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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

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 * 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.io.File;

import java.nio.file.Paths;

import java.util.List;

import jdk.jfr.consumer.RecordedEvent;

import jdk.jfr.consumer.RecordingFile;

import jdk.test.lib.Asserts;

import jdk.test.lib.jfr.Events;

/*

 * @test

 * @key jfr

 *

 * @library /test/lib /test/jdk

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

 *

 * @run main jdk.jfr.event.gc.detailed.TestEvacuationFailedEvent

 */

public class TestEvacuationFailedEvent {

    private final static String EVENT_SETTINGS_FILE = System.getProperty("test.src", ".") + File.separator + "evacuationfailed-testsettings.jfc";

    private final static String JFR_FILE = "TestEvacuationFailedEvent.jfr";

    private final static int BYTES_TO_ALLOCATE = 1024 * 512;

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

        String[] vmFlags = {"-XX:+UnlockExperimentalVMOptions", "-XX:-UseFastUnorderedTimeStamps",

            "-Xmx64m", "-Xmn60m", "-XX:-UseDynamicNumberOfGCThreads", "-XX:ParallelGCThreads=3",

            "-XX:MaxTenuringThreshold=0", "-Xlog:gc*=debug", "-XX:+UseG1GC"};

        if (!ExecuteOOMApp.execute(EVENT_SETTINGS_FILE, JFR_FILE, vmFlags, BYTES_TO_ALLOCATE)) {

            System.out.println("OOM happened in the other thread(not test thread). Skip test.");

            // Skip test, process terminates due to the OOME error in the different thread

            return;

        }

        List<RecordedEvent> events = RecordingFile.readAllEvents(Paths.get(JFR_FILE));

        Events.hasEvents(events);

        for (RecordedEvent event : events) {

            long objectCount = Events.assertField(event, "evacuationFailed.objectCount").atLeast(1L).getValue();

            long smallestSize = Events.assertField(event, "evacuationFailed.smallestSize").atLeast(1L).getValue();

            long firstSize = Events.assertField(event, "evacuationFailed.firstSize").atLeast(smallestSize).getValue();

            long totalSize = Events.assertField(event, "evacuationFailed.totalSize").atLeast(firstSize).getValue();

            Asserts.assertLessThanOrEqual(smallestSize * objectCount, totalSize, "smallestSize * objectCount <= totalSize");

        }

    }

}