Any idea how to pass gradle parameters to tests?

./gradlew -DproxySet=true -Dhttp.proxyHost=127.0.0.1 -Dhttp.proxyPort=8080 -Dhttps.proxyHost=127.0.0.1 -Dhttps.proxyPort=8080 -Pasdfproxy=asdf :phoenix:testDebugUnitTest --tests PropTest

class PropTest: StringSpec({
    "props" {
        System.getProperties().keys
            .filterIsInstance<String>()
            .filter { it.contains("proxy", true) }
            .also { println(it) }
            .shouldNotBeEmpty()
    }
})

And this test is failing.

You need to explicitly pass them to Test task sytem properties, because test task runs on forked JVM instance and not the one gradle itself is using.

or use env variables instead of properties

I don't think env variables are passed in to test fork either

I use them for that all the time so i think they are.