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package org.openjdk.jmh.it.profilers;

import org.junit.Assert;
import org.junit.Assume;
import org.junit.Test;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.it.Fixtures;
import org.openjdk.jmh.profile.AsyncProfiler;
import org.openjdk.jmh.profile.ProfilerException;
import org.openjdk.jmh.results.Result;
import org.openjdk.jmh.results.RunResult;
import org.openjdk.jmh.results.TextResult;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;

import java.io.File;
import java.util.Collection;
import java.util.Map;

@Fork(2)
public class AsyncProfilerForkTest extends AbstractHotspotProfilerTest {

    private Map<String, Result> run(String mode) throws RunnerException {
        try {
            new AsyncProfiler("");
        } catch (ProfilerException e) {
            Assume.assumeNoException("Could not load async-profiler", e);
        }

        Options opts = new OptionsBuilder()
                .include(Fixtures.getTestMask(this.getClass()))
                .addProfiler(AsyncProfiler.class, "output=" + mode)
                .build();

        RunResult rr = new Runner(opts).runSingle();

        return rr.getSecondaryResults();
    }

    @Test
    public void text() throws RunnerException {
        Map<String, Result> sr = run("text");

        Collection<? extends File> files = ((AsyncProfiler.FileResult) sr.get("async-summary")).getFiles();
        Assert.assertEquals(3, files.size());
        for (File file : files) {
            Assert.assertTrue(file.length() > 10);
        }

        TextResult text = (TextResult) sr.get("async-text");
        Assert.assertTrue(text.extendedInfo().length() > 10);
    }

    @Test
    public void collapsed() throws RunnerException {
        Map<String, Result> sr = run("collapsed");

        Collection<? extends File> files = ((AsyncProfiler.FileResult) sr.get("async-collapsed")).getFiles();
        Assert.assertEquals(3, files.size());
        for (File file : files) {
            Assert.assertTrue(file.length() > 10);
        }
    }

    @Test
    public void flamegraph() throws RunnerException {
        Map<String, Result> sr = run("flamegraph");

        Collection<? extends File> files = ((AsyncProfiler.FileResult) sr.get("async-flamegraph")).getFiles();
        Assert.assertEquals(6, files.size());
        for (File file : files) {
            Assert.assertTrue(file.length() > 10);
        }
    }

    @Test
    public void jfr() throws RunnerException {
        Map<String, Result> sr = run("jfr");
        Collection<? extends File> files = ((AsyncProfiler.FileResult) sr.get("async-jfr")).getFiles();
        Assert.assertEquals(3, files.size());
        for (File file : files) {
            Assert.assertTrue(file.length() > 10);
        }
    }
}
