WHEN_CALLED problem with derived class

Hello,

I am working on a C++ unit test. I have a  production code like below.

I am having trouble for redirecting a method call with a derived class which inherits from a base class as protected.

I want to call MockMethodA on anotherObj. (anotherObj is an instance of a concrete class in my unit test project) when methodA is called inside methodB.

But It does not work. It calls methodA of BaseClass. I tried both WHEN_CALLED and PRIVATE_WHEN_CALLED macros.

WHEN_CALLED(d->methodA()).DoMemberFunctionInstead(&anotherObj, MockMethodA);

PRIVATE_WHEN_CALLED(d, methodA).DoMemberFunctionInstead(&anotherObj, MockMethodA);

d->methodB();

//production code. It cannot be changed.

class BaseClass

{

public:

BaseClass(){};

virtual ~BaseClass(){};

virtual void methodA()

{

cout << \"methodA\" << endl;

}

};

class DerivedClass :protected BaseClass

{

public:

DerivedClass(){};

~DerivedClass(){};

void methodB()

{

cout << \"methodB\" << endl;

BaseClass::methodA();

}

};