How can I run `compilerTest` with a particular number of threads? Passing `-Porg.gradle.parallel=fal...

# kontributors

[Ian Lynagh]

How can I run compilerTest with a particular number of threads? Passing -Porg.gradle.parallel=false, -Dkotlin.test.maxParallelForks=1 and -Porg.gradle.workers.max=1 doesn't seem to be having any effect

[dmitriy.novozhilov]

We use gradle and JUnit 5 parallelization
Check junit properties:
https://github.com/JetBrains/kotlin/blob/master/compiler/tests-common-new/testResources/junit-platform.properties

[Ian Lynagh]

Thanks! I can modify them by changing that file (thus risking committing changes to them accidentally), but I can't see a way to do so via a command line flag to gradle. Is that possible?

[dmitriy.novozhilov]

I never tried, but it looks like you can specify them with -Dorg.prop.name option
https://junit.org/junit5/docs/current/user-guide/#running-tests-config-params

[Ian Lynagh]

That doesn't seem to work; I'm told by someone who understand this far better than I that it's setting the property in the wrong VM. I'll just change the file. Thanks!