Jmeter - How to keep trying the same request until it succeeds

0
votes

So right now I have my http request under a while controller and I have a user defined variable Failure set to true. I would like jmeter to keep trying this request until it succeeded (without returned 500). My while loop condition is: 

${__javaScript(${Failure})}

I also tried ${Failure} as while condition but getting the same result.

And I have a JSR223 Assertion after the result tree as following:

if (ResponseCode.equals("500") == true) {
    vars.put("Failure", true)
}
else { 
    vars.put("Failure", false)
}

When I ran this, I got into infinite loop even my request succeeded. It seems the Failure value was never updated. Any suggestion on this would be appreciated.

2
jmeter

2 Answers

1
votes

This is because you're trying to add a Boolean object into a function which expects a String. In order to be able to store a Boolean value into a JMeter Variable you need to use vars.putObject() function instead like:

vars.putObject("Failure", true)

or surround true with quotation marks so it would look like a String to Groovy:

vars.put("Failure", "true");

  1. Amend your JSR223 Assertion code to look like:

    if (ResponseCode.equals("500")) {
    vars.put("Failure", "true")
}
else { 
    vars.put("Failure", "false")
}

  2. Amend your While Controller condition to be just ${Failure}. Using JavaScript is a form of a performance anti-pattern, if you need to perform some scripting - go for Groovy. In particular your case you can just use ${Failure} variable as the condition given it can be either true or false

0
votes

I finally got it working. In my JSR233 assertion, I updated it to:

if (prev.getResponseCode().equals("500")) {
    vars.put("Failure", "true")
}
else { 
    vars.put("Failure", "false")
}

And it works now.