/*

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

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package jdk.jfr.event.gc.detailed;

import java.util.List;

import jdk.jfr.Recording;

import jdk.jfr.consumer.RecordedEvent;

import jdk.test.lib.jfr.EventNames;

import jdk.test.lib.jfr.Events;

 * @test

 * @key jfr

 * @requires vm.gc == "G1" | vm.gc == null

 * @library /test/lib /test/jdk

 * @run main/othervm -XX:NewSize=2m -XX:MaxNewSize=2m -Xmx32m -XX:+UseG1GC -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps jdk.jfr.event.gc.detailed.TestG1EvacMemoryStatsEvent

 */

public class TestG1EvacMemoryStatsEvent {

    public static byte[] bytes;

    public static void runTest(String event_name) throws Exception {

        Recording recording = new Recording();

        // activate the event we are interested in and start recording

        recording.enable(event_name);

        recording.start();

        // Setting NewSize and MaxNewSize will limit eden, so

        // allocating 1024 5k byte arrays should trigger at

        // least one Young GC.

        for (int i = 0; i < 1024; i++) {

            bytes = new byte[5 * 1024];

        }

        recording.stop();

        // Verify recording

        List<RecordedEvent> all = Events.fromRecording(recording);

        for (RecordedEvent e : all) {

            Events.assertField(e, "statistics.gcId").above(0);

        }

        recording.close();

    }

    public static void main(String[] args) throws Exception {

        runTest(EventNames.G1EvacuationYoungStatistics);

        runTest(EventNames.G1EvacuationOldStatistics);

    }

}