1 /*
   2  * Copyright (c) 2016, 2018, Red Hat, Inc. All rights reserved.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 /*
  25  * @test TestArgumentRanges
  26  * @summary Test that Shenandoah arguments are checked for ranges where applicable
  27  * @key gc
  28  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @run driver TestArgumentRanges
  33  */
  34 
  35 import jdk.test.lib.process.ProcessTools;
  36 import jdk.test.lib.process.OutputAnalyzer;
  37 
  38 public class TestArgumentRanges {
  39     public static void main(String[] args) throws Exception {
  40         testRange("ShenandoahGarbageThreshold", 0, 100);
  41         testRange("ShenandoahFreeThreshold", 0, 100);
  42         testRange("ShenandoahAllocationThreshold", 0, 100);
  43         testHeuristics();
  44     }
  45 
  46     private static void testHeuristics() throws Exception {
  47 
  48         {
  49             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
  50                     "-XX:+UnlockExperimentalVMOptions",
  51                     "-XX:+UseShenandoahGC",
  52                     "-XX:ShenandoahGCHeuristics=aggressive",
  53                     "-version");
  54             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  55             output.shouldHaveExitValue(0);
  56         }
  57         {
  58             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
  59                     "-XX:+UnlockExperimentalVMOptions",
  60                     "-XX:+UseShenandoahGC",
  61                     "-XX:ShenandoahGCHeuristics=static",
  62                     "-version");
  63             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  64             output.shouldHaveExitValue(0);
  65         }
  66         {
  67             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
  68                     "-XX:+UnlockExperimentalVMOptions",
  69                     "-XX:+UseShenandoahGC",
  70                     "-XX:ShenandoahGCHeuristics=fluff",
  71                     "-version");
  72             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  73             output.shouldMatch("Unknown -XX:ShenandoahGCHeuristics option");
  74             output.shouldHaveExitValue(1);
  75         }
  76     }
  77 
  78     private static void testRange(String option, int min, int max) throws Exception {
  79         {
  80             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
  81                     "-XX:+UnlockExperimentalVMOptions",
  82                     "-XX:+UseShenandoahGC",
  83                     "-XX:" + option + "=" + (max + 1),
  84                     "-version");
  85             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  86             output.shouldHaveExitValue(1);
  87         }
  88         {
  89             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
  90                     "-XX:+UnlockExperimentalVMOptions",
  91                     "-XX:+UseShenandoahGC",
  92                     "-XX:" + option + "=" + max,
  93                     "-version");
  94             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  95             output.shouldHaveExitValue(0);
  96         }
  97         {
  98             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
  99                     "-XX:+UnlockExperimentalVMOptions",
 100                     "-XX:+UseShenandoahGC",
 101                     "-XX:" + option + "=" + (min - 1),
 102                     "-version");
 103             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 104             output.shouldHaveExitValue(1);
 105         }
 106         {
 107             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
 108                     "-XX:+UnlockExperimentalVMOptions",
 109                     "-XX:+UseShenandoahGC",
 110                     "-XX:" + option + "=" + min,
 111                     "-version");
 112             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 113             output.shouldHaveExitValue(0);
 114         }
 115     }
 116 }