doIfOrElse does not execute any of the branches

Gatling (Open-Source)
1

I am trying to do this:

foreach("${foo}", “x”) {
.doIfOrElse(.getVSeq[String].map(.contains("${x}"))) {
chainA
} {
chainB
}
}

However, this causes neither chainA nor chainB to be run. I’m assuming the validation fails, but I’m not getting any error messages. I’m using 2.0-M1. Does anyone know what could be going on here? Should I try again with (what will be) M2?

Stig

2

I’d always expect chainB as your condition can’t evaluate to true.

You can’t use EL inside Expressions. EL are actually implicitly compiled into expressions where required, and contains expect a String, not an Expression.

The safe form is:

foreach("${foo}", “x”) {
doIfOrElse{ session =>
for {
bar ← session.getVSeq[String]
x ← session.getVString
} yield (bar.contains(x))
}
{chainA}
{chainB}
}

The unsafe one:

foreach("${foo}", “x”) {
doIfOrElse{ session =>
val bar = session(“bar”).asInstanceOf[Seq[String]]
val x = session(“x”).asInstanceOf[String]
bar.contains(x)
}
{chainA}
{chainB}
}

I’ll investigate to see if I see a reason why chainB wouldn’t be executed, but that might come from the way you wrote it.

3

This is now my new favourite support forum :slight_smile:
Three right-to-the-point answers in one day - thanks a lot!

Stig

4

You’re welcome.

BTW, there was indeed a bug in 2.0.0-M1 and chainB was indeed ignored.
https://github.com/excilys/gatling/issues/1136

Fixed, thanks for reporting!