Problem with "WithArg" and SetArgReferee, cannot deduce template type

[Edison Gustavo Muenz]

Hello all, I'm having a little bit of problem using WithArg and SetArgReferee together

suppose I have this class:

class MyMock {

public:

   MOCK_METHOD2(DoIt, void(int p0, int& p1));

};

And I want to make calls to "DoIt" assign: 'p1 = p0'

I looked at the documentation and found the two functions WithArg  and  SetArgReferee, so I tried:

void test()

{

   using namespace testing;

   MyMock mock;

   ON_CALL(mock, DoIt(_, _))

      .WillByDefault(WithArg<0>(SetArgReferee<1>));

}

But I wasnt successfull, the error message I get is this:

1>d:\framework_app\am_tests\helpers\doccadmoldesbuilder.cpp(76) : error C2780: 'testing::SetArgRefereeActionP<k,value_type> testing::SetArgReferee(value_type)' : expects 1 arguments - 1 provided

1>        d:\framework_app\third_part\gmock-1.4.0\include\gmock\gmock-more-actions.h(144) : see declaration of 'testing::SetArgReferee'

1>d:\framework_app\am_tests\helpers\doccadmoldesbuilder.cpp(76) : error C2784: 'testing::internal::WithArgsAction<InnerAction,k1> testing::WithArg(const InnerAction &)' : could not deduce template argument for 'overloaded function type' from 'overloaded function type'

1>        d:\framework_app\third_part\gmock-1.4.0\include\gmock\gmock-more-actions.h(121) : see declaration of 'testing::WithArg'

Since SetArgReferee is an Action, I thought I would be able to do this kind of binding on the args. Where am I missing the point here?

Thanks for any help

--
Edison Gustavo Muenz

[Zhanyong Wan (λx.x x)]

SetArgReferee is not an Action. Neither is SetArgReferee<1>.

http://code.google.com/p/googlemock/wiki/CheatSheet#Side_Effects

SetArgReferee<1>(value) is an Action. It requires you to know the
value when you write the expectation. The value cannot be obtained
from a mock function argument.

What you need is a custom action:

http://code.google.com/p/googlemock/wiki/CheatSheet#Defining_Actions

ACTION(AssignArg0ToArg1) { arg1 = arg0; }
...WillByDefault(AssignArg0ToArg1());

For more details,
http://code.google.com/p/googlemock/wiki/CookBook#Writing_New_Actions_Quickly

> Thanks for any help
> --
> Edison Gustavo Muenz
>

--
Zhanyong