1 /*
   2  * Copyright (c) 2017, 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 TestHumongousThresholdArgs
  26  * @summary Test that Shenandoah humongous threshold args are checked
  27  * @key gc
  28  * @library /testlibrary
  29  *
  30  * @run driver TestHumongousThresholdArgs
  31  */
  32 
  33 import com.oracle.java.testlibrary.*;
  34 
  35 public class TestHumongousThresholdArgs {
  36     public static void main(String[] args) throws Exception {
  37         {
  38             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions",
  39                     "-XX:+UseShenandoahGC",
  40                     "-version");
  41             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  42             output.shouldHaveExitValue(0);
  43         }
  44 
  45         int[] valid = new int[] {1, 10, 50, 90, 100};
  46         int[] invalid = new int[] {-100, -1, 0, 101, 1000};
  47 
  48         for (int v : valid) {
  49             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions",
  50                     "-XX:+UseShenandoahGC",
  51                     "-XX:ShenandoahHumongousThreshold=" + v,
  52                     "-version");
  53             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  54             output.shouldHaveExitValue(0);
  55         }
  56 
  57         for (int v : invalid) {
  58             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions",
  59                     "-XX:+UseShenandoahGC",
  60                     "-XX:ShenandoahHumongousThreshold=" + v,
  61                     "-version");
  62             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  63             output.shouldHaveExitValue(1);
  64         }
  65     }
  66 }