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From: Zhaoxia Yang <yangzhaoxia@gmail.com>
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Subject: Random function in for loop doesn't work as expected
Message-Id: <835FAD2C-60EB-4B8C-9077-A49987C2F484@gmail.com>
Date: Mon, 29 Oct 2012 15:47:05 +1100
To: user@jmeter.apache.org
Mime-Version: 1.0 (Mac OS X Mail 6.0 \(1485\))

Hi,

I have below script in post or pre processor of JMeter. I want the =
Strings are generated randomly for each loop.

for(i=3D0;i<5;i++)
{
  var rdStrA=3D"${__RandomString(5,abcdefghijklmnopqrstuvwxyz)}";
  var rdStrB=3D"${__RandomString(5,abcdefghijklmnopqrstuvwxyz)}";
 vars.put("rdStrA"+i, rdStrA);
 vars.put("rdStrB"+i, rdStrB);
}

The result is:
For the 5 times loop, rdStrAs are always same, rdStrB is different from =
rdStrA but 5 rdStrBs are same.

The response data of Debug Sampler shows:
...
rdStrA0=3Dcnbyw
rdStrA1=3Dcnbyw
rdStrA2=3Dcnbyw
rdStrA3=3Dcnbyw
rdStrA4=3Dcnbyw
rdStrB0=3Dbomad
rdStrB1=3Dbomad
rdStrB2=3Dbomad
rdStrB3=3Dbomad
rdStrB4=3Dbomad

This is really odd.
I also tried __Random(min,max) to generate random integer inside for =
loop, it also performs the same way.

Thanks.

Zhaoxia Yang=

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