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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.Test
import java.util.concurrent.Executors
class ExecutorsTest : TestBase() {
private fun checkThreadName(prefix: String) {
val name = Thread.currentThread().name
check(name.startsWith(prefix)) { "Expected thread name to start with '$prefix', found: '$name'" }
}
@Test
fun testSingleThread() {
val context = newSingleThreadContext("TestThread")
runBlocking(context) {
checkThreadName("TestThread")
}
context.close()
}
@Test
fun testFixedThreadPool() {
val context = newFixedThreadPoolContext(2, "TestPool")
runBlocking(context) {
checkThreadName("TestPool")
}
context.close()
}
@Test
fun testToExecutor() {
val executor = Executors.newSingleThreadExecutor { r -> Thread(r, "TestExecutor") }
runBlocking(executor.asCoroutineDispatcher()) {
checkThreadName("TestExecutor")
}
executor.shutdown()
}
@Test
fun testTwoThreads() {
val ctx1 = newSingleThreadContext("Ctx1")
val ctx2 = newSingleThreadContext("Ctx2")
runBlocking(ctx1) {
checkThreadName("Ctx1")
withContext(ctx2) {
checkThreadName("Ctx2")
}
checkThreadName("Ctx1")
}
ctx1.close()
ctx2.close()
}
@Test
fun testShutdownExecutorService() {
val executorService = Executors.newSingleThreadExecutor { r -> Thread(r, "TestExecutor") }
val dispatcher = executorService.asCoroutineDispatcher()
runBlocking (dispatcher) {
checkThreadName("TestExecutor")
}
dispatcher.close()
check(executorService.isShutdown)
}
}
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