performance - Unable to evaluate EL while creating Gatling scenario -


i creating scenario repeat block. need index based request generated.

def scnwithloop() = scenario("scenarioname").repeat(counter, "counter") {     exec (session => {     val index: integer = integer.getinteger(session.attributes.get("counter").get.tostring());     session.set("index", index)     session })  exec(       http("scenarioname")         .post(contextpath)         .headers(headers)         .body(stringbody(getdata("${index}".toint)))         .check(status.in(expectedcodes))     ).pause(20 seconds) }

but doesn't evaluate el ${index} , gives me error: 

caused by: java.lang.numberformatexception: input string: "${index}"

gatling version: 2.0.0-m3a

appreciate help!!!

convenient interpolation of session values "${index}" works when string implicitly converted gatling's expression. dark magic of scala broken expression "${index}".toint. have work gatling's session explicitly, per the session el documentation :

....

for example, queryparam("latitude", "${latitude}".toint + 24) won’t work, program blow on "${latitude}".toint string can’t parsed int.

the solution here pass function:

session => session("latitude").validate[int].map(i => + 24).


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