How to enable assertions in Kotlin?

Question

I've created sample class to test assertions in Kotlin

class Assertion {
    fun sum(a: Int, b: Int): Int {
        assert(a > 0 && b > 0)
        return a + b
    }
}

fun main(args: Array<String>) {
    Assertion().sum(-1, 2)
}

and was using the following options but the program doesn't throw assert exception.

-ea:AssertionKt, -ea:Assertion and -ea:...

Answer 1

To enable assertions in Kotlin, run the JVM with the -ea option, without any additional specifiers.