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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.exceptions
import kotlinx.coroutines.*
import kotlinx.coroutines.channels.*
import org.junit.Test
import kotlin.test.*
class ProduceExceptionsTest : TestBase() {
@Test
fun testFailingProduce() = runTest(unhandled = listOf({ e -> e is TestException })) {
expect(1)
val producer = produce<Int>(Job()) {
expect(2)
try {
yield()
} finally {
expect(3)
throw TestException()
}
}
yield()
producer.cancel()
yield()
finish(4)
}
@Test
fun testSuppressedExceptionUncaught() =
runTest(unhandled = listOf({ e -> e is TestException && e.suppressed[0] is TestException2 })) {
val produce = produce<Int>(Job()) {
launch(start = CoroutineStart.ATOMIC) {
throw TestException()
}
try {
delay(Long.MAX_VALUE)
} finally {
throw TestException2()
}
}
yield()
produce.cancel()
}
@Test
fun testSuppressedException() = runTest {
val produce = produce<Int>(Job()) {
launch(start = CoroutineStart.ATOMIC) {
throw TestException()
}
try {
delay(Long.MAX_VALUE)
} finally {
throw TestException2()
}
}
try {
produce.receive()
expectUnreached()
} catch (e: TestException) {
assertTrue(e.suppressed[0] is TestException2)
}
}
@Test
fun testCancelProduceChannel() = runTest {
var channel: ReceiveChannel<Int>? = null
channel = produce {
expect(2)
channel!!.cancel()
try {
send(1)
} catch (e: ClosedSendChannelException) {
expect(3)
throw e
}
}
expect(1)
yield()
try {
channel.receive()
} catch (e: ClosedReceiveChannelException) {
assertTrue(e.suppressed.isEmpty())
finish(4)
}
}
@Test
fun testCancelProduceChannelWithException() = runTest {
var channel: ReceiveChannel<Int>? = null
channel = produce(NonCancellable) {
expect(2)
channel!!.cancel(TestException())
try {
send(1)
// Not a ClosedForSendException
} catch (e: TestException) {
expect(3)
throw e
}
}
expect(1)
yield()
try {
channel.receive()
} catch (e: TestException) {
assertTrue(e.suppressed.isEmpty())
finish(4)
}
}
@Test
fun testCancelChannelWithJob() = runTest {
val job = Job()
val channel = produce(job) {
expect(2)
job.cancel()
try {
send(1)
} catch (e: CancellationException) {
expect(3)
throw e
}
}
expect(1)
yield()
try {
channel.receive()
} catch (e: CancellationException) {
assertTrue(e.suppressed.isEmpty())
finish(4)
}
}
@Test
fun testCancelChannelWithJobWithException() = runTest {
val job = Job()
val channel = produce(job) {
expect(2)
job.cancel(TestException2())
try {
send(1)
} catch (e: CancellationException) { // Not a TestException2
expect(3)
throw e
}
}
expect(1)
yield()
try {
channel.receive()
} catch (e: TestException2) {
finish(4)
}
}
}
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