| /* |
| * Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license. |
| */ |
| |
| package kotlinx.coroutines.experimental.internal |
| |
| import kotlinx.coroutines.experimental.* |
| import kotlin.test.* |
| |
| class LockFreeMPSCQueueTest : TestBase() { |
| @Test |
| fun testBasic() { |
| val q = LockFreeMPSCQueue<Int>() |
| assertTrue(q.isEmpty) |
| assertTrue(q.addLast(1)) |
| assertFalse(q.isEmpty) |
| assertTrue(q.addLast(2)) |
| assertFalse(q.isEmpty) |
| assertTrue(q.addLast(3)) |
| assertFalse(q.isEmpty) |
| assertEquals(1, q.removeFirstOrNull()) |
| assertFalse(q.isEmpty) |
| assertEquals(2, q.removeFirstOrNull()) |
| assertFalse(q.isEmpty) |
| assertTrue(q.addLast(4)) |
| q.close() |
| assertFalse(q.isEmpty) |
| assertFalse(q.addLast(5)) |
| assertFalse(q.isEmpty) |
| assertEquals(3, q.removeFirstOrNull()) |
| assertFalse(q.isEmpty) |
| assertEquals(4, q.removeFirstOrNull()) |
| assertTrue(q.isEmpty) |
| } |
| |
| @Test |
| fun testCopyGrow() { |
| val n = 1000 * stressTestMultiplier |
| val q = LockFreeMPSCQueue<Int>() |
| assertTrue(q.isEmpty) |
| repeat(n) { i -> |
| assertTrue(q.addLast(i)) |
| assertFalse(q.isEmpty) |
| } |
| repeat(n) { i -> |
| assertEquals(i, q.removeFirstOrNull()) |
| } |
| assertTrue(q.isEmpty) |
| } |
| } |