//TestSuit:Test.h
#ifndef TEST_H
#define TEST_H
#include <string>
#include <iostream>
#include <cassert>
using std::string;
using std::ostream;
using std::cout;

//fail_() has an underscore to prevent colision with ios::fail().For consistency , test_() and succeed_()
//also have underscores.
#define test_(cond)    do_test(cond,#cond,__FILE__,__LINE__)
#define fail_(str) do_fail(str,__FILE__,__LINE__)

namespace TestSuite{
    class Test{
        ostream* osptr;
        long nPass;
        long nFail;
        //Disallowed
        Test(const Test&);
        Test& operator=(const Test&);
    public:
        void do_test(bool cond,const std::string& lbl,const char* fname,long lineno);
        void do_fail(const string& lbl,const char* fname,long lineno);
    public:
        Test(ostream* osptr=&cout){
            this->osptr=osptr;
            nPass=nFail=0;
        }
        virtual ~Test(){}
        virtual void run()=0;
        long getNumPassed() const{return nPass;}
        long getNumFailed() const{return nFail;}
        const ostream* getStream() const{return osptr;}
        void setStream(ostream* osptr){this->osptr=osptr;}
        void succeed_(){++nPass;}
        long report() const;
        virtual void reset(){nPass=nFail=0;}
    };
}//namespace TestSuite
#endif//TEST_H


//:TestSuite:Test.cpp{0}
#include "Test.h"
#include <iostream>
#include <typeinfo>

#include <vector>

using namespace std;
using namespace TestSuite;

//test_()和fail_() 宏在预处理的时候取得当前文件的文件名和当前行的行号信息，
//并把文件名传递给do_test ()，并行号传递给do_fail()这两个函数则显示一个消息并修改相关的计数器。
void Test::do_test(bool cond,const std::string& lbl,const char* fname,long lineno){
    if(!cond)
        do_fail(lbl,fname,lineno);
    else
        succeed_();
}

void Test::do_fail(const std::string& lbl,const char* fname,long lineno){
    ++nFail;
    if(osptr){
        *osptr<<typeid(*this).name()<<"failure:("<<lbl<<"),"<<fname<<"(line"<<lineno<<")"<<endl;
    }
}

long Test::report() const{
    if(osptr){
        *osptr<<"Test\""<<typeid(*this).name()<<"\":\n\tPassed:"<<nPass<<"\tFailed:"<<nFail<<endl;
    }
    return nFail;
//Test 类不但保存着成功测试的次数和失败的次数，而且保存着Test::report()显示结果所需的流。
}
class RparseTest:public Test{
    //To store the words;
    vector<string> strings;
public:
    void parseForData(){
        //The ';'characters will be delimiters
        string s("now.;sense;make;to;going;is;This");
        //The last element of the string ;
        int last=s.size();
        //The beginning of the current word;
        size_t current =s.rfind(';');
        //Walk backword through the string;
    //    while(current!=string::npos){
            while(current<4294967295){
            //Push each word into the vector.
            //Current is incremented before copying
            //to avoid copying the delimiter:
            ++current;
            strings.push_back(s.substr(current,last-current));
            //Back over the delimiter we just found.
            //and set last to the end of the next word :
            current-=2;
            last=current+1;
            //Find the next delimiter;
            current=s.rfind(';',current);

        }
        //Pick up the first word-- it's not
        //preceded by a delimiter:
        strings.push_back(s.substr(0,last));
    }
    void testData(){
        //Test them in the new order:
        test_(strings[0]=="This");
        test_(strings[1]=="is");
        test_(strings[2]=="going");
        test_(strings[3]=="to");
        test_(strings[4]=="make");
        test_(strings[5]=="sense");
        test_(strings[6]=="now.");
        string sentence;
        for(size_t i=0;i<strings.size()-1;i++)
            sentence+=strings[i]+=" ";
        //Manually put last word in to avoid an extra space;
        sentence+=strings[strings.size()-1];
        test_(sentence=="This is going to make sense now");
    }
    void run(){
        parseForData();
        testData();
    }
};

int main(){
    RparseTest t;
    t.run();
    return t.report();
}///:~

求教，是哪里出了问题？

[ 本帖最后由 liuyizhao117 于 2014-3-5 16:58 编辑 ]