WispEngineCurrentTest.java

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/*
 * @test
 * @summary Test WispEngine semantic change after refactor
 * @requires os.family == "linux"
 * @library /lib/testlibrary
 * @run main/othervm -XX:+UseWisp2  WispEngineCurrentTest
 */

import com.alibaba.wisp.engine.WispEngine;

import java.util.*;
import java.util.concurrent.*;

import static jdk.testlibrary.Asserts.assertTrue;

public class WispEngineCurrentTest {
    public static void main(String[] args) throws Exception {
        WispEngine engine = WispEngine.createEngine(4, r -> {
            Thread t = new Thread(r);
            t.setDaemon(true);
            return t;
        });
        Set<WispEngine> wispEngineSet = Collections.newSetFromMap(new ConcurrentHashMap<>());
        CountDownLatch latch0 = new CountDownLatch(10);
        for (int i = 0; i < 10; i++) {
            engine.execute(() -> {
                wispEngineSet.add(WispEngine.current());
                latch0.countDown();
            });
        }

        assertTrue(latch0.await(1, TimeUnit.SECONDS));
        assertTrue(wispEngineSet.size() == 1);
        CountDownLatch latch1 = new CountDownLatch(1);
        WispEngine.dispatch(() -> {
            wispEngineSet.add(WispEngine.current());
            latch1.countDown();
        });
        assertTrue(latch1.await(1, TimeUnit.SECONDS));
        assertTrue(wispEngineSet.size() == 2);
    }
}