51Testing软件测试网J6O4fWc1y"x精简你的Loadrunner脚本
/kR.E2fnFD B_(K051Testing软件测试网5v-t0w ` Qq6^d
od-Y8I3m}5A|#g0D_v uH0PS:本人在51testing和sina的blog的文章均属原创,转载请注明出处!!!
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51Testing软件测试网;apJ7{AJ;MmL;O)Y在论坛混了一段日子,很多网友在问问题的时候,贴出来很多的脚本代码,正好最近做测试的时候,遇到一个负载生成造成机器资源不够的情况,后来思索并尝试精简loadrunner脚本,胡乱改了一通,居然也找到了一些心得,拿出来抛砖引玉哈。51Testing软件测试网.SF)wO4F1m`
.zY3n\Iy7D ?0先看一个例子:51Testing软件测试网 ehU9j8}[5H
录制百度贴吧【abcd】的发帖过程;
'U5A:Hin0录制步骤如下:51Testing软件测试网9ya!b5c(t$n
1、获取abcd吧的帖子列表web地址
0U%E9^AHH0O02、打开lr,录制刚刚获取的地址
2r l0doQ)G-vm03、在lr打开的浏览器最下方输入标题、内容和验证码,提交
8Bn;EM G]04、发帖成功后,自动返回帖子列表页51Testing软件测试网U+K*` v
Y8?
P5Y%Ff3l0生成脚本如下:51Testing软件测试网.{L~xR
=============================================51Testing软件测试网2LP$j3H:V!Yh)aLs+F6]
Action()
{$y$o+MD*i/[1K0{
x2Q
u(?4Ksm0I051Testing软件测试网d2b(l2_fY web_add_cookie("BAIDUID=2A6A7BC594DCF7E76616EFD7922F0CC1; DOMAIN=post.baidu.com");51Testing软件测试网8rkOX| {){\
51Testing软件测试网 S(S"~.gd]
} web_add_cookie("BAIDUID=2A6A7BC594DCF7E76616EFD7922F0CC1; DOMAIN=eiv.baidu.com");51Testing软件测试网'[_|eJS!X
Fh0Cza/u7}0 web_url("f",51Testing软件测试网.A4sy!^6o J1]'j
"URL=http://post.baidu.com/f?ct=&tn=&rn=&pn=&lm=&kw=abcd&rs2=0&myselectvalue=1&word=abcd&tb=on",51Testing软件测试网E0K9C3U\"E P'g
"Resource=0",51Testing软件测试网:\eZW~
"RecContentType=text/html",
1q O
U,AJ0 "Referer=",
8C\CHn*Zc0 "Snapshot=t1.inf",
4{mT
qm%C0 "Mode=HTML",51Testing软件测试网~]6S$T5b
EXTRARES,51Testing软件测试网0X
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"Url=http://eiv.baidu.com/maimg/20070718/1757151255.swf", "Referer=http://post.baidu.com/f?ct=&tn=&rn=&pn=&lm=&kw=abcd&rs2=0&myselectvalue=1&word=abcd&tb=on", ENDITEM,51Testing软件测试网d)v`X[Y7r
m
"Url=/cgi-bin/genimg?F5724DD0BBD0845680CD5CBA80EE8A19B4D5FF28C2B84F5634DEF9DB8FD7EEB7033726F18921F4DCD0DB4A81198EBDFF25859D88DEB4E0B155CBB0FC860807", "Referer=http://post.baidu.com/f?ct=&tn=&rn=&pn=&lm=&kw=abcd&rs2=0&myselectvalue=1&word=abcd&tb=on", ENDITEM,
0EhCJb6ckMn0 LAST);51Testing软件测试网q7ev1E.R4|
51Testing软件测试网3^ E
~&z5U#M web_add_cookie("BAIDUID=2A6A7BC594DCF7E76616EFD7922F0CC1; DOMAIN=tieba.baidu.com");51Testing软件测试网+]X;h@#x
51Testing软件测试网7xA(dH1P Ls&C lr_think_time(13);
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lY/u[6q051Testing软件测试网&yck1v-G!{}-e.a web_submit_data("f_2",51Testing软件测试网0V'A0Ny Gp^
"Action=http://tieba.baidu.com/f",51Testing软件测试网}#|HY.u0P{2N
"Method=POST",
j8Chl4TSLV2R~]0 "RecContentType=text/html",
ocC*k-Z%O9W0 "Referer=http://post.baidu.com/f?ct=&tn=&rn=&pn=&lm=&kw=abcd&rs2=0&myselectvalue=1&word=abcd&tb=on",
k%N|/@N5U4O NE0 "Snapshot=t2.inf",
Io4hb+D,J!o0 "Mode=HTML",
.W,|3cK q0 ITEMDATA,
7Ms3Z,S J?]k0a0 "Name=ct", "Value=385875968", ENDITEM,51Testing软件测试网2uVi Q"? HP,ta
"Name=tn", "Value=baiduSubmitThread", ENDITEM,
8` t6T6Vn1D1?EMB0 "Name=word", "Value=abcd", ENDITEM,51Testing软件测试网9SZr
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"Name=lm", "Value=208401", ENDITEM,51Testing软件测试网Z)^L?pL3|5]F
"Name=z", "Value=0", ENDITEM,51Testing软件测试网6Z{,O uPP
"Name=sc", "Value=0", ENDITEM,
6jVP sQ%s0 "Name=cm", "Value=0", ENDITEM,
E#K t!H8O*aUP%h0Fq0 "Name=bs", "Value=F5724DD0BBD0845680CD5CBA80EE8A19B4D5FF28C2B84F5634DEF9DB8FD7EEB7033726F18921F4DCD0DB4A81198EBDFF25859D88DEB4E0B155CBB0FC860807", ENDITEM,
.SA-fI
?9v4f HC0 "Name=str2", "Value=0", ENDITEM,51Testing软件测试网S1`)@-lW
"Name=bu", "Value=http://post.baidu.com/f?ct=&tn=&rn=&pn=&lm=&kw=abcd&rs2=0&myselectvalue=1&word=abcd&tb=on", ENDITEM,51Testing软件测试网i7N\8J7`&X;V `pI
"Name=ti", "Value=ffaaa", ENDITEM,51Testing软件测试网)D T"Q5S2O/L#X6x
"Name=co", "Value=ffffaaaa", ENDITEM,51Testing软件测试网r[FUJ3h
"Name=str1", "Value=http://", ENDITEM,51Testing软件测试网dohSa(|
"Name=word1", "Value=ATTT", ENDITEM,
y i:h)P
l1xEO3e0 "Name=Submit3", "Value=发表贴子", ENDITEM,51Testing软件测试网o,nr#?!d4b&Is2Y
LAST);
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nn,C4Yqc"q2@_ web_url("f_3",
y(l[9mx;[0 "URL=http://post.baidu.com/f?ct=&tn=&rn=&pn=&lm=&kw=abcd&rs2=0&myselectvalue=1&word=abcd&tb=on",51Testing软件测试网;f3o
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"Resource=0",51Testing软件测试网 K w7f
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"RecContentType=text/html",
NBQ!G U$ZYg0 "Referer=",51Testing软件测试网,nX/_0^ aT1CR
"Snapshot=t3.inf",51Testing软件测试网iU9n Y
K|0}
"Mode=HTML",51Testing软件测试网3W4F7z1J gVj
LAST);51Testing软件测试网#j-g9n)Q$E9cm
v]-]2va[(C?0 return 0;
E,{`2turvJV)ht0}51Testing软件测试网#M
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=============================================51Testing软件测试网.L"h8sQ,T
实际上我录制的时候是做了2步操作:一是打开abcd吧的主页,二是写入发表的内容后提交
2c6CB/qH5eB4Sv
H0但是录制完成的脚本里呢?
3D:A9k9Ix;l0有3个添加cookie的函数web_add_cookie51Testing软件测试网p6}h4?)xn1rN7K
有2个打开url的地址函数web_url
4h4nV.A!O d0还有1个提交数据的函数web_submit_data51Testing软件测试网+M1VeqI.@)caDH
还有1个时间等待的函数lr_think_time51Testing软件测试网2G6k+\6C2M*P.J#K
m I"w}hR5PJ;w0既然说了要精简脚本,那么怎么精简呢??其实很简单,把这些函数依次注释掉,然后查看回放是否成功就OK了。51Testing软件测试网){-CU'h'vYV
如果回放成功,那么就说明这个步骤是可以去掉的,当然,回放失败就说明这个函数是必要的。
(yl/Dg.[ O2{051Testing软件测试网,N
^h tu%f%P那么上述脚本我依次进行注释,最后脚本变成了:
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Y0=============================================51Testing软件测试网'K;A
[}.iPff.M
Action()
'?8vlM&}"Z-WM
trZ0{51Testing软件测试网4fEO:n;Mmx1r,y
web_submit_data("f_2",51Testing软件测试网5p\@O0w*g
"Action=http://tieba.baidu.com/f",51Testing软件测试网9X5sy Uh6Ss|g
"Method=POST",
4X'M0P l*]}3N$e0 "RecContentType=text/html",51Testing软件测试网qP?!a(RT.C5L V
"Referer=http://post.baidu.com/f?ct=&tn=&rn=&pn=&lm=&kw=abcd&rs2=0&myselectvalue=1&word=abcd&tb=on",
]D"x7m
y2j0 "Snapshot=t2.inf",51Testing软件测试网M8QkE^jFQ&bB
O
"Mode=HTML",51Testing软件测试网
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{6R
ITEMDATA,51Testing软件测试网d A |y@0@k LlWJ
"Name=ct", "Value=385875968", ENDITEM,51Testing软件测试网`RsdV
q$p5|\!ji
"Name=tn", "Value=baiduSubmitThread", ENDITEM,
9bZF4W"yA0 "Name=word", "Value=abcd", ENDITEM,51Testing软件测试网V)ipyTh9V.@qc6J
"Name=lm", "Value=208401", ENDITEM,51Testing软件测试网+MF-t@{o7s
"Name=z", "Value=0", ENDITEM,51Testing软件测试网r/h'@8KD
SF
"Name=sc", "Value=0", ENDITEM,
z bD%Ry0 "Name=cm", "Value=0", ENDITEM,
)K,eQ ^U7^C9b0 "Name=bs", "Value=F5724DD0BBD0845680CD5CBA80EE8A19B4D5FF28C2B84F5634DEF9DB8FD7EEB7033726F18921F4DCD0DB4A81198EBDFF25859D88DEB4E0B155CBB0FC860807", ENDITEM,
-?3Cg YH0 "Name=str2", "Value=0", ENDITEM,
Yp~$V#F6z9w0 "Name=bu", "Value=http://post.baidu.com/f?ct=&tn=&rn=&pn=&lm=&kw=abcd&rs2=0&myselectvalue=1&word=abcd&tb=on", ENDITEM,51Testing软件测试网 R&ULMg${
"Name=ti", "Value=test_first", ENDITEM, //标题51Testing软件测试网 l5V'rx$T2i*I[qk1C_
"Name=co", "Value=test_first", ENDITEM, //内容
#p6E vV-VR0 "Name=str1", "Value=http://", ENDITEM, //图片地址51Testing软件测试网1W ~8L t6r"I+~A
"Name=word1", "Value=ATTT", ENDITEM, //验证码51Testing软件测试网3q0V
C6MBp:{
"Name=Submit3", "Value=发表贴子", ENDITEM,
9o)O-I/yA%GS0 LAST);
|A(~'z9Y/z.`+{0 return 0;
JbH h%g"jr6Us2E0}
E1}
qXa ut0【需要注意,百度贴吧应该有发帖时间限制,回放的时候尽量间隔一段时间;另外,不要关闭录制脚本打开的那个ie窗口】51Testing软件测试网2t-Y p j
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居然仍然可以回放成功,当然我修改了web_submin_data函数的2个字段:ti(标题)和co(内容)来区分效果,回放成功以后,我就用IE去刷新查看,发现帖真的发出去了!!51Testing软件测试网
Z7Y+Vt$k j
到这里我就爆汗了~!居然可以输入错误的验证码发帖!!应该是属于一个bug!!!
L(z5n&g5j_5F8xJL;J051Testing软件测试网?aR@ G8H(P大家都应该知道,验证码的作用;但是百度贴吧怎么会有这个bug呢?51Testing软件测试网-}|,c6g0m2['U \uf
1、我把录制脚本时的IE关掉,再回放,发现回放成功,但是新帖发不出来了
U4nTX
vWC"G`0到这里我就确定,只要录制完成的那个页面不关掉,那么就可以一直忽略验证码回放成功!!51Testing软件测试网t}};w
V5}t
=============================================
d QB"Ddz1P e0 \o
_SynC051Testing软件测试网!@ S1q.l#x a4Qt0az
上面只是一个例子,说明这个实例,可以只用一个web_submin_data来提交数据就可以,其余的都可以忽略
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KSPnq-b'O0所以,压力测试的负载生成就只是负载生成而已,只要生成正确的负载,就不需要管用什么脚本了,嘿嘿
GV@e.{06nli1?QY6CnTN0当然,有前后需要关联的,不能精简脚本。51Testing软件测试网&a.T(_9g
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51Testing软件测试网;A!G.v,YL?抛砖引玉啊,抛砖引玉。个人水平就到这里,希望大家多多交流。
UB(B-[~4R07gy7x`|0e0QQ:410225 MSN:qiguojie at hotmail dot com51Testing软件测试网G)Z(R k5r6gpJk