性能测试之看懂这一个LoadRunner再无困难的脚本

一个特别的练习需求

LoadRunner自带的训练的飞机票网站的例子中，有一个很有意思的流程，如下：首先登陆机票系统，然后查询从哪里到哪里的机票。然后系统会给你4张推荐票。选择一张机票，后就可以支付然后完成机票的预定和购买了。

我相信所有在用LoadRunner的人对这个流程都不陌生，很熟悉。那么今天测者提出一个问题，我想一个脚本购买推荐的4张飞机票。该如何处理对应的测试脚本呢？

一个飞机票的超级脚本

Action()

{

int i=0;//循环订票的游标变量

char temp[255];//临时存储字符串变量

int count=0;//存储循环关联数组长度变量

char tempfly[255];//临时存储字符串变量

web_url("WebTours",

"URL=http://127.0.0.1:1080/WebTours/",

"Resource=0",

"RecContentType=text/html",

"Referer=",

"Snapshot=t1.inf",

"Mode=HTTP",

LAST);

web_concurrent_start(NULL);

web_url("header.html",

"URL=http://127.0.0.1:1080/WebTours/header.html",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/",

"Snapshot=t2.inf",

"Mode=HTTP",

LAST);

web_url("welcome.pl",

"URL=http://127.0.0.1:1080/WebTours/welcome.pl?signOff=true",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/",

"Snapshot=t4.inf",

"Mode=HTTP",

LAST);

web_concurrent_end(NULL);

web_concurrent_start(NULL);

web_url("hp_logo.png",

"URL=http://127.0.0.1:1080/WebTours/images/hp_logo.png",

"Resource=1",

"RecContentType=image/png",

"Referer=http://127.0.0.1:1080/WebTours/header.html",

"Snapshot=t3.inf",

LAST);

web_url("webtours.png",

"URL=http://127.0.0.1:1080/WebTours/images/webtours.png",

"Resource=1",

"RecContentType=image/png",

"Referer=http://127.0.0.1:1080/WebTours/header.html",

"Snapshot=t5.inf",

LAST);

web_concurrent_end(NULL);

web_concurrent_start(NULL);

web_url("home.html",

"URL=http://127.0.0.1:1080/WebTours/home.html",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/welcome.pl?signOff=true",

"Snapshot=t6.inf",

"Mode=HTTP",

LAST);

web_reg_save_param("sessionuser","LB=<input type=hidden name=userSession value=","RB=>",LAST);//获取用于session值的关联函数

web_url("nav.pl",

"URL=http://127.0.0.1:1080/WebTours/nav.pl?in=home",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/welcome.pl?signOff=true",

"Snapshot=t7.inf",

"Mode=HTTP",

LAST);

web_concurrent_end(NULL);

web_concurrent_start(NULL);

web_url("JSFormSubmit.js",

"URL=http://127.0.0.1:1080/WebTours/JSFormSubmit.js",

"Resource=1",

"RecContentType=application/x-javascript",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?in=home",

"Snapshot=t8.inf",

LAST);

web_url("mer_login.gif",

"URL=http://127.0.0.1:1080/WebTours/images/mer_login.gif",

"Resource=1",

"RecContentType=image/gif",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?in=home",

"Snapshot=t9.inf",

LAST);

web_concurrent_end(NULL);

lr_start_transaction("login-0");

lr_think_time(9);

lr_error_message("sessionuser:%s",lr_eval_string("{sessionuser}"));//打印关联到的用户session值

web_submit_data("login.pl",

"Action=http://127.0.0.1:1080/WebTours/login.pl",

"Method=POST",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?in=home",

"Snapshot=t10.inf",

"Mode=HTTP",

ITEMDATA,

"Name=userSession", "Value={sessionuser}", ENDITEM,

"Name=username", "Value=test001", ENDITEM,

"Name=password", "Value=123456", ENDITEM,

"Name=JSFormSubmit", "Value=on", ENDITEM,

"Name=login.x", "Value=64", ENDITEM,

"Name=login.y", "Value=15", ENDITEM,

LAST);

web_concurrent_start(NULL);

web_url("nav.pl_2",

"URL=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=home",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/login.pl",

"Snapshot=t11.inf",

"Mode=HTTP",

LAST);

web_url("login.pl_2",

"URL=http://127.0.0.1:1080/WebTours/login.pl?intro=true",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/login.pl",

"Snapshot=t16.inf",

"Mode=HTTP",

LAST);

web_concurrent_end(NULL);

web_concurrent_start(NULL);

web_url("flights.gif",

"URL=http://127.0.0.1:1080/WebTours/images/flights.gif",

"Resource=1",

"RecContentType=image/gif",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=home",

"Snapshot=t12.inf",

LAST);

web_url("signoff.gif",

"URL=http://127.0.0.1:1080/WebTours/images/signoff.gif",

"Resource=1",

"RecContentType=image/gif",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=home",

"Snapshot=t13.inf",

LAST);

web_url("itinerary.gif",

"URL=http://127.0.0.1:1080/WebTours/images/itinerary.gif",

"Resource=1",

"RecContentType=image/gif",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=home",

"Snapshot=t14.inf",

LAST);

web_url("in_home.gif",

"URL=http://127.0.0.1:1080/WebTours/images/in_home.gif",

"Resource=1",

"RecContentType=image/gif",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=home",

"Snapshot=t15.inf",

LAST);

web_concurrent_end(NULL);

lr_end_transaction("login-0",LR_AUTO);

lr_start_transaction("book-1");

lr_think_time(11);

web_url("Search Flights Button",

"URL=http://127.0.0.1:1080/WebTours/welcome.pl?page=search",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=home",

"Snapshot=t17.inf",

"Mode=HTTP",

LAST);

web_concurrent_start(NULL);

web_url("reservations.pl",

"URL=http://127.0.0.1:1080/WebTours/reservations.pl?page=welcome",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/welcome.pl?page=search",

"Snapshot=t18.inf",

"Mode=HTTP",

LAST);

web_url("nav.pl_3",

"URL=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=flights",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/welcome.pl?page=search",

"Snapshot=t19.inf",

"Mode=HTTP",

LAST);

web_concurrent_end(NULL);

web_concurrent_start(NULL);

web_url("home.gif",

"URL=http://127.0.0.1:1080/WebTours/images/home.gif",

"Resource=1",

"RecContentType=image/gif",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=flights",

"Snapshot=t20.inf",

LAST);

web_url("itinerary.gif_2",

"URL=http://127.0.0.1:1080/WebTours/images/itinerary.gif",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=flights",

"Mode=HTTP",

LAST);

web_url("signoff.gif_2",

"URL=http://127.0.0.1:1080/WebTours/images/signoff.gif",

"Resource=0",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=flights",

"Mode=HTTP",

LAST);

web_url("in_flights.gif",

"URL=http://127.0.0.1:1080/WebTours/images/in_flights.gif",

"Resource=1",

"RecContentType=image/gif",

"Referer=http://127.0.0.1:1080/WebTours/nav.pl?page=menu&in=flights",

"Snapshot=t21.inf",

LAST);

web_concurrent_end(NULL);

web_url("button_next.gif",

"URL=http://127.0.0.1:1080/WebTours/images/button_next.gif",

"Resource=1",

"RecContentType=image/gif",

"Referer=http://127.0.0.1:1080/WebTours/reservations.pl?page=welcome",

"Snapshot=t22.inf",

LAST);

web_reg_save_param("flytype","LB=<input type = radio name=outboundFlight value=","RB=>","ORD=ALL","Savelen=18",LAST);//关联取得出现的4张电子机票

// web_reg_save_param("seatPref","LB=<input type=\"radio\" name=\"seatPref\" value=\"","RB=\" ","ORD=ALL","SaveLen=6",LAST);

// web_reg_save_param("seatType","LB=<input type=\"radio\" name=\"seatType\" value=\"","RB=\" ","ORD=ALL","SaveLen=8",LAST);

lr_error_message("seatPref_1:",lr_eval_string("{seatPref_1}"));

lr_error_message("seatPref_2:",lr_eval_string("{seatPref_2}"));

lr_error_message("seatPref_3:",lr_eval_string("{seatPref_3}"));

lr_error_message("seatType_1:",lr_eval_string("{seatType_1}"));

lr_error_message("seatType_2:",lr_eval_string("{seatType_2}"));

lr_error_message("seatType_3:",lr_eval_string("{seatType_3}"));

web_submit_data("reservations.pl_2",

"Action=http://127.0.0.1:1080/WebTours/reservations.pl",

"Method=POST",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/reservations.pl?page=welcome",

"Snapshot=t23.inf",

"Mode=HTTP",

ITEMDATA,

"Name=advanceDiscount", "Value=0", ENDITEM,

"Name=depart", "Value=Denver", ENDITEM,

"Name=departDate", "Value=05/29/2013", ENDITEM,

"Name=arrive", "Value={endplace}", ENDITEM,

"Name=returnDate", "Value=05/30/2013", ENDITEM,

"Name=numPassengers", "Value=1", ENDITEM,

"Name=seatPref", "Value={seatPerf}", ENDITEM,

"Name=seatType", "Value={seatType}", ENDITEM,

"Name=.cgifields", "Value=roundtrip", ENDITEM,

"Name=.cgifields", "Value=seatType", ENDITEM,

"Name=.cgifields", "Value=seatPref", ENDITEM,

"Name=findFlights.x", "Value=80", ENDITEM,

"Name=findFlights.y", "Value=15", ENDITEM,

LAST);

lr_error_message("seatPerf:%s",lr_eval_string("{seatPerf}"));

lr_error_message("seatType:%s",lr_eval_string("{seatType}"));

count = atoi(lr_eval_string("{flytype_count}"));

lr_error_message("lenflytype:%d",count);

lr_error_message("Flytype_1:%s",lr_eval_string("{flytype_1}"));

lr_error_message("Flytype_2:%s",lr_eval_string("{flytype_2}"));

lr_error_message("Flytype_3:%s",lr_eval_string("{flytype_3}"));

lr_error_message("Flytype_4:%s",lr_eval_string("{flytype_4}"));

for(i=0;i<count;i++)

{

sprintf(temp,"{flytype_%d}",i+1);//格式化flytype数组参数格式，取数组中一个存入temp变量

lr_error_message("temp:%s",temp);//打印temp变量的内容

sprintf(tempfly,"%s",lr_eval_string(temp));//将temp变量通过lr_eval_string函数将temp变量存储的对应loadrunner参数的对应内容存入tempfly变量中

lr_error_message("tempfly:%s",tempfly);//打印tempfly变量的内容

lr_error_message("lr_eval_string(tempfly):%s",lr_eval_string(tempfly));//通过lr_eval_string函数取得tempfly变量的内容

lr_save_string(tempfly,"flytypenum");//将tempfly变量内容存到flytypenum参数中，方便以后lr函数使用

lr_error_message("flytypenum:%s",lr_eval_string("{flytypenum}"));//打印flytypenum内容

web_submit_data("reservations.pl_3",

"Action=http://127.0.0.1:1080/WebTours/reservations.pl",

"Method=POST",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/reservations.pl",

"Snapshot=t24.inf",

"Mode=HTTP",

ITEMDATA,

"Name=outboundFlight", "Value={flytypenum}", ENDITEM,

"Name=numPassengers", "Value=1", ENDITEM,

"Name=advanceDiscount", "Value=0", ENDITEM,

"Name=seatType", "Value=Coach", ENDITEM,

"Name=seatPref", "Value=None", ENDITEM,

"Name=reserveFlights.x", "Value=63", ENDITEM,

"Name=reserveFlights.y", "Value=17", ENDITEM,

LAST);

web_submit_data("reservations.pl_4",

"Action=http://127.0.0.1:1080/WebTours/reservations.pl",

"Method=POST",

"RecContentType=text/html",

"Referer=http://127.0.0.1:1080/WebTours/reservations.pl",

"Snapshot=t25.inf",

"Mode=HTTP",

ITEMDATA,

"Name=firstName", "Value=test001", ENDITEM,

"Name=lastName", "Value=test001", ENDITEM,

"Name=address1", "Value=test001", ENDITEM,

"Name=address2", "Value=123456", ENDITEM,

"Name=pass1", "Value=test001 test001", ENDITEM,

"Name=creditCard", "Value=", ENDITEM,

"Name=expDate", "Value=", ENDITEM,

"Name=oldCCOption", "Value=", ENDITEM,

"Name=numPassengers", "Value=1", ENDITEM,

"Name=seatType", "Value=Coach", ENDITEM,

"Name=seatPref", "Value=None", ENDITEM,

"Name=outboundFlight", "Value={flytypenum}", ENDITEM,

"Name=advanceDiscount", "Value=0", ENDITEM,

"Name=returnFlight", "Value=", ENDITEM,

"Name=JSFormSubmit", "Value=off", ENDITEM,

"Name=.cgifields", "Value=saveCC", ENDITEM,

"Name=buyFlights.x", "Value=61", ENDITEM,

"Name=buyFlights.y", "Value=8", ENDITEM,

LAST);

}

web_url("bookanother.gif",

"URL=http://127.0.0.1:1080/WebTours/images/bookanother.gif",

"Resource=1",

"RecContentType=image/gif",

"Referer=http://127.0.0.1:1080/WebTours/reservations.pl",

"Snapshot=t26.inf",

LAST);

lr_end_transaction("book-1",LR_AUTO);

return 0;

}

特别点的解释

首先，LoadRunner是类C语言，因此变量要放到函数的开头声明（C语言的变量）。其次，在for循环中，我们看到了几次sprintf，那么这里了测者会详细说一下，第一次 （假设当前i=0）， sprintf(temp,"{flytype_%d}",i+1);，其中“{flytype1}”的含义（包含双引号），是将一个指向了存有flytype_1值的内存地址的指针指向的值赋值给了temp。也就是temp指向了一段存储了fltype_1值的内存。sprintf(tempfly,"%s",lrevalstring(temp));将flytype_1这个指针指向的内存地址存储的值赋给了tempfly，也就是说tempfly和flytype_1这两个指针都指向相同内存地址，这段地址存储的就是关联出来的第一张机票的ouboundFlight值。

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