基于参数值的C ++伪造/模拟返回值

Question

Using Typemock Isolator++. Is it possible that the returning value from a fake method is based on the value of parameter?

for example:

WHEN_CALLED(student->GradeOfCourse("a")).ReturnVal(70);
WHEN_CALLED(student->GradeOfCourse("b")).ReturnVal(85);

then if the parameter is ("a"), it will return 70.

and if the parameter is ("b") then it will return 85.

Answer 1

Disclaimer I work in Typemock

Use DoMemberFunctionInstead or DoStaticOrGlobalInstead to redirect your call to an alternative method - there you can return a differnet value based on the value of parameter.

Add this method

int FakeGradeOfCourse(char * name)
{
   if (strcmp(name,"a")==0)
   {
      return 70;
   }
   return 85;
 }

In your test call:

WHEN_CALLED(student->GradeOfCourse(_)).
   DoStaticOrGlobalInstead(FakeGradeOfCourse, NULL);

You can find an example for this in our docs .