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

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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

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package jdk.jfr.api.event;

import java.util.List;

import jdk.jfr.Recording;

import jdk.jfr.consumer.RecordedEvent;

import jdk.test.lib.jfr.Events;

import jdk.test.lib.jfr.SimpleEvent;

/**

 * @test

 * @summary Tests that a duration is recorded.

 * @key jfr

 * @requires vm.hasJFR

 * @library /test/lib

 * @run main/othervm jdk.jfr.api.event.TestEventDuration

 */

public class TestEventDuration {

    public static int counter;

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

        try(Recording r = new Recording()) {

            r.start();

            SimpleEvent e = new SimpleEvent();

            e.begin();

            for (int i = 0; i < 10_000;i++) {

                counter+=i;

            }

            e.end();

            e.commit();

            r.stop();

            List<RecordedEvent> events = Events.fromRecording(r);

            if (events.get(0).getDuration().toNanos() < 1) {

                throw new AssertionError("Expected a duration");

            }

        }

    }

}