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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.recording.time;

import java.time.Duration;

import java.util.concurrent.CountDownLatch;

import jdk.jfr.Recording;

import jdk.jfr.consumer.EventStream;

import jdk.test.lib.Asserts;

/**

 * @test

 * @key jfr

 * @summary Test Recording::SetFlushInterval(...) and

 *          Recording::getFlushInterval()

 * @requires vm.hasJFR

 * @library /test/lib

 * @run main/othervm jdk.jfr.api.recording.time.TestSetFlushInterval

 */

public class TestSetFlushInterval {

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

        testSetGet();

        testSetNull();

        testFlush();

    }

    static void testFlush() throws Exception {

        CountDownLatch flush = new CountDownLatch(1);

        try (EventStream es = EventStream.openRepository()) {

            es.onFlush(() -> {

                flush.countDown();

            });

            es.startAsync();

            try (Recording r = new Recording()) {

                r.setFlushInterval(Duration.ofSeconds(1));

                r.start();

                flush.await();

            }

        }

    }

    static void testSetNull() {

        try (Recording r = new Recording()) {

            r.setFlushInterval(null);

            Asserts.fail("Expected NullPointerException");

        } catch (NullPointerException npe) {

            // as expected

        }

    }

    static void testSetGet() {

        try (Recording r = new Recording()) {

            Duration a = Duration.ofNanos(21378461289374646L);

            r.setFlushInterval(a);

            Duration b = r.getFlushInterval();

            Asserts.assertEQ(a, b);

        }

    }

}