1 /*
   2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import jdk.test.lib.dcmd.CommandExecutor;
  25 import jdk.test.lib.dcmd.JMXExecutor;
  26 import jdk.test.lib.process.OutputAnalyzer;
  27 import org.testng.annotations.Test;
  28 
  29 /*
  30  * @test
  31  * @summary Test of diagnostic command VM.events
  32  * @library /test/lib
  33  * @modules java.base/jdk.internal.misc
  34  *          java.compiler
  35  *          java.management
  36  *          jdk.internal.jvmstat/sun.jvmstat.monitor
  37  * @run testng  EventsTest
  38  */
  39 public class EventsTest {
  40 
  41     static String buildHeaderPattern(String logname) {
  42         return "^" + logname + ".*\\(\\d+ events\\):";
  43     }
  44 
  45     public void run_all(CommandExecutor executor) {
  46         OutputAnalyzer output = executor.execute("VM.events");
  47         // This tests for the output to contain the event log header line (e.g. "Classes unloaded (0 events):").
  48         // Those are always printed even if the corresponding event log is empty.
  49         output.stdoutShouldMatch(buildHeaderPattern("Events"));
  50         output.stdoutShouldMatch(buildHeaderPattern("Compilation"));
  51         output.stdoutShouldMatch(buildHeaderPattern("GC Heap History"));
  52         output.stdoutShouldMatch(buildHeaderPattern("Deoptimization"));
  53         output.stdoutShouldMatch(buildHeaderPattern("Classes unloaded"));
  54     }
  55 
  56     public void run_selected(CommandExecutor executor) {
  57         OutputAnalyzer output = executor.execute("VM.events log=deopt");
  58         // We only expect one log to be printed here.
  59         output.stdoutShouldMatch(buildHeaderPattern("Deoptimization"));
  60 
  61         output.stdoutShouldNotMatch(buildHeaderPattern("Events"));
  62         output.stdoutShouldNotMatch(buildHeaderPattern("Compilation"));
  63         output.stdoutShouldNotMatch(buildHeaderPattern("GC Heap History"));
  64         output.stdoutShouldNotMatch(buildHeaderPattern("Classes unloaded"));
  65     }
  66 
  67     @Test
  68     public void jmx() {
  69         run_all(new JMXExecutor());
  70         run_selected(new JMXExecutor());
  71     }
  72 }