core/kotlinx-coroutines-core/test/channels/ChannelLinearizabilityTest.kt

/*
 * Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 */

package kotlinx.coroutines.experimental.channels

import com.devexperts.dxlab.lincheck.LinChecker
import com.devexperts.dxlab.lincheck.annotations.Operation
import com.devexperts.dxlab.lincheck.annotations.Param
import com.devexperts.dxlab.lincheck.annotations.Reset
import com.devexperts.dxlab.lincheck.paramgen.IntGen
import com.devexperts.dxlab.lincheck.stress.*
import kotlinx.coroutines.experimental.*
import org.junit.Test

@Param(name = "value", gen = IntGen::class, conf = "1:3")
class ChannelLinearizabilityTest : TestBase() {
    private val lt = LinTesting()
    private lateinit var channel: Channel<Int>

    @Reset
    fun reset() {
        channel = Channel<Int>()
    }

    @Operation(runOnce = true)
    fun send1(@Param(name = "value") value: Int) = lt.run("send1") { channel.send(value) }

    @Operation(runOnce = true)
    fun send2(@Param(name = "value") value: Int) = lt.run("send2") { channel.send(value) }

    @Operation(runOnce = true)
    fun send3(@Param(name = "value") value: Int) = lt.run("send3") { channel.send(value) }

    @Operation(runOnce = true)
    fun receive1() = lt.run("receive1") { channel.receive() }

    @Operation(runOnce = true)
    fun receive2() = lt.run("receive2") { channel.receive() }

    @Operation(runOnce = true)
    fun receive3() = lt.run("receive3") { channel.receive() }

//    @Operation(runOnce = true)
//    fun close1() = lt.run("close1") { channel.close(IOException("close1")) }
//
//    @Operation(runOnce = true)
//    fun close2() = lt.run("close2") { channel.close(IOException("close2")) }

    @Test
    fun testLinearizability() {
        val options = StressOptions()
            .iterations(100)
            .invocationsPerIteration(1000 * stressTestMultiplier)
            .addThread(1, 3)
            .addThread(1, 3)
            .addThread(1, 3)
            .verifier(LinVerifier::class.java)
        LinChecker.check(ChannelLinearizabilityTest::class.java, options)
    }
}