On 17/12/2009, Deepak Shetty <[email protected]> wrote: > hi > (one of) Your original question was why your debug sampler seemed to > interfere with your test. The answer is because your post processor is > attached as the child of the while controller, which means it would apply to > every sampler which is a child of the while controller (in your case Child 1 > and the debug sampler under the while) and it will also apply to the > children of the for-each controller > Look at the scope rules in JMeter documents. > If you want your post processor to execute only once , you should create a > Test Action controller as the last sample in the While Controller and create > the post processor as the child of the Test Action. (It is probably easier > to just use the Counter)
Or just use a BeanShell Sampler to do the arithmetic. If you end the script with "return null;" then no sample will be created. Or you can use the __intSum() function. > You are getting incorrect values because your counter variable i is being > incremented too many times. > regards > > deepak > > > > On Thu, Dec 17, 2009 at 1:01 AM, rosiere <[email protected]> wrote: > > > > > Hello, > > I didn't use counter. > > This is my last test sequence: > > -- http request sampler reading the list of pages > > |--> child: regex extractor to extract the total of pages, into a > > variable numPageMaxi > > > > -- while controller: ${__javaScript( ${i} < ${numPageMaxi} )} > > |--> child 1: http request sampler to turn to the next (it takes > > parameters like ${__javaScript(${i} * 50)}, ${__javaScript(${i} * 50 + > > 50)}, for lower bound and upper bound) > > > > |--> regex extractor to parse <tr> elements into an array: > > htmlResponse > > > > > > |--> child 2: foreach controller on ${htmlResponse} > > |--> http request sampler that sends extracted <tr> elements > > to a remote server > > > > > > |--> child 3: BeanShell Post Processor that increments my own counter > > variable i, with the following code: > > String i = vars.get("i"); > > int counter = Integer.parseInt(i); > > counter++; > > vars.put("i", "" + counter); > > > > > > My BeanShell Postprocessor is a child of the while() controller that runs > > over the 2 pages, and not of the foreach() controller that runs over <tr> > > elements of each page. > > > > However even if I put the postprocessor in front of foreach(), my scenario > > yields still the wrong results (it takes the foreach()'s upper bound as my > > ${i}'s upper bound. > > > > I will try Counter instead of my own variable incremented by beanshell and > > see if it works better. > > > > > > Deepak Shetty wrote: > > > > > > Hi > > > whats your test look like? Its possible that you put the post processor > > in > > > the wrong place? was it a child of the for each instead of the sample or > > > something? > > > > > > Also FYI > > > > > > http://jakarta.apache.org/jmeter/usermanual/component_reference.html#Counter > > > > > > regards > > > deepak > > > > > > > > > On Wed, Dec 16, 2009 at 10:22 AM, rosiere <[email protected]> > > wrote: > > > > > >> > > >> Hello, > > >> > > >> I'm also facing problems with while controller, especially with its loop > > >> counter and an embedded foreach controller. > > >> > > >> I would like to go through a list of paginated result (like google's > > >> search > > >> result), and use a regex to parse every page. > > >> > > >> So I first parsed the list page and found the greatest page number (say > > >> 2). > > >> Then I defined a while controller with this condition: > > >> ${__javaScript( ${i} < ${numPageMaxi} )} (i is a predefined user > > >> variable, > > >> initialized to 0) > > >> Then, inside my while controller, I identified HTTP request's format > > >> (parameter) needed to view each page (for example, page 1 needs 0, 50 ; > > >> page 2 needs 50, 100 , and so on ) and I created an HTTP request sampler > > >> with these 2 parameters: > > >> > > >> ${__javaScript(${i} * 50)} (for lower bound) > > >> ${__javaScript(${i} *50 + 50)} (for upper bound) > > >> > > >> After the sampler I created a Debug Sampler to view the variables, > > >> including > > >> my counter "i". > > >> Afther the debug sampler, I used a BeanShell PostProcessor to increment > > >> i: > > >> String i = vars.get("i"); > > >> int counter = Integer.parseInt(i); > > >> counter++; > > >> vars.put("i", "" + counter); > > >> > > >> My problem is that the http request sampler (that took upperbound and > > >> lowerbound computed from iteration counter i)ran only once with > > >> upperbound > > >> to 50 and lowerbound to 0, instead of twice even though I did get the > > >> total > > >> number of pages (2) and my PostProcessor ran twice. > > >> > > >> In order to fully iterate the pages I had to disable the Debug Sampler > > >> behind the http sampler. > > >> > > >> Could you please tell me why my debug sampler interferes with other > > >> samplers > > >> and the iteration counter? > > >> Thanks. > > >> > > >> > > >> > > >> > > >> sebb-2-2 wrote: > > >> > > > >> > See > > >> > > > >> > > > >> > > > http://jakarta.apache.org/jmeter/usermanual/component_reference.html#While_Controller > > >> > > > >> > The While Controller condition needs to return the string "FALSE" or > > >> > "false" in order to exit the loop. > > >> > > > >> > ${counter}<3 > > >> > > > >> > will never be "false" > > >> > > > >> > it will be perhaps "0<3" or "1<3" or "100<3" etc > > >> > > > >> > "You need to use a Javascript or Beanshell function to evaluate the > > >> > string as an expression." > > >> > > > >> > S > > >> > On 24/08/05, Anton Andreev <[email protected]> wrote: > > >> >> Hello everybody, > > >> >> > > >> >> I'm trying to set up a counter to be used with while > > >> >> controller and i'm having dificulty (my while loop > > >> >> does not stop). What i did, just before while > > >> >> controller i have "user variables" where i set > > >> >> {counter} to 0. In while controller my condition is > > >> >> ${counter}<3 and i have counter (name {counter}, just > > >> >> like user var) inside the loop which starts from 1 and > > >> >> increments by 1 till 4. My while loop does not stop. > > >> >> Please tell me what i'm doing wrong or if i have to > > >> >> use something else to accomplish what i'm trying to > > >> >> do. > > >> >> > > >> >> Thank you, > > >> >> > > >> >> Anton Andreev > > >> >> > > >> >> > > >> >> > > >> >> > > >> >> > > >> >> > > >> >> __________________________________________________________ > > >> >> Find your next car at http://autos.yahoo.ca > > >> >> > > >> >> --------------------------------------------------------------------- > > >> >> To unsubscribe, e-mail: [email protected] > > >> >> For additional commands, e-mail: [email protected] > > >> >> > > >> >> > > >> > > > >> > --------------------------------------------------------------------- > > >> > To unsubscribe, e-mail: [email protected] > > >> > For additional commands, e-mail: [email protected] > > >> > > > >> > > > >> > > > >> > > >> -- > > >> View this message in context: > > >> > > > http://old.nabble.com/using-counter-with-while-controller-tp702190p26815923.html > > >> Sent from the JMeter - User mailing list archive at Nabble.com. > > >> > > >> > > >> --------------------------------------------------------------------- > > >> To unsubscribe, e-mail: [email protected] > > >> For additional commands, e-mail: [email protected] > > >> > > >> > > > > > > > > > > -- > > View this message in context: > > > http://old.nabble.com/using-counter-with-while-controller-tp702190p26825058.html > > Sent from the JMeter - User mailing list archive at Nabble.com. > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [email protected] > > For additional commands, e-mail: [email protected] > > > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
