/*
 * File   : $Source: /usr/local/cvs/opencms/test/org/opencms/i18n/TestCmsEncoder.java,v $
 * Date   : $Date: 2006/03/27 14:52:51 $
 * Version: $Revision: 1.13 $
 *
 * This library is part of OpenCms -
 * the Open Source Content Mananagement System
 *
 * Copyright (c) 2005 Alkacon Software GmbH (http://www.alkacon.com)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * For further information about Alkacon Software GmbH, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.opencms.i18n;

import java.io.ByteArrayOutputStream;
import java.io.OutputStreamWriter;
import java.nio.charset.Charset;

import junit.framework.TestCase;

/**
 * Tests for the CmsEncoder.<p>
 * 
 * @author Alexander Kandzior 
 *  
 * @version $Revision: 1.13 $
 * 
 * @since 6.0.0
 */
public class TestCmsEncoder extends TestCase {

    private static final String ENC_ISO_8859_1 = "ISO-8859-1";
    private static final String ENC_ISO_8859_15 = "ISO-8859-15";
    private static final String ENC_US_ASCII = "US-ASCII";
    private static final String ENC_UTF_8 = CmsEncoder.ENCODING_UTF_8;
    private static final String ENC_WINDOWS_1252 = "Cp1252";

    // working around encoding issues (e.g. of CVS) by using unicode values 
    // the values of C_STRING_1 are: ae oe ue Ae Oe Ue scharfes-s euro-symbol
    private static final String STRING_1 = "Test: \u00e4\u00f6\u00fc\u00c4\u00d6\u00dc\u00df\u20ac";
    private static final String STRING_2 = "Test: \u00e4\u00f6\u00fc\u00c4\u00d6\u00dc\u00df&#8364;";
    private static final String STRING_3 = "Test: &#228;&#246;&#252;&#196;&#214;&#220;&#223;&#8364;";
    private static final String STRING_4 = "\u00e4\u00f6\u00fc\u20ac#|#12|&#12|&#;\u00c4\u00d6\u00dctest";
    private static final String STRING_5 = "&#228;&#246;&#252;&#8364;#|#12|&#12|&#;&#196;&#214;&#220;test";

    private static final String[][] TESTS_DECODE = {
        {STRING_3, STRING_2, ENC_ISO_8859_1},
        {STRING_3, STRING_1, ENC_ISO_8859_15},
        {STRING_3, STRING_1, ENC_UTF_8},
        {STRING_3, STRING_3, ENC_US_ASCII},
        {STRING_3, STRING_1, ENC_WINDOWS_1252},
        {STRING_5, STRING_4, ENC_UTF_8}};

    private static final String[][] TESTS_ENCODE = {
        {STRING_1, STRING_2, ENC_ISO_8859_1},
        {STRING_1, STRING_1, ENC_ISO_8859_15},
        {STRING_1, STRING_1, ENC_UTF_8},
        {STRING_1, STRING_3, ENC_US_ASCII},
        {STRING_1, STRING_1, ENC_WINDOWS_1252},
        {STRING_4, STRING_5, ENC_US_ASCII}};

    /**
     * @see CmsEncoder#decodeHtmlEntities(String, String) 
     */
    public void testDecodeHtmlEntities() {

        for (int i = 0; i < TESTS_DECODE.length; i++) {
            String source = TESTS_DECODE[i][0];
            String dest = TESTS_DECODE[i][1];
            String encoding = TESTS_DECODE[i][2];

            String result = CmsEncoder.decodeHtmlEntities(source, encoding);
            assertEquals(result, dest);
        }
    }

    /**
     * Tests decoding german "umlaute".<p>
     *
     */
    public void testDecodeUmlauts() {

        Charset defaultCs = Charset.forName(new OutputStreamWriter(new ByteArrayOutputStream()).getEncoding());
        System.out.println("Default Charset: " + defaultCs.name());
        String param = "%C3%BC"; // utf-8 bytes for '