1 /*
   2  * Copyright (c) 2020, Red Hat, Inc. 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 
  25 /*
  26  * @test TestModeUnlock
  27  * @summary Test that Shenandoah modes are unlocked properly
  28  * @key gc
  29  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  30  * @library /test/lib
  31  * @modules java.base/jdk.internal.misc
  32  *          java.management
  33  * @run driver TestModeUnlock
  34  */
  35 
  36 import jdk.test.lib.process.ProcessTools;
  37 import jdk.test.lib.process.OutputAnalyzer;
  38 
  39 public class TestModeUnlock {
  40 
  41     enum Mode {
  42         PRODUCT,
  43         DIAGNOSTIC,
  44         EXPERIMENTAL,
  45     }
  46 
  47     public static void main(String[] args) throws Exception {
  48         testWith("-XX:ShenandoahGCMode=satb",    Mode.PRODUCT);
  49         testWith("-XX:ShenandoahGCMode=iu",      Mode.EXPERIMENTAL);
  50         testWith("-XX:ShenandoahGCMode=passive", Mode.DIAGNOSTIC);
  51     }
  52 
  53     private static void testWith(String h, Mode mode) throws Exception {
  54         if (false) { // When ShenandoahGC is experimental flag, this makes no sense to test
  55             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  56                     "-Xmx128m",
  57                     "-XX:-UnlockDiagnosticVMOptions",
  58                     "-XX:-UnlockExperimentalVMOptions",
  59                     "-XX:+UseShenandoahGC",
  60                     h,
  61                     "-version"
  62             );
  63             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  64             switch (mode) {
  65                 case PRODUCT:
  66                     output.shouldHaveExitValue(0);
  67                     break;
  68                 case DIAGNOSTIC:
  69                 case EXPERIMENTAL:
  70                     output.shouldNotHaveExitValue(0);
  71                     break;
  72             }
  73         }
  74 
  75         if (false) { // When ShenandoahGC is experimental flag, this makes no sense to test
  76             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  77                     "-Xmx128m",
  78                     "-XX:+UnlockDiagnosticVMOptions",
  79                     "-XX:-UnlockExperimentalVMOptions",
  80                     "-XX:+UseShenandoahGC",
  81                     h,
  82                     "-version"
  83             );
  84             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  85             switch (mode) {
  86                 case PRODUCT:
  87                 case DIAGNOSTIC:
  88                     output.shouldHaveExitValue(0);
  89                     break;
  90                 case EXPERIMENTAL:
  91                     output.shouldNotHaveExitValue(0);
  92                     break;
  93             }
  94         }
  95 
  96         {
  97             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  98                     "-Xmx128m",
  99                     "-XX:-UnlockDiagnosticVMOptions",
 100                     "-XX:+UnlockExperimentalVMOptions",
 101                     "-XX:+UseShenandoahGC",
 102                     h,
 103                     "-version"
 104             );
 105             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 106             switch (mode) {
 107                 case PRODUCT:
 108                 case EXPERIMENTAL:
 109                     output.shouldHaveExitValue(0);
 110                     break;
 111                 case DIAGNOSTIC:
 112                     output.shouldNotHaveExitValue(0);
 113                     break;
 114             }
 115         }
 116     }
 117 
 118 }