1 /*
   2  * Copyright (c) 2013, 2015, 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 TestHeapFreeRatio
  26  * @key gc
  27  * @bug 8025661
  28  * @summary Test parsing of -Xminf and -Xmaxf
  29  * @library /testlibrary
  30  * @modules java.base/sun.misc
  31  *          java.management
  32  * @run main/othervm TestHeapFreeRatio
  33  */
  34 
  35 import jdk.test.lib.*;
  36 
  37 public class TestHeapFreeRatio {
  38 
  39   enum Validation {
  40     VALID,
  41     MIN_INVALID,
  42     MAX_INVALID,
  43     COMBINATION_INVALID
  44   }
  45 
  46   private static void testMinMaxFreeRatio(String min, String max, Validation type) throws Exception {
  47     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  48         "-Xminf" + min,
  49         "-Xmaxf" + max,
  50         "-version");
  51     OutputAnalyzer output = new OutputAnalyzer(pb.start());
  52 
  53     switch (type) {
  54     case VALID:
  55       output.shouldNotContain("Error");
  56       output.shouldHaveExitValue(0);
  57       break;
  58     case MIN_INVALID:
  59       output.shouldContain("Bad min heap free percentage size: -Xminf" + min);
  60       output.shouldContain("Error");
  61       output.shouldHaveExitValue(1);
  62       break;
  63     case MAX_INVALID:
  64       output.shouldContain("Bad max heap free percentage size: -Xmaxf" + max);
  65       output.shouldContain("Error");
  66       output.shouldHaveExitValue(1);
  67       break;
  68     case COMBINATION_INVALID:
  69       output.shouldContain("must be less than or equal to MaxHeapFreeRatio");
  70       output.shouldContain("Error");
  71       output.shouldHaveExitValue(1);
  72       break;
  73     default:
  74       throw new IllegalStateException("Must specify expected validation type");
  75     }
  76 
  77     System.out.println(output.getOutput());
  78   }
  79 
  80   public static void main(String args[]) throws Exception {
  81     testMinMaxFreeRatio( "0.1", "0.5", Validation.VALID);
  82     testMinMaxFreeRatio(  ".1",  ".5", Validation.VALID);
  83     testMinMaxFreeRatio( "0.5", "0.5", Validation.VALID);
  84 
  85     testMinMaxFreeRatio("-0.1", "0.5", Validation.MIN_INVALID);
  86     testMinMaxFreeRatio( "1.1", "0.5", Validation.MIN_INVALID);
  87     testMinMaxFreeRatio("=0.1", "0.5", Validation.MIN_INVALID);
  88     testMinMaxFreeRatio("0.1f", "0.5", Validation.MIN_INVALID);
  89     testMinMaxFreeRatio(
  90                      "INVALID", "0.5", Validation.MIN_INVALID);
  91     testMinMaxFreeRatio(
  92                   "2147483647", "0.5", Validation.MIN_INVALID);
  93 
  94     testMinMaxFreeRatio( "0.1", "-0.5", Validation.MAX_INVALID);
  95     testMinMaxFreeRatio( "0.1",  "1.5", Validation.MAX_INVALID);
  96     testMinMaxFreeRatio( "0.1", "0.5f", Validation.MAX_INVALID);
  97     testMinMaxFreeRatio( "0.1", "=0.5", Validation.MAX_INVALID);
  98     testMinMaxFreeRatio(
  99                      "0.1",  "INVALID", Validation.MAX_INVALID);
 100     testMinMaxFreeRatio(
 101                    "0.1", "2147483647", Validation.MAX_INVALID);
 102 
 103     testMinMaxFreeRatio( "0.5",  "0.1", Validation.COMBINATION_INVALID);
 104     testMinMaxFreeRatio(  ".5",  ".10", Validation.COMBINATION_INVALID);
 105     testMinMaxFreeRatio("0.12","0.100", Validation.COMBINATION_INVALID);
 106   }
 107 }