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/*
* Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
package kotlinx.coroutines.channels
import kotlinx.coroutines.*
import kotlin.test.*
class LinkedListChannelTest : TestBase() {
@Test
fun testBasic() = runTest {
val c = Channel<Int>(Channel.UNLIMITED)
c.send(1)
check(c.offer(2))
c.send(3)
check(c.close())
check(!c.close())
assertEquals(1, c.receive())
assertEquals(2, c.poll())
assertEquals(3, c.receiveOrNull())
assertNull(c.receiveOrNull())
}
@Test
fun testConsumeAll() = runTest {
val q = Channel<Int>(Channel.UNLIMITED)
for (i in 1..10) {
q.send(i) // buffers
}
q.cancel()
check(q.isClosedForSend)
check(q.isClosedForReceive)
assertFailsWith<CancellationException> { q.receiveOrNull() }
}
@Test
fun testCancelWithCause() = runTest({ it is TestCancellationException }) {
val channel = Channel<Int>(Channel.UNLIMITED)
channel.cancel(TestCancellationException())
channel.receiveOrNull()
}
}
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