c++ - GoogleMock: How to SetArgReferee according to another input parameter? -

i use googlemock mock service below:

class request {     int req_id;     int request; };  class response {     int req_id;     int response; };  int request(response& res, const request& req) {     res.req_id = req.req_id;     res.response = 2 * req.request;      return 1; }  expect_call(mock_service, request(_,_)).willonce(doall(setargreferee<0>(/* here? */), return(1))); 

how can setargreferee response& res according passed in const request& req, i.e. res.req_id = req.req_id; , res.response = 2 * req.request; ?

your code not mocked - guess illustration of problem.

so assuming have mocked function reqest within mocked class mockservice - use invoke action request function parameter:

expect_call(mock_service, request(_,_)).willonce(invoke(&request)); 

if call base class function - this:

class mock_service_class : public service_class { public:     mock_method2(request, int(response& res, const request& req));     int baserequest(response& res, const request& req)     {         return service_class::request(res, req);     } }; 

and expect_call in way:

expect_call(mock_service, request(_,_))     .willonce(invoke(&mock_servide,                       &mock_service_class::baserequest));