1 /*

     2  * Copyright (c) 2019, 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 package jdk.vm.ci.hotspot.test;

    24 

    25 import java.lang.reflect.Field;

    26 import java.lang.reflect.Method;

    27 import java.util.HashMap;

    28 import java.util.Map;

    29 

    30 import org.junit.Assert;

    31 import org.junit.Test;

    32 

    33 import jdk.vm.ci.services.Services;

    34 

    35 public class TestServices {

    36 

    37     @SuppressWarnings("unchecked")

    38     @Test

    39     public void serializeSavedPropertiesTest() throws Exception {

    40 

    41         Field f = Services.class.getDeclaredField("MAX_UTF8_PROPERTY_STRING_LENGTH");

    42         f.setAccessible(true);

    43         int maxUtf8PropertyStringLength = (int) f.get(null);

    44 

    45         Method serializeProperties = Services.class.getDeclaredMethod("serializeProperties", Map.class);

    46         Method deserializeProperties = Services.class.getDeclaredMethod("deserializeProperties", byte[].class);

    47         serializeProperties.setAccessible(true);

    48         deserializeProperties.setAccessible(true);

    49 

    50         Map<String, String> props = new HashMap<>(Services.getSavedProperties());

    51         String[] names = {

    52                         new String(new char[maxUtf8PropertyStringLength - 100]).replace('\0', 'x'),

    53                         new String(new char[maxUtf8PropertyStringLength - 1]).replace('\0', 'x'),

    54                         new String(new char[maxUtf8PropertyStringLength]).replace('\0', 'y'),

    55                         new String(new char[maxUtf8PropertyStringLength + 1]).replace('\0', 'z'),

    56                         new String(new char[maxUtf8PropertyStringLength + 100]).replace('\0', 'z')

    57         };

    58         String[] values = {

    59                         new String(new char[maxUtf8PropertyStringLength - 100]).replace('\0', '1'),

    60                         new String(new char[maxUtf8PropertyStringLength - 1]).replace('\0', '1'),

    61                         new String(new char[maxUtf8PropertyStringLength]).replace('\0', '2'),

    62                         new String(new char[maxUtf8PropertyStringLength + 1]).replace('\0', '1'),

    63                         new String(new char[maxUtf8PropertyStringLength + 100]).replace('\0', '3')

    64         };

    65         for (String name : names) {

    66             for (String value : values) {

    67                 props.put(name, value);

    68             }

    69         }

    70 

    71         byte[] data = (byte[]) serializeProperties.invoke(null, props);

    72 

    73         Map<String, String> newProps = (Map<String, String>) deserializeProperties.invoke(null, data);

    74 

    75         Assert.assertEquals(props.size(), newProps.size());

    76         for (String name : props.keySet()) {

    77             String expect = props.get(name);

    78             String actual = newProps.get(name);

    79             Assert.assertEquals(expect, actual);

    80         }

    81     }

    82 }