如何在C ++的单元测试中的析构函数中检查函数的调用？

Question

In the following example, I would like to check if fooFunction is called upon destruction of the object.

#include <gtest/gtest.h>
#include <gmock/gmock.h>

class FooClass
{
public:

    ~FooClass(){ FooClass::fooFunction(); }
    virtual void fooFunction() {}
};

class MockFooClass : public FooClass
{
public:
    MOCK_METHOD0(fooFunction, void());
};

TEST(DumbTest, blabla)
{
    auto mock = new MockFooClass;
    EXPECT_CALL(*mock, fooFunction());
    delete mock;
}

However this test fails because the destructor of FooClass calls FooClass::fooFunction() instead of MockFooClass::fooFunction() . Does anyone know of a way to do that?

I'm using Visual Studio 2010.

I understand why this test fails: as soon as we enter the destructor of FooClass , the object is not a MockFooClass any more. What I'm looking for is if anyone knows of a way to get around it.

Answer 1

You can use Isolator++ to use check that the method was called.

class FooClass
{
public:

    ~FooClass(){ FooClass::fooFunction(); }
    virtual void fooFunction() {}
};


TEST(DumbTest, blabla)
{
    auto real = new FooClass;
    auto mock = FAKE_ALL<FooClass>(FakeOptions::CallOriginal);
    delete real;
    ASSERT_WAS_CALLED(mock->fooFunction());
}