1 /*
   2  * Copyright (c) 2016, 2018, 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 TestArgumentRanges
  27  * @summary Test that Shenandoah arguments are checked for ranges where applicable
  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("ShenandoahMinFreeThreshold", 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(
  50                     "-Xmx128m",
  51                     "-XX:+UnlockDiagnosticVMOptions",
  52                     "-XX:+UnlockExperimentalVMOptions",
  53                     "-XX:+UseShenandoahGC",
  54                     "-XX:ShenandoahGCHeuristics=aggressive",
  55                     "-version");
  56             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  57             output.shouldHaveExitValue(0);
  58         }
  59         {
  60             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  61                     "-Xmx128m",
  62                     "-XX:+UnlockDiagnosticVMOptions",
  63                     "-XX:+UnlockExperimentalVMOptions",
  64                     "-XX:+UseShenandoahGC",
  65                     "-XX:ShenandoahGCHeuristics=static",
  66                     "-version");
  67             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  68             output.shouldHaveExitValue(0);
  69         }
  70         {
  71             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  72                     "-Xmx128m",
  73                     "-XX:+UnlockDiagnosticVMOptions",
  74                     "-XX:+UnlockExperimentalVMOptions",
  75                     "-XX:+UseShenandoahGC",
  76                     "-XX:ShenandoahGCHeuristics=fluff",
  77                     "-version");
  78             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  79             output.shouldMatch("Unknown -XX:ShenandoahGCHeuristics option");
  80             output.shouldHaveExitValue(1);
  81         }
  82     }
  83 
  84     private static void testRange(String option, int min, int max) throws Exception {
  85         {
  86             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  87                     "-Xmx128m",
  88                     "-XX:+UnlockDiagnosticVMOptions",
  89                     "-XX:+UnlockExperimentalVMOptions",
  90                     "-XX:+UseShenandoahGC",
  91                     "-XX:" + option + "=" + (max + 1),
  92                     "-version");
  93             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  94             output.shouldHaveExitValue(1);
  95         }
  96         {
  97             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  98                     "-Xmx128m",
  99                     "-XX:+UnlockDiagnosticVMOptions",
 100                     "-XX:+UnlockExperimentalVMOptions",
 101                     "-XX:+UseShenandoahGC",
 102                     "-XX:" + option + "=" + max,
 103                     "-version");
 104             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 105             output.shouldHaveExitValue(0);
 106         }
 107         {
 108             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
 109                     "-Xmx128m",
 110                     "-XX:+UnlockDiagnosticVMOptions",
 111                     "-XX:+UnlockExperimentalVMOptions",
 112                     "-XX:+UseShenandoahGC",
 113                     "-XX:" + option + "=" + (min - 1),
 114                     "-version");
 115             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 116             output.shouldHaveExitValue(1);
 117         }
 118         {
 119             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
 120                     "-Xmx128m",
 121                     "-XX:+UnlockDiagnosticVMOptions",
 122                     "-XX:+UnlockExperimentalVMOptions",
 123                     "-XX:+UseShenandoahGC",
 124                     "-XX:" + option + "=" + min,
 125                     "-version");
 126             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 127             output.shouldHaveExitValue(0);
 128         }
 129     }
 130 }