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/*
* Copyright 2016-2019 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 org.junit.Test
import kotlin.test.*
@Suppress("UNREACHABLE_CODE", "UNUSED", "UNUSED_PARAMETER")
class StackTraceRecoveryCustomExceptionsTest : TestBase() {
internal class NonCopyable(val customData: Int) : Throwable() {
// Bait
public constructor(cause: Throwable) : this(42)
}
internal class Copyable(val customData: Int) : Throwable(), CopyableThrowable<Copyable> {
// Bait
public constructor(cause: Throwable) : this(42)
override fun createCopy(): Copyable {
val copy = Copyable(customData)
copy.initCause(this)
return copy
}
}
@Test
fun testStackTraceNotRecovered() = runTest {
try {
withContext(wrapperDispatcher(coroutineContext)) {
throw NonCopyable(239)
}
expectUnreached()
} catch (e: NonCopyable) {
assertEquals(239, e.customData)
assertNull(e.cause)
}
}
@Test
fun testStackTraceRecovered() = runTest {
try {
withContext(wrapperDispatcher(coroutineContext)) {
throw Copyable(239)
}
expectUnreached()
} catch (e: Copyable) {
assertEquals(239, e.customData)
val cause = e.cause
assertTrue(cause is Copyable)
assertEquals(239, cause.customData)
}
}
internal class WithDefault(message: String = "default") : Exception(message)
@Test
fun testStackTraceRecoveredWithCustomMessage() = runTest {
try {
withContext(wrapperDispatcher(coroutineContext)) {
throw WithDefault("custom")
}
expectUnreached()
} catch (e: WithDefault) {
assertEquals("custom", e.message)
val cause = e.cause
assertTrue(cause is WithDefault)
assertEquals("custom", cause.message)
}
}
}
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