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

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * 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.jcmd;

import java.util.List;

import jdk.jfr.FlightRecorder;

import jdk.jfr.Recording;

import jdk.test.lib.jfr.EventNames;

/*

 * @test

 * @summary Start a recording with or without path-to-gc-roots

 * @library /test/lib /test/jdk

 * @key jfr

 *

 * @run main/othervm jdk.jfr.jcmd.TestJcmdStartPathToGCRoots

 */

public class TestJcmdStartPathToGCRoots {

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

        JcmdHelper.jcmd("JFR.start", "path-to-gc-roots=true");

        assertCutoff("infinity", "Expected cutoff to be '0 ns' wuth -XX:StartFlightRecording=path-to-gc-roots=true");

        closeRecording();

        JcmdHelper.jcmd("JFR.start", "path-to-gc-roots=false");

        assertCutoff("0 ns", "Expected cutoff to be '0 ns' with -XX:StartFlightRecording=path-to-gc-roots=false");

        closeRecording();

        JcmdHelper.jcmd("JFR.start");

        assertCutoff("0 ns", "Expected cutoff to be '0 ns' with -XX:StartFlightRecording=");

        closeRecording();

    }

    private static void assertCutoff(String expected, String errorMessage) throws Exception {

        List<Recording> recordings = FlightRecorder.getFlightRecorder().getRecordings();

        if (recordings.isEmpty()) {

            throw new Exception("Expected recording to be started");

        }

        if (recordings.size() != 1) {

            throw new Exception("Expected only one recording");

        }

        String settingName = EventNames.OldObjectSample + "#" + "cutoff";

        Recording r = recordings.get(0);

        String cutoff = r.getSettings().get(settingName);

        System.out.println(settingName + "=" + cutoff);

        if (!expected.equals(cutoff)) {

            throw new Exception(errorMessage);

        }

        r.close();

    }

    private static void closeRecording() {

        for (Recording r : FlightRecorder.getFlightRecorder().getRecordings()) {

            r.close();

        }

    }

}