test/jdk/jdk/jfr/api/recording/state/TestStateMultiple.java

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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.
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 * 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).
 *
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package jdk.jfr.api.recording.state;

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

/*
 * @test
 * @summary Test Recording state with concurrent recordings
 * @key jfr
 * @library /test/lib
 * @run main/othervm jdk.jfr.api.recording.state.TestStateMultiple
 */
public class TestStateMultiple {

    public static void main(String[] args) throws Throwable {
        Recording rA = new Recording();
        CommonHelper.verifyRecordingState(rA, RecordingState.NEW);
        verifyIllegalState(() -> rA.stop(), "stop() when not started");

        rA.start();
        CommonHelper.verifyRecordingState(rA, RecordingState.RUNNING);

        Recording rB = new Recording();
        CommonHelper.verifyRecordingState(rA, RecordingState.RUNNING);
        verifyIllegalState(() -> rA.start(), "double start()");
        CommonHelper.verifyRecordingState(rB, RecordingState.NEW);
        verifyIllegalState(() -> rB.stop(), "stop() when not started");

        rB.start();
        CommonHelper.verifyRecordingState(rA, RecordingState.RUNNING);
        CommonHelper.verifyRecordingState(rB, RecordingState.RUNNING);

        rB.stop();
        CommonHelper.verifyRecordingState(rA, RecordingState.RUNNING);
        CommonHelper.verifyRecordingState(rB, RecordingState.STOPPED);
        verifyIllegalState(() -> rB.start(), "start() after stop()");

        rB.close();
        CommonHelper.verifyRecordingState(rA, RecordingState.RUNNING);
        CommonHelper.verifyRecordingState(rB, RecordingState.CLOSED);
        verifyIllegalState(() -> rB.start(), "start() after close()");

        rA.stop();
        CommonHelper.verifyRecordingState(rA, RecordingState.STOPPED);
        verifyIllegalState(() -> rA.start(), "start() after stop()");
        CommonHelper.verifyRecordingState(rB, RecordingState.CLOSED);

        rA.close();
        CommonHelper.verifyRecordingState(rA, RecordingState.CLOSED);
        CommonHelper.verifyRecordingState(rB, RecordingState.CLOSED);
        verifyIllegalState(() -> rA.stop(), "stop() after close()");
        verifyIllegalState(() -> rB.start(), "start() after close()");
    }

    private static void verifyIllegalState(VoidFunction f, String msg) throws Throwable {
        CommonHelper.verifyException(f, msg, IllegalStateException.class);
    }
}