详解c++种gmock单元测试框架

结果3：

结论三：

测试用例通过，派生类中的同名函数仍然是虚函数，同样支持多态，支持gomck

场景4：

class Turtle {

public:

 virtual ~Turtle() {}
 virtual void PenUp() = 0;
 virtual void PenDown() = 0;
};

class TurtleChild: Turtle {

public:

 void PenUp()
 {
  int a = 0;
 };
 void PenDown()
 {
  int b = 0;
 };
};


 class MockTurtleChild : public TurtleChild {
 public:
 MOCK_METHOD0(PenUp, void());
 MOCK_METHOD0(PenDown, void());
};
class PainterChildRef
{
 TurtleChild turtle;
public:
 PainterChildRef(TurtleChild& turtle)
  : turtle(turtle) {}

 bool DrawCircle(int, int, int) {
  turtle.PenDown();
  return true;
 }
};

TEST(PainterTest, ChildRefCanDrawSomething) {
 MockTurtleChild turtle;
 EXPECT_CALL(turtle, PenDown())
  .Times(AtLeast(1));

 PainterChildRef painter(turtle);

 EXPECT_TRUE(painter.DrawCircle(0, 0, 10));
}