blob: 110718ac55c01ae555c82f011803abb179e81454 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
* Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
package kotlinx.coroutines.reactive
import kotlinx.coroutines.*
import kotlinx.coroutines.selects.*
import org.junit.Test
import org.junit.runner.*
import org.junit.runners.*
import kotlin.test.*
@RunWith(Parameterized::class)
class PublisherSubscriptionSelectTest(private val request: Int) : TestBase() {
companion object {
@Parameterized.Parameters(name = "request = {0}")
@JvmStatic
fun params(): Collection<Array<Any>> = listOf(0, 1, 10).map { arrayOf<Any>(it) }
}
@Test
fun testSelect() = runTest {
// source with n ints
val n = 1000 * stressTestMultiplier
val source = publish { repeat(n) { send(it) } }
var a = 0
var b = 0
// open two subs
val channelA = source.openSubscription(request)
val channelB = source.openSubscription(request)
loop@ while (true) {
val done: Int = select {
channelA.onReceiveOrNull {
if (it != null) assertEquals(a++, it)
if (it == null) 0 else 1
}
channelB.onReceiveOrNull {
if (it != null) assertEquals(b++, it)
if (it == null) 0 else 2
}
}
when (done) {
0 -> break@loop
1 -> {
val r = channelB.receiveOrNull()
if (r != null) assertEquals(b++, r)
}
2 -> {
val r = channelA.receiveOrNull()
if (r != null) assertEquals(a++, r)
}
}
}
channelA.cancel()
channelB.cancel()
// should receive one of them fully
assertTrue(a == n || b == n)
}
}
|
