Spy C c = new C(d,e);

@InjectMocks A a;

None of the options are working for me. Please help.