BenchmarkParamsTest.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.infraparams;

import org.junit.Assert;
import org.junit.Test;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.BenchmarkParams;
import org.openjdk.jmh.it.Fixtures;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.runner.options.CommandLineOptionException;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;
import org.openjdk.jmh.runner.options.TimeValue;

import java.util.Collection;
import java.util.Collections;
import java.util.IdentityHashMap;

@State(Scope.Thread)
public class BenchmarkParamsTest {

    Collection<BenchmarkParams> set;

    @Setup(Level.Iteration)
    public void setup() {
        set = Collections.synchronizedSet(Collections.newSetFromMap(new IdentityHashMap<>()));
    }

    @TearDown(Level.Iteration)
    public void verify() {
        Assert.assertEquals(1, set.size());
    }

    @Benchmark
    @Threads(4)
    public void test(BenchmarkParams params) {
        set.add(params);
        Fixtures.work();
    }

    @Test
    public void test() throws RunnerException, CommandLineOptionException {
        Options opts = new OptionsBuilder()
                .include(Fixtures.getTestMask(this.getClass()))
                .warmupIterations(5)
                .warmupTime(TimeValue.seconds(1))
                .measurementIterations(5)
                .measurementTime(TimeValue.seconds(1))
                .forks(1)
                .shouldFailOnError(true)
                .build();

        new Runner(opts).run();
    }

}