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package jdk.jfr.api.recording.options;

import java.time.Duration;
import java.time.Instant;

import jdk.jfr.Recording;
import jdk.jfr.RecordingState;
import jdk.test.lib.Asserts;
import jdk.test.lib.jfr.CommonHelper;

/**
 * @test
 * @summary Test setDuration(). Verify recording is stopped automatically.
 * @requires vm.flagless
 * @requires vm.hasJFR
 * @library /test/lib
 * @run main/othervm jdk.jfr.api.recording.options.TestDuration
 */
public class TestDuration {

    public static void main(String[] args) throws Throwable {
        final Duration duration = Duration.ofSeconds(1);
        Recording r = new Recording();
        r.setDuration(duration);
        Asserts.assertEquals(duration, r.getDuration(), "Wrong get/set duration");

        r.start();
        Instant afterStart = Instant.now();
        CommonHelper.waitForRecordingState(r, RecordingState.STOPPED);

        Instant afterStop = Instant.now();
        Asserts.assertLessThanOrEqual(r.getStopTime(), afterStop, "getStopTime() > afterStop");
        long durationMillis = afterStart.until(r.getStopTime()).toMillis();

        // Performance of test servers varies too much to make a strict check of actual duration.
        // We only check that recording stops before timeout of 20 seconds.
        System.out.printf("Recording stopped after %d ms, expected above 1000 ms%n", durationMillis);
        r.close();
    }

}
