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  * @library /testlibrary
  29  *
  30  * @run driver TestArgumentRanges
  31  */
  32 
  33 import com.oracle.java.testlibrary.*;
  34 
  35 public class TestArgumentRanges {
  36     public static void main(String[] args) throws Exception {
  37         testRange("ShenandoahGarbageThreshold", 0, 100);
  38         testRange("ShenandoahMinFreeThreshold", 0, 100);
  39         testRange("ShenandoahAllocationThreshold", 0, 100);
  40         testHeuristics();
  41     }
  42 
  43     private static void testHeuristics() throws Exception {
  44 
  45         {
  46             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  47                     "-Xmx128m",
  48                     "-XX:+UnlockDiagnosticVMOptions",
  49                     "-XX:+UnlockExperimentalVMOptions",
  50                     "-XX:+UseShenandoahGC",
  51                     "-XX:ShenandoahGCHeuristics=aggressive",
  52                     "-version");
  53             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  54             output.shouldHaveExitValue(0);
  55         }
  56         {
  57             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  58                     "-Xmx128m",
  59                     "-XX:+UnlockDiagnosticVMOptions",
  60                     "-XX:+UnlockExperimentalVMOptions",
  61                     "-XX:+UseShenandoahGC",
  62                     "-XX:ShenandoahGCHeuristics=static",
  63                     "-version");
  64             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  65             output.shouldHaveExitValue(0);
  66         }
  67         {
  68             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  69                     "-Xmx128m",
  70                     "-XX:+UnlockDiagnosticVMOptions",
  71                     "-XX:+UnlockExperimentalVMOptions",
  72                     "-XX:+UseShenandoahGC",
  73                     "-XX:ShenandoahGCHeuristics=fluff",
  74                     "-version");
  75             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  76             output.shouldMatch("Unknown -XX:ShenandoahGCHeuristics option");
  77             output.shouldHaveExitValue(1);
  78         }
  79     }
  80 
  81     private static void testRange(String option, int min, int max) throws Exception {
  82         {
  83             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  84                     "-Xmx128m",
  85                     "-XX:+UnlockDiagnosticVMOptions",
  86                     "-XX:+UnlockExperimentalVMOptions",
  87                     "-XX:+UseShenandoahGC",
  88                     "-XX:" + option + "=" + (max + 1),
  89                     "-version");
  90             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  91             output.shouldHaveExitValue(1);
  92         }
  93         {
  94             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  95                     "-Xmx128m",
  96                     "-XX:+UnlockDiagnosticVMOptions",
  97                     "-XX:+UnlockExperimentalVMOptions",
  98                     "-XX:+UseShenandoahGC",
  99                     "-XX:" + option + "=" + max,
 100                     "-version");
 101             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 102             output.shouldHaveExitValue(0);
 103         }
 104         {
 105             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
 106                     "-Xmx128m",
 107                     "-XX:+UnlockDiagnosticVMOptions",
 108                     "-XX:+UnlockExperimentalVMOptions",
 109                     "-XX:+UseShenandoahGC",
 110                     "-XX:" + option + "=" + (min - 1),
 111                     "-version");
 112             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 113             output.shouldHaveExitValue(1);
 114         }
 115         {
 116             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
 117                     "-Xmx128m",
 118                     "-XX:+UnlockDiagnosticVMOptions",
 119                     "-XX:+UnlockExperimentalVMOptions",
 120                     "-XX:+UseShenandoahGC",
 121                     "-XX:" + option + "=" + min,
 122                     "-version");
 123             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 124             output.shouldHaveExitValue(0);
 125         }
 126     }
 127 }