--- /dev/null 2019-02-07 20:54:51.336000000 +0300 +++ new/test/jdk/jfr/jcmd/TestJcmdStartStopDefault.java 2019-02-08 18:33:44.527775833 +0300 @@ -0,0 +1,77 @@ +/* + * 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.nio.file.Path; +import java.nio.file.Paths; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +import jdk.test.lib.Asserts; +import jdk.test.lib.jfr.FileHelper; +import jdk.test.lib.process.OutputAnalyzer; + +/** + * @test + * @summary Start a recording without name. + * @key jfr + * + * @library /lib / + * @run main/othervm jdk.jfr.jcmd.TestJcmdStartStopDefault + */ +public class TestJcmdStartStopDefault { + + public static void main(String[] args) throws Exception { + Path recording = Paths.get(".","TestJcmdStartStopDefault.jfr").toAbsolutePath().normalize(); + + OutputAnalyzer output = JcmdHelper.jcmd("JFR.start"); + JcmdAsserts.assertRecordingHasStarted(output); + + String name = parseRecordingName(output); + JcmdHelper.waitUntilRunning(name); + + output = JcmdHelper.jcmd("JFR.dump", + "name=" + name, + "filename=" + recording); + JcmdAsserts.assertRecordingDumpedToFile(output, recording.toFile()); + JcmdHelper.stopAndCheck(name); + FileHelper.verifyRecording(recording.toFile()); + } + + private static String parseRecordingName(OutputAnalyzer output) { + // Expected output: + // Started recording recording-1. No limit (duration/maxsize/maxage) in use. + // Use JFR.dump name=recording-1 filename=FILEPATH to copy recording data to file. + + String stdout = output.getStdout(); + Pattern p = Pattern.compile(".*Use jcmd \\d+ JFR.dump name=(\\S+).*", Pattern.DOTALL); + Matcher m = p.matcher(stdout); + Asserts.assertTrue(m.matches(), "Could not parse recording name"); + String name = m.group(1); + System.out.println("Recording name=" + name); + return name; + } +}