test/jdk/jdk/jfr/jcmd/TestJcmdSaveToFile.java

/*
 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
 * 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,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package jdk.jfr.jcmd;

import java.io.File;

import jdk.test.lib.jfr.FileHelper;
import jdk.test.lib.process.OutputAnalyzer;

/*
 * @test
 * @summary The test verifies that recording can be written to a file both with JFR.start and JFR.stop
 * @key jfr
 * @library /test/lib /test/jdk
 * @run main/othervm jdk.jfr.jcmd.TestJcmdSaveToFile
 */
public class TestJcmdSaveToFile {

    public static void main(String[] args) throws Exception {
        testStartAndSave();
        testStopAndSave();
    }

    private static void testStartAndSave() throws Exception {
        String name = "testStartAndSave";
        File recording = new File(name + ".jfr");
        OutputAnalyzer output = JcmdHelper.jcmd("JFR.start",
                "name=" + name,
                "duration=1h",
                "filename=" + recording.getAbsolutePath());
        JcmdAsserts.assertRecordingHasStarted(output);
        JcmdHelper.waitUntilRunning(name);
        JcmdHelper.stopAndCheck(name);
        FileHelper.verifyRecording(recording);
    }

    private static void testStopAndSave() throws Exception {
        String name = "testStopAndSave";
        File recording = new File(name + ".jfr");
        OutputAnalyzer output = JcmdHelper.jcmd("JFR.start", "name=" + name);
        JcmdAsserts.assertRecordingHasStarted(output);
        JcmdHelper.waitUntilRunning(name);
        JcmdHelper.stopWriteToFileAndCheck(name, recording);
        FileHelper.verifyRecording(recording);
    }
}