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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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 *
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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;
import static jdk.test.lib.Asserts.assertFalse;

/**
 * @test
 * @key jfr
 * @requires vm.hasJFR
 * @library /test/lib /test/jdk
 * @run main/othervm -XX:-ExplicitGCInvokesConcurrent jdk.jfr.event.gc.detailed.TestGCHeapMemoryPoolUsageEvent
 */
public class TestGCHeapMemoryPoolUsageEvent {
    public static void main(String[] args) throws Exception {
        try (Recording recording = new Recording()) {
            recording.enable(EventNames.GCHeapMemoryPoolUsage);
            recording.start();
            System.gc();
            recording.stop();

            List<RecordedEvent> events = Events.fromRecording(recording);
            System.out.println(events);
            assertFalse(events.isEmpty());

            RecordedEvent event = events.getFirst();
            Events.assertField(event, "name").notNull();
            Events.assertField(event, "used").atLeast(0L);
            Events.assertField(event, "committed").atLeast(0L);
            Events.assertField(event, "max").atLeast(-1L);
        }
    }
}


