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 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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package jdk.vm.ci.hotspot.test;

import java.lang.reflect.Field;

import java.lang.reflect.Method;

import java.util.HashMap;

import java.util.Map;

import org.junit.Assert;

import org.junit.Test;

import jdk.vm.ci.services.Services;

public class TestServices {

    @SuppressWarnings("unchecked")

    @Test

    public void serializeSavedPropertiesTest() throws Exception {

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

        f.setAccessible(true);

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

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

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

        serializeProperties.setAccessible(true);

        deserializeProperties.setAccessible(true);

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

        String[] names = {

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

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

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

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

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

        };

        String[] values = {

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

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

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

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

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

        };

        for (String name : names) {

            for (String value : values) {

                props.put(name, value);

            }

        }

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

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

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

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

            String expect = props.get(name);

            String actual = newProps.get(name);

            Assert.assertEquals(expect, actual);

        }

    }

}