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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 kotlin.test.*
class NonCancellableTest : TestBase() {
@Test
fun testNonCancellable() = runTest {
expect(1)
val job = async {
withContext(NonCancellable) {
expect(2)
yield()
expect(4)
}
expect(5)
yield()
expectUnreached()
}
yield()
job.cancel()
expect(3)
assertTrue(job.isCancelled)
try {
job.await()
expectUnreached()
} catch (e: CancellationException) {
assertNull(e.cause)
finish(6)
}
}
@Test
fun testNonCancellableWithException() = runTest {
expect(1)
val deferred = async(NonCancellable) {
withContext(NonCancellable) {
expect(2)
yield()
expect(4)
}
expect(5)
yield()
expectUnreached()
}
yield()
deferred.cancel(TestException())
expect(3)
assertTrue(deferred.isCancelled)
try {
deferred.await()
expectUnreached()
} catch (e: TestException) {
finish(6)
}
}
@Test
fun testNonCancellableFinally() = runTest {
expect(1)
val job = async {
try {
expect(2)
yield()
expectUnreached()
} finally {
withContext(NonCancellable) {
expect(4)
yield()
expect(5)
}
}
expectUnreached()
}
yield()
job.cancel()
expect(3)
assertTrue(job.isCancelled)
try {
job.await()
expectUnreached()
} catch (e: CancellationException) {
finish(6)
}
}
@Test
fun testNonCancellableTwice() = runTest {
expect(1)
val job = async {
withContext(NonCancellable) {
expect(2)
yield()
expect(4)
}
withContext(NonCancellable) {
expect(5)
yield()
expect(6)
}
}
yield()
job.cancel()
expect(3)
assertTrue(job.isCancelled)
try {
job.await()
expectUnreached()
} catch (e: CancellationException) {
assertNull(e.cause)
finish(7)
}
}
}
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