1 /*
   2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. 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  * @test TestInitialTenuringThreshold
  26  * @key gc
  27  * @bug 8014765
  28  * @summary Tests argument processing for initial tenuring threshold
  29  * @library /testlibrary
  30  * @run main/othervm TestInitialTenuringThreshold
  31  * @author thomas.schatzl@oracle.com
  32  */
  33 
  34 import com.oracle.java.testlibrary.*;
  35 
  36 public class TestInitialTenuringThreshold {
  37 
  38   public static void runWithThresholds(int initial, int max, boolean shouldfail) throws Exception {
  39     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  40       "-XX:InitialTenuringThreshold=" + String.valueOf(initial),
  41       "-XX:MaxTenuringThreshold=" + String.valueOf(max),
  42       "-version"
  43       );
  44 
  45     OutputAnalyzer output = new OutputAnalyzer(pb.start());
  46     if (shouldfail) {
  47       output.shouldHaveExitValue(1);
  48     } else {
  49       output.shouldHaveExitValue(0);
  50     }
  51   }
  52 
  53 
  54   public static void main(String args[]) throws Exception {
  55     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  56       // some value below the default value of InitialTenuringThreshold of 7
  57       "-XX:MaxTenuringThreshold=1",
  58       "-version"
  59       );
  60 
  61     OutputAnalyzer output = new OutputAnalyzer(pb.start());
  62     output.shouldHaveExitValue(0);
  63     // successful tests
  64     runWithThresholds(0, 10, false);
  65     runWithThresholds(5, 5, false);
  66     runWithThresholds(8, 16, false);
  67     // failing tests
  68     runWithThresholds(10, 0, true);
  69     runWithThresholds(9, 8, true);
  70     runWithThresholds(-1, 8, true);
  71     runWithThresholds(8, -1, true);
  72     runWithThresholds(32, 8, true);
  73     runWithThresholds(8, 33, true);
  74   }
  75 }