Why JMeter varibles aren't set from JSR223 Groovy Assertion?

Question

I'm trying to set Jmeter variables extracted from Jmeter properties inside JSR223 Groovy Assertion.

Jmeter properties in which I'm interested looks like:

...
created_blob_A_6= fde65de0-3e32-11e8-a5b4-3906549016d8
created_blob_A_8= fef92d70-3e32-11e8-a5b4-3906549016d8
created_blob_A_9= ff775e20-3e32-11e8-bac3-e51250ffea15
created_blob_B_1= fd7302a0-3e32-11e8-a5b4-3906549016d8
created_blob_B_10= 00141350-3e33-11e8-bac3-e51250ffea15
...

In order to extract values from Jmeter properties, I've created JSR223 Groovy the following Assertion script:

def readParamPrefix = 'created_blob'
def writeParamPrefix = 'blob_to_delete'
def chucnkTypes = 'A'..'E'
def newBlobCounter = 1

chucnkTypes.each{ chunkLetter ->
    (1..10).each{ streamNumber ->
        String readParamName = readParamPrefix + '_' + chunkLetter + '_' + streamNumber
        log.info('Read param name: ' + readParamName)
        String writeParamName = writeParamPrefix + '_' + newBlobCounter
        log.info('Write param name: ' + writeParamName)
        String blob_id_to_delete = props.get(readParamName).toString().trim()
        log.info('' + readParamName + ' => ' + writeParamName + ' (' + blob_id_to_delete + ')')
        vars.put(writeParamName.toString(), blob_id_to_delete.toString())
        newBlobCounter++
    }
}

The script doesn't work for JMeter variables, but works fine for JMeter properties. Here is how JMeter properies look like:

JMeterProperties:
...
blob_to_delete_1=9b1c4f40-3e36-11e8-a5b4-3906549016d8
blob_to_delete_10=9da5e050-3e36-11e8-bac3-e51250ffea15
blob_to_delete_11=9b235420-3e36-11e8-bac3-e51250ffea15
blob_to_delete_50=9b656630-3e36-11e8-bac3-e51250ffea15

Could you tell me, how I can fix my code for setting up JMeter variables correctly?

score 0 · Answer 1 · answered Apr 12 '18 at 11:05

0

Don't use ${varName} in scripts, Notice JSR223 Best Practices:

ensure the script does not use any variable using ${varName} as caching would take only first value of ${varName}. Instead use : vars.get("varName") You can also pass them as Parameters to the script and use them this way.

After you change it, look for errors in logs if it still doesn't works

answered Apr 12 '18 at 11:05

Ori Marko

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I removed all dollar signs ($) before variable names, it didn't help. Also, there are no errors in JMeter logs – Eugene Apr 12 '18 at 11:39
@Eugene you should not remove $ sign, it should be converted to `vars.get("varName")` – Ori Marko Apr 12 '18 at 11:41

score 0 · Accepted Answer · answered Apr 16 '18 at 15:29

I don't see any problem with your code:

So I would recommend:

Checking jmeter.log file for any suspicious entries
Checking what variables are defined using Debug Sampler and View Results Tree listener combination. See How to Debug your Apache JMeter Script article for more information on getting to the bottom of JMeter script failure or unexpected behavior.

Why JMeter varibles aren't set from JSR223 Groovy Assertion?

2 Answers2