| /* |
| * 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 LaunchLazyTest : TestBase() { |
| @Test |
| fun testLaunchAndYieldJoin() = runTest { |
| expect(1) |
| val job = launch(start = CoroutineStart.LAZY) { |
| expect(4) |
| yield() // does nothing -- main waits |
| expect(5) |
| } |
| expect(2) |
| yield() // does nothing, was not started yet |
| expect(3) |
| assertTrue(!job.isActive && !job.isCompleted) |
| job.join() |
| assertTrue(!job.isActive && job.isCompleted) |
| finish(6) |
| } |
| |
| @Test |
| fun testStart() = runTest { |
| expect(1) |
| val job = launch(start = CoroutineStart.LAZY) { |
| expect(5) |
| yield() // yields back to main |
| expect(7) |
| } |
| expect(2) |
| yield() // does nothing, was not started yet |
| expect(3) |
| assertTrue(!job.isActive && !job.isCompleted) |
| assertTrue(job.start()) |
| assertTrue(job.isActive && !job.isCompleted) |
| assertTrue(!job.start()) // start again -- does nothing |
| assertTrue(job.isActive && !job.isCompleted) |
| expect(4) |
| yield() // now yield to started coroutine |
| expect(6) |
| assertTrue(job.isActive && !job.isCompleted) |
| yield() // yield again |
| assertTrue(!job.isActive && job.isCompleted) // it completes this time |
| expect(8) |
| job.join() // immediately returns |
| finish(9) |
| } |
| |
| @Test |
| fun testInvokeOnCompletionAndStart() = runTest { |
| expect(1) |
| val job = launch(start = CoroutineStart.LAZY) { |
| expect(5) |
| } |
| yield() // no started yet! |
| expect(2) |
| job.invokeOnCompletion { |
| expect(6) |
| } |
| expect(3) |
| job.start() |
| expect(4) |
| yield() |
| finish(7) |
| } |
| } |