/*
 * $Id$
 *
 * Copyright 2007 by Mark Hall
 *
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (the "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the License.
 *
 * The Original Code is 'iText, a free JAVA-PDF library'.
 *
 * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
 * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
 * All Rights Reserved.
 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
 * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
 * Co-Developer of the code is Mark Hall. Portions created by the Co-Developer are
 * Copyright (C) 2006 by Mark Hall. All Rights Reserved
 *
 * Contributor(s): all the names of the contributors are added in the source code
 * where applicable.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * LGPL license (the ?GNU LIBRARY GENERAL PUBLIC LICENSE?), in which case the
 * provisions of LGPL are applicable instead of those above.  If you wish to
 * allow use of your version of this file only under the terms of the LGPL
 * License and not to allow others to use your version of this file under
 * the MPL, indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by the LGPL.
 * If you do not delete the provisions above, a recipient may use your version
 * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the MPL as stated above or under the terms of the GNU
 * Library General Public License as published by the Free Software Foundation;
 * either version 2 of the License, or 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 Library general Public License for more
 * details.
 *
 * If you didn't download this code from the following link, you should check if
 * you aren't using an obsolete version:
 * http://www.lowagie.com/iText/
 */

package com.lowagie.text.rtf;

import java.io.ByteArrayOutputStream;
import java.io.IOException;

import org.junit.Assert;
import org.junit.Test;

import com.lowagie.text.DocWriter;
import com.lowagie.text.rtf.document.RtfDocument;

/**
 * The <code>RtfTestBase</code> is a junit test case that provides
 * helper methods for the actual RTF test cases.
 * 
 * @version $Id$
 * @author Mark Hall (Mark.Hall@mail.room3b.eu)
 * @since 2.0.8
 */
public class RtfTestBase {
    
    /**
     * The <code>RtfDocument</code> to use for testing.
     */
    protected RtfDocument rtfDoc = null;
    
    /**
     * Constructs a new <code>RtfTestBase</code>, initializing
     * the <code>RtfDocument</code>.
     */
    public RtfTestBase() {
        this.rtfDoc = new RtfDocument();
    }
    
    /**
     * Asserts that the content of the <code>ByteArrayOutputStream</code> equals
     * the pattern specified.
     * 
     * @param pattern The string pattern to check against
     * @param out The <code>ByteArrayOutputStream</code> containing the RTF code to check.
     * 
     * @throws IOException On I/O errors.
     */
    protected void assertEquals(String pattern, ByteArrayOutputStream out) throws IOException {
        out.close();
        Assert.assertEquals(pattern, new String(out.toByteArray()));
    }
    
    /**
     * Tests that the <code>RtfTestBase</code> works correctly for empty text.
     * 
     * @throws IOException On I/O errors.
     */
    @Test
    public void testSelfEmpty() throws IOException {
        assertEquals("", new ByteArrayOutputStream());
    }
    
    /**
     * Tests that the <code>RtfTestBase</code> works correctly for special characters.
     * 
     * @throws IOException On I/O errors.
     */
    @Test
    public void testSelfSpecialChar() throws IOException {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        out.write(DocWriter.getISOBytes("\n\t"));
        assertEquals("\n\t", out);
    }
    
    /**
     * Tests that the <code>RtfTestBase</code> works correctly for arbitrary text.
     * 
     * @throws IOException On I/O errors.
     */
    @Test
    public void testRandomText() throws IOException {
        StringBuffer text = new StringBuffer();
        for(int i = 0; i < 100; i++) {
            text.append(Character.toString((char) (Math.random() * 52)));
        }
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        out.write(DocWriter.getISOBytes(text.toString()));
        assertEquals(text.toString(), out);
    }
}