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
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  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  * @build com.oracle.java.testlibrary.*
  31  * @run main/othervm TestInitialTenuringThreshold
  32  * @author thomas.schatzl@oracle.com
  33  */
  34 
  35 import com.oracle.java.testlibrary.*;
  36 
  37 public class TestInitialTenuringThreshold {
  38 
  39   public static void runWithThresholds(int initial, int max, boolean shouldfail) throws Exception {
  40     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  41       "-XX:InitialTenuringThreshold=" + String.valueOf(initial),
  42       "-XX:MaxTenuringThreshold=" + String.valueOf(max),
  43       "-version"
  44       );
  45 
  46     OutputAnalyzer output = new OutputAnalyzer(pb.start());
  47     if (shouldfail) {
  48       output.shouldHaveExitValue(1);
  49     } else {
  50       output.shouldHaveExitValue(0);
  51     }
  52   }
  53 
  54 
  55   public static void main(String args[]) throws Exception {
  56     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  57       // some value below the default value of InitialTenuringThreshold of 7
  58       "-XX:MaxTenuringThreshold=1",
  59       "-version"
  60       );
  61 
  62     OutputAnalyzer output = new OutputAnalyzer(pb.start());
  63     output.shouldHaveExitValue(0);
  64     // successful tests
  65     runWithThresholds(0, 10, false);
  66     runWithThresholds(5, 5, false);
  67     runWithThresholds(8, 16, false);
  68     // failing tests
  69     runWithThresholds(10, 0, true);
  70     runWithThresholds(9, 8, true);
  71     runWithThresholds(-1, 8, true);
  72     runWithThresholds(8, -1, true);
  73     runWithThresholds(16, 8, true);
  74     runWithThresholds(8, 17, true);
  75   }
  76 }
  77