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/*
* Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
package kotlinx.coroutines
import org.junit.*
import org.junit.Test
import java.util.concurrent.*
import kotlin.test.*
class UnconfinedConcurrentStressTest : TestBase() {
private val threads = 4
private val executor = newFixedThreadPoolContext(threads, "UnconfinedConcurrentStressTest")
private val threadLocal = ThreadLocal<Int>()
@After
fun tearDown() {
executor.close()
}
@Test
fun testConcurrent() = runTest {
val iterations = 1_000 * stressTestMultiplier
val startBarrier = CyclicBarrier(threads + 1)
val finishLatch = CountDownLatch(threads)
repeat(threads) { id ->
launch(executor) {
startBarrier.await()
repeat(iterations) {
threadLocal.set(0)
launch(Dispatchers.Unconfined) {
assertEquals(0, threadLocal.get())
launch(Dispatchers.Unconfined) {
assertEquals(id, threadLocal.get())
}
threadLocal.set(id)
}
}
finishLatch.countDown()
}
}
startBarrier.await()
finishLatch.await()
}
}
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