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/*
* Copyright (C) 2016 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package okio
import java.io.InterruptedIOException
import java.util.concurrent.TimeUnit
import okio.TestUtil.assumeNotWindows
import okio.TestingExecutors.newScheduledExecutorService
import org.junit.After
import org.junit.Assert.assertEquals
import org.junit.Assert.assertTrue
import org.junit.Assert.fail
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.Parameterized
import org.junit.runners.Parameterized.Parameters
@RunWith(Parameterized::class)
class WaitUntilNotifiedTest(
factory: TimeoutFactory,
) {
private val timeout = factory.newTimeout()
private val executorService = newScheduledExecutorService(0)
@After
fun tearDown() {
executorService.shutdown()
}
@Test
@Synchronized
fun notified() {
timeout.timeout(5000, TimeUnit.MILLISECONDS)
val start = now()
executorService.schedule(
{
synchronized(this@WaitUntilNotifiedTest) {
(this as Object).notify()
}
},
1000,
TimeUnit.MILLISECONDS,
)
timeout.waitUntilNotified(this)
assertElapsed(1000.0, start)
}
@Test
@Synchronized
fun timeout() {
assumeNotWindows()
timeout.timeout(1000, TimeUnit.MILLISECONDS)
val start = now()
try {
timeout.waitUntilNotified(this)
fail()
} catch (expected: InterruptedIOException) {
assertEquals("timeout", expected.message)
}
assertElapsed(1000.0, start)
}
@Test
@Synchronized
fun deadline() {
assumeNotWindows()
timeout.deadline(1000, TimeUnit.MILLISECONDS)
val start = now()
try {
timeout.waitUntilNotified(this)
fail()
} catch (expected: InterruptedIOException) {
assertEquals("timeout", expected.message)
}
assertElapsed(1000.0, start)
}
@Test
@Synchronized
fun deadlineBeforeTimeout() {
assumeNotWindows()
timeout.timeout(5000, TimeUnit.MILLISECONDS)
timeout.deadline(1000, TimeUnit.MILLISECONDS)
val start = now()
try {
timeout.waitUntilNotified(this)
fail()
} catch (expected: InterruptedIOException) {
assertEquals("timeout", expected.message)
}
assertElapsed(1000.0, start)
}
@Test
@Synchronized
fun timeoutBeforeDeadline() {
assumeNotWindows()
timeout.timeout(1000, TimeUnit.MILLISECONDS)
timeout.deadline(5000, TimeUnit.MILLISECONDS)
val start = now()
try {
timeout.waitUntilNotified(this)
fail()
} catch (expected: InterruptedIOException) {
assertEquals("timeout", expected.message)
}
assertElapsed(1000.0, start)
}
@Test
@Synchronized
fun deadlineAlreadyReached() {
assumeNotWindows()
timeout.deadlineNanoTime(System.nanoTime())
val start = now()
try {
timeout.waitUntilNotified(this)
fail()
} catch (expected: InterruptedIOException) {
assertEquals("timeout", expected.message)
}
assertElapsed(0.0, start)
}
@Test
@Synchronized
fun threadInterrupted() {
assumeNotWindows()
val start = now()
Thread.currentThread().interrupt()
try {
timeout.waitUntilNotified(this)
fail()
} catch (expected: InterruptedIOException) {
assertEquals("interrupted", expected.message)
assertTrue(Thread.interrupted())
}
assertElapsed(0.0, start)
}
@Test
@Synchronized
fun threadInterruptedOnThrowIfReached() {
assumeNotWindows()
Thread.currentThread().interrupt()
try {
timeout.throwIfReached()
fail()
} catch (expected: InterruptedIOException) {
assertEquals("interrupted", expected.message)
assertTrue(Thread.interrupted())
}
}
@Test
@Synchronized
fun cancelBeforeWaitDoesNothing() {
assumeNotWindows()
timeout.timeout(1000, TimeUnit.MILLISECONDS)
timeout.cancel()
val start = now()
try {
timeout.waitUntilNotified(this)
fail()
} catch (expected: InterruptedIOException) {
assertEquals("timeout", expected.message)
}
assertElapsed(1000.0, start)
}
@Test
@Synchronized
fun canceledTimeoutDoesNotThrowWhenNotNotifiedOnTime() {
timeout.timeout(1000, TimeUnit.MILLISECONDS)
timeout.cancelLater(500)
val start = now()
timeout.waitUntilNotified(this) // Returns early but doesn't throw.
assertElapsed(1000.0, start)
}
@Test
@Synchronized
fun multipleCancelsAreIdempotent() {
timeout.timeout(1000, TimeUnit.MILLISECONDS)
timeout.cancelLater(250)
timeout.cancelLater(500)
timeout.cancelLater(750)
val start = now()
timeout.waitUntilNotified(this) // Returns early but doesn't throw.
assertElapsed(1000.0, start)
}
/** Returns the nanotime in milliseconds as a double for measuring timeouts. */
private fun now(): Double {
return System.nanoTime() / 1000000.0
}
/**
* Fails the test unless the time from start until now is duration, accepting differences in
* -50..+450 milliseconds.
*/
private fun assertElapsed(duration: Double, start: Double) {
assertEquals(duration, now() - start - 200.0, 250.0)
}
private fun Timeout.cancelLater(delay: Long) {
executorService.schedule(
{
cancel()
},
delay,
TimeUnit.MILLISECONDS,
)
}
companion object {
@Parameters(name = "{0}")
@JvmStatic
fun parameters(): List<Array<out Any?>> = TimeoutFactory.entries.map { arrayOf(it) }
}
}
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