jdk8-mips64-public/hotspot: test/gc/arguments/TestDynMaxHeapFreeRatio.java@e2976043eac3

8039489: Refactor test framework for dynamic VM options
Reviewed-by: jmasa, ehelin, jwilhelm

     1 /*

     2  * Copyright (c) 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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    24 import static com.oracle.java.testlibrary.Asserts.assertEQ;

    25 import static com.oracle.java.testlibrary.Asserts.assertFalse;

    26 import static com.oracle.java.testlibrary.Asserts.assertTrue;

    27 import com.oracle.java.testlibrary.DynamicVMOption;

    29 /**

    30  * @test TestDynMaxHeapFreeRatio

    31  * @bug 8028391

    32  * @summary Verify that MaxHeapFreeRatio flag is manageable

    33  * @library /testlibrary

    34  * @run main TestDynMaxHeapFreeRatio

    35  * @run main/othervm -XX:MinHeapFreeRatio=0 -XX:MaxHeapFreeRatio=100 TestDynMaxHeapFreeRatio

    36  * @run main/othervm -XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=50 -XX:-UseAdaptiveSizePolicy TestDynMaxHeapFreeRatio

    37  * @run main/othervm -XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=50 TestDynMaxHeapFreeRatio

    38  * @run main/othervm -XX:MinHeapFreeRatio=51 -XX:MaxHeapFreeRatio=52 TestDynMaxHeapFreeRatio

    39  * @run main/othervm -XX:MinHeapFreeRatio=75 -XX:MaxHeapFreeRatio=100 TestDynMaxHeapFreeRatio

    40  */

    41 public class TestDynMaxHeapFreeRatio {

    43     public static void main(String args[]) throws Exception {

    45         // low boundary value

    46         int minValue = DynamicVMOption.getInt("MinHeapFreeRatio");

    47         System.out.println("MinHeapFreeRatio= " + minValue);

    49         String badValues[] = {

    50             null,

    51             "",

    52             "not a number",

    53             "8.5", "-0.01",

    54             Integer.toString(Integer.MIN_VALUE),

    55             Integer.toString(Integer.MAX_VALUE),

    56             Integer.toString(minValue - 1),

    57             "-1024", "-1", "101", "1997"

    58         };

    60         String goodValues[] = {

    61             Integer.toString(minValue),

    62             Integer.toString(minValue + 1),

    63             Integer.toString((minValue + 100) / 2),

    64             "99", "100"

    65         };

    67         DynamicVMOption option = new DynamicVMOption("MaxHeapFreeRatio");

    69         assertTrue(option.isWriteable(), "Option " + option.name

    70                 + " is expected to be writable");

    72         for (String v : badValues) {

    73             assertFalse(option.isValidValue(v),

    74                     "'" + v + "' is expected to be illegal for flag " + option.name);

    75         }

    76         for (String v : goodValues) {

    77             option.setValue(v);

    78             String newValue = option.getValue();

    79             assertEQ(v, newValue);

    80         }

    81     }

    82 }

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