ForkedStuckThreadTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * accompanied this code).
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package org.openjdk.jmh.it.errors;

import org.junit.Assert;
import org.junit.Test;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.it.Fixtures;
import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.util.FileUtils;

import java.io.File;
import java.io.IOException;
import java.util.Collection;
import java.util.concurrent.TimeUnit;

@Measurement(iterations = 1, time = 10, timeUnit = TimeUnit.MILLISECONDS)
@Warmup(iterations = 1, time = 10, timeUnit = TimeUnit.MILLISECONDS)
@State(Scope.Benchmark)
public class ForkedStuckThreadTest {

    @Setup
    public void setup() {
        Thread t = new Thread(() -> {
            try {
                TimeUnit.DAYS.sleep(1);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        });
        t.setDaemon(false);
        t.start();
    }

    @Benchmark
    public void bench() throws InterruptedException {
        Fixtures.work();
    }

    @Test
    public void test() throws RunnerException, IOException {
        File output = FileUtils.tempFile("output");

        Shared.doRun(Fixtures.getTestMask(this.getClass()), true, output);

        Collection<String> lines = FileUtils.readAllLines(output);
        Shared.print(lines);

        Assert.assertTrue(Shared.contains(lines, "expired, forcing forked VM to exit"));
    }

}