| /* |
| * Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license. |
| */ |
| |
| package kotlinx.coroutines.experimental.selects |
| |
| import kotlinx.coroutines.experimental.* |
| import kotlin.test.* |
| |
| class SelectTimeoutTest : TestBase() { |
| @Test |
| fun testBasic() = runTest { |
| expect(1) |
| val result = select<String> { |
| onTimeout(1000) { |
| expectUnreached() |
| "FAIL" |
| } |
| onTimeout(100) { |
| expect(2) |
| "OK" |
| } |
| onTimeout(500) { |
| expectUnreached() |
| "FAIL" |
| } |
| } |
| assertEquals("OK", result) |
| finish(3) |
| } |
| |
| @Test |
| fun testZeroTimeout() = runTest { |
| expect(1) |
| val result = select<String> { |
| onTimeout(1000) { |
| expectUnreached() |
| "FAIL" |
| } |
| onTimeout(0) { |
| expect(2) |
| "OK" |
| } |
| } |
| assertEquals("OK", result) |
| finish(3) |
| } |
| |
| @Test |
| fun testNegativeTimeout() = runTest { |
| expect(1) |
| val result = select<String> { |
| onTimeout(1000) { |
| expectUnreached() |
| "FAIL" |
| } |
| onTimeout(-10) { |
| expect(2) |
| "OK" |
| } |
| } |
| assertEquals("OK", result) |
| finish(3) |
| } |
| |
| @Test |
| fun testUnbiasedNegativeTimeout() = runTest { |
| val counters = intArrayOf(0, 0, 0) |
| val iterations =10_000 |
| for (i in 0..iterations) { |
| val result = selectUnbiased<Int> { |
| onTimeout(-1000) { |
| 0 |
| } |
| onTimeout(0) { |
| 1 |
| } |
| onTimeout(1000) { |
| expectUnreached() |
| 2 |
| } |
| } |
| ++counters[result] |
| } |
| assertEquals(0, counters[2]) |
| assertTrue { counters[0] > iterations / 4 } |
| assertTrue { counters[1] > iterations / 4 } |
| } |
| } |