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/*
* Copyright 2016-2021 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 java.io.*
import kotlin.coroutines.*
import kotlin.test.*
@Suppress("DEPRECATION")
class SuppressionTests : TestBase() {
@Test
fun testNotificationsWithException() = runTest {
expect(1)
val coroutineContext = kotlin.coroutines.coroutineContext + NonCancellable // workaround for KT-22984
val coroutine = object : AbstractCoroutine<String>(coroutineContext, true, false) {
override fun onStart() {
expect(3)
}
override fun onCancelling(cause: Throwable?) {
assertTrue(cause is ArithmeticException)
assertTrue(cause.suppressed.isEmpty())
expect(5)
}
override fun onCompleted(value: String) {
expectUnreached()
}
override fun onCancelled(cause: Throwable, handled: Boolean) {
assertTrue(cause is ArithmeticException)
checkException<IOException>(cause.suppressed[0])
expect(8)
}
}
coroutine.invokeOnCompletion(onCancelling = true) {
assertTrue(it is ArithmeticException)
assertTrue(it.suppressed.isEmpty())
expect(6)
}
coroutine.invokeOnCompletion {
assertTrue(it is ArithmeticException)
checkException<IOException>(it.suppressed[0])
expect(9)
}
expect(2)
coroutine.start()
expect(4)
coroutine.cancelInternal(ArithmeticException())
expect(7)
coroutine.resumeWithException(IOException())
finish(10)
}
@Test
fun testExceptionUnwrapping() = runTest {
val channel = Channel<Int>()
val deferred = async(NonCancellable) {
launch {
while (true) channel.send(1)
}
launch {
val exception = RecoverableTestCancellationException()
channel.cancel(exception)
throw exception
}
}
try {
deferred.await()
} catch (e: RecoverableTestException) {
assertTrue(e.suppressed.isEmpty())
assertTrue(e.cause!!.suppressed.isEmpty())
}
}
}
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