设计模式12——代理模式

用例：

//proxy.cpp
//代理模式：为其它对象提供一种代理以控制对这个对象的方法。

#include "gtest/gtest.h"

class Subject
{
public:
    Subject() {}
    virtual ~Subject() {}

    virtual int Request() = 0;
};

class RealSubject
{
public:
    RealSubject() {}
    virtual ~RealSubject() {}

    int Request()
    {
        return 1;
    }
};

class Proxy : Subject
{
public:
    Proxy() {}
    ~Proxy() {}

    int Request()
    {
        return subj.Request();
    }

private:
    RealSubject subj;
};

TEST(PROXY,proxy)
{
    Proxy* proxy = new Proxy();
    EXPECT_EQ(1,proxy->Request());
    delete proxy;
}