Thanks for your reply, Sebb.
As you mentioned, the code is not correct, actually it should be
Math.random(), I made a spell mistake in the email.
sebb wrote:
n 29/11/2007, dennis <[EMAIL PROTECTED]> wrote:
Hi all,
I have a test plan which uses "switch controller" to distribute load to
2 HTTP request.
My test plan looks like this:
Thread Group
-User Defined Variables
Probably unnecessary.
-Beanshell Sampler
-Java request
-Switch Controller
-HTTP Sampler1
-HTTP Sampler2
1, In "User Defined Variables", I defined a variable named "RAND";
2, In Beanshell Sampler, code generated a random 0 or 1, then put the
value to ${RAND}.
int r = Math.rand()*10;
if(r<5) vars.put("RAND", "0");
else vars.put("RAND", "1");
Are you sure about that code? Does not work for me, as Math.rand()
does not exist and Math.random() returns a double, not an int.
3, Switch Controller used {$RAND} as its switch value.
4, The Java request is used to monitor the value generated by Beanshell
script, so I just set Label as "RAND=${RAND}".
When run the test plan, I set 10 thread to run 100 loops, what
surprised me is the summary result:
Label #Samples ...
RAND=0 526
RAND=1 474
HTTP Sampler1 532
HTTP Sampler2 468
What I expected is the #samples of "RAND=0" and "HTTP Sampler1" are the
same, while the #samplers of "RAND=1" and "HTTP Sampler2" are the same.
Can anyone explain it?
I think it is due to timing - it looks as though the Switch Controller
is evaluating the RAND variable before it gets reset by BeanShell. To
check this, you can use the __log() function, i.e. use
${__log(${RAND})}
as the Switch value.
If you omit the UDV, you will see that the RAND variable is not
defined the first time round - and will be taken as 0.
Looks like there might be a bug here ...
Thanks,
Dennis
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