| /* |
| * Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license. |
| */ |
| |
| package kotlinx.coroutines.debug |
| |
| import kotlinx.coroutines.* |
| import org.junit.Test |
| import kotlin.coroutines.* |
| import kotlin.test.* |
| |
| class CoroutinesDumpTest : DebugTestBase() { |
| private val monitor = Any() |
| |
| @Test |
| fun testSuspendedCoroutine() = synchronized(monitor) { |
| val deferred = GlobalScope.async { |
| sleepingOuterMethod() |
| } |
| |
| awaitCoroutineStarted() |
| Thread.sleep(100) // Let delay be invoked |
| verifyDump( |
| "Coroutine \"coroutine#1\":DeferredCoroutine{Active}@1e4a7dd4, state: SUSPENDED\n" + |
| "\tat kotlinx.coroutines.debug.CoroutinesDumpTest.sleepingNestedMethod(CoroutinesDumpTest.kt:95)\n" + |
| "\tat kotlinx.coroutines.debug.CoroutinesDumpTest.sleepingOuterMethod(CoroutinesDumpTest.kt:88)\n" + |
| "\t(Coroutine creation stacktrace)\n" + |
| "\tat kotlin.coroutines.intrinsics.IntrinsicsKt__IntrinsicsJvmKt.createCoroutineUnintercepted(IntrinsicsJvm.kt:116)\n" + |
| "\tat kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:23)\n" + |
| "\tat kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:99)\n") |
| |
| val found = DebugProbes.dumpCoroutinesInfo().single { it.job === deferred } |
| assertSame(deferred, found.job) |
| runBlocking { deferred.cancelAndJoin() } |
| } |
| |
| @Test |
| fun testRunningCoroutine() = synchronized(monitor) { |
| val deferred = GlobalScope.async { |
| activeMethod(shouldSuspend = false) |
| assertTrue(true) |
| } |
| |
| awaitCoroutineStarted() |
| verifyDump( |
| "Coroutine \"coroutine#1\":DeferredCoroutine{Active}@227d9994, state: RUNNING (Last suspension stacktrace, not an actual stacktrace)\n" + |
| "\t(Coroutine creation stacktrace)\n" + |
| "\tat kotlin.coroutines.intrinsics.IntrinsicsKt__IntrinsicsJvmKt.createCoroutineUnintercepted(IntrinsicsJvm.kt:116)\n" + |
| "\tat kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:23)\n" + |
| "\tat kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:99)\n" + |
| "\tat kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:148)\n" + |
| "\tat kotlinx.coroutines.BuildersKt__Builders_commonKt.async(Builders.common.kt)\n" + |
| "\tat kotlinx.coroutines.BuildersKt.async(Unknown Source)\n" + |
| "\tat kotlinx.coroutines.BuildersKt__Builders_commonKt.async\$default(Builders.common.kt)\n" + |
| "\tat kotlinx.coroutines.BuildersKt.async\$default(Unknown Source)\n" + |
| "\tat kotlinx.coroutines.debug.CoroutinesDumpTest.testRunningCoroutine(CoroutinesDumpTest.kt:49)") |
| runBlocking { deferred.cancelAndJoin() } |
| } |
| |
| @Test |
| fun testRunningCoroutineWithSuspensionPoint() = synchronized(monitor) { |
| val deferred = GlobalScope.async { |
| activeMethod(shouldSuspend = true) |
| yield() // tail-call |
| } |
| |
| awaitCoroutineStarted() |
| Thread.sleep(10) |
| verifyDump( |
| "Coroutine \"coroutine#1\":DeferredCoroutine{Active}@1e4a7dd4, state: RUNNING\n" + |
| "\tat java.lang.Thread.sleep(Native Method)\n" + |
| "\tat kotlinx.coroutines.debug.CoroutinesDumpTest.nestedActiveMethod(CoroutinesDumpTest.kt:111)\n" + |
| "\tat kotlinx.coroutines.debug.CoroutinesDumpTest.activeMethod(CoroutinesDumpTest.kt:106)\n" + |
| "\t(Coroutine creation stacktrace)\n" + |
| "\tat kotlin.coroutines.intrinsics.IntrinsicsKt__IntrinsicsJvmKt.createCoroutineUnintercepted(IntrinsicsJvm.kt:116)\n" + |
| "\tat kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:23)\n" + |
| "\tat kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:99)\n" + |
| "\tat kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:148)\n" + |
| "\tat kotlinx.coroutines.BuildersKt__Builders_commonKt.async(Builders.common.kt)\n" + |
| "\tat kotlinx.coroutines.BuildersKt.async(Unknown Source)\n" + |
| "\tat kotlinx.coroutines.BuildersKt__Builders_commonKt.async\$default(Builders.common.kt)\n" + |
| "\tat kotlinx.coroutines.BuildersKt.async\$default(Unknown Source)\n" + |
| "\tat kotlinx.coroutines.debug.CoroutinesDumpTest.testRunningCoroutineWithSuspensionPoint(CoroutinesDumpTest.kt:71)" |
| ) |
| runBlocking { deferred.cancelAndJoin() } |
| } |
| |
| @Test |
| fun testCreationStackTrace() = synchronized(monitor) { |
| val deferred = GlobalScope.async { |
| activeMethod(shouldSuspend = true) |
| } |
| |
| awaitCoroutineStarted() |
| val coroutine = DebugProbes.dumpCoroutinesInfo().first() |
| val result = coroutine.creationStackTrace.fold(StringBuilder()) { acc, element -> |
| acc.append(element.toString()) |
| acc.append('\n') |
| }.toString().trimStackTrace() |
| |
| runBlocking { deferred.cancelAndJoin() } |
| |
| val expected = ("kotlin.coroutines.intrinsics.IntrinsicsKt__IntrinsicsJvmKt.createCoroutineUnintercepted(IntrinsicsJvm.kt:116)\n" + |
| "kotlinx.coroutines.intrinsics.CancellableKt.startCoroutineCancellable(Cancellable.kt:23)\n" + |
| "kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:109)\n" + |
| "kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:160)\n" + |
| "kotlinx.coroutines.BuildersKt__Builders_commonKt.async(Builders.common.kt:88)\n" + |
| "kotlinx.coroutines.BuildersKt.async(Unknown Source)\n" + |
| "kotlinx.coroutines.BuildersKt__Builders_commonKt.async\$default(Builders.common.kt:81)\n" + |
| "kotlinx.coroutines.BuildersKt.async\$default(Unknown Source)\n" + |
| "kotlinx.coroutines.debug.CoroutinesDumpTest.testCreationStackTrace(CoroutinesDumpTest.kt:109)").trimStackTrace() |
| assertTrue(result.startsWith(expected)) |
| } |
| |
| @Test |
| fun testFinishedCoroutineRemoved() = synchronized(monitor) { |
| val deferred = GlobalScope.async { |
| activeMethod(shouldSuspend = true) |
| } |
| |
| awaitCoroutineStarted() |
| runBlocking { deferred.cancelAndJoin() } |
| verifyDump() |
| } |
| |
| private suspend fun activeMethod(shouldSuspend: Boolean) { |
| nestedActiveMethod(shouldSuspend) |
| assertTrue(true) // tail-call |
| } |
| |
| private suspend fun nestedActiveMethod(shouldSuspend: Boolean) { |
| if (shouldSuspend) yield() |
| notifyTest() |
| while (coroutineContext[Job]!!.isActive) { |
| Thread.sleep(100) |
| } |
| } |
| |
| private suspend fun sleepingOuterMethod() { |
| sleepingNestedMethod() |
| yield() |
| } |
| |
| private suspend fun sleepingNestedMethod() { |
| yield() |
| notifyTest() |
| delay(Long.MAX_VALUE) |
| } |
| |
| private fun awaitCoroutineStarted() { |
| (monitor as Object).wait() |
| } |
| |
| private fun notifyTest() { |
| synchronized(monitor) { |
| (monitor as Object).notify() |
| } |
| } |
| } |