Kotlin Coroutines 1.6: run blocking test, but cancel scope at exit without caring about endless-running jobs

RunBlockingTest.kt

fun TestCoroutineScope.runBlockingTest(
    testBody: suspend TestCoroutineScope.() -> Unit,
) {
    val regularEndOfTest = CancellationException()
    try {
        this.runBlockingTestKotlin { // import kotlinx.coroutines.test.runBlockingTest as runBlockingTestKotlin
            testBody()
            cancel(regularEndOfTest)
        }
    } catch (e: CancellationException) {
        if (e !== regularEndOfTest) {
            throw e
        }
    }
}