// HTMLParser Library $Name: v1_6 $ - A java-based parser for HTML// http://sourceforge.org/projects/htmlparser// Copyright (C) 2004 Derrick Oswald//// Revision Control Information//// $Source: /cvsroot/htmlparser/htmlparser/src/org/htmlparser/tests/lexerTests/SourceTests.java,v $// $Author: derrickoswald $// $Date: 2004/07/31 16:42:31 $// $Revision: 1.18 $//// 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.//// 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.htmlparser.tests.lexerTests;import java.io.BufferedInputStream;import java.io.ByteArrayInputStream;import java.io.IOException;import java.io.InputStreamReader;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;import org.htmlparser.lexer.InputStreamSource;import org.htmlparser.lexer.Stream;import org.htmlparser.lexer.Source;import org.htmlparser.lexer.StringSource;import org.htmlparser.tests.ParserTestCase;public class SourceTests extends ParserTestCase{    static    {        System.setProperty ("org.htmlparser.tests.lexerTests.SourceTests", "SourceTests");    }    /**     * The default charset.     * This should be <code>ISO-8859-1</code>,     * see RFC 2616 (http://www.ietf.org/rfc/rfc2616.txt?number=2616) section 3.7.1     * Another alias is "8859_1".     */    public static final String DEFAULT_CHARSET = "ISO-8859-1";    /**     * Test the first level stream class.     */    public SourceTests (String name)    {        super (name);    }    /**     * Test initialization with a null value.     */    public void testInputStreamSourceNull () throws IOException    {        Source source;        source = new InputStreamSource (null);        assertTrue ("erroneous character", -1 == source.read ());    }    /**     * Test initialization of a InputStreamSource with a zero length byte array.     */    public void testInputStreamSourceEmpty () throws IOException    {        Source source;        source = new InputStreamSource (new Stream (new ByteArrayInputStream (new byte[0])), null);        assertTrue ("erroneous character", -1 == source.read ());    }    /**     * Test initialization of a InputStreamSource with an input stream having only one byte.     */    public void testInputStreamSourceOneByte () throws IOException    {        Source source;        source = new InputStreamSource (new Stream (new ByteArrayInputStream (new byte[] { (byte)0x42 })), null);        assertTrue ("erroneous character", 'B' == source.read ());        assertTrue ("extra character", -1 == source.read ());    }    /**     * Test closing a InputStreamSource.     */    public void testInputStreamSourceClose () throws IOException    {        Source source;        source = new InputStreamSource (new Stream (new ByteArrayInputStream ("hello word".getBytes ())), null);        assertTrue ("no character", -1 != source.read ());        source.destroy ();        try        {            source.read ();            fail ("not closed");        }        catch (IOException ioe)        {            // expected outcome        }   }    /**     * Test resetting a InputStreamSource.     */    public void testInputStreamSourceReset () throws IOException    {        String reference;        Source source;        StringBuffer buffer;        int c;        reference = "Now is the time for all good men to come to the aid of the party";        source = new InputStreamSource (new Stream (new ByteArrayInputStream (reference.getBytes (DEFAULT_CHARSET))), null);        buffer = new StringBuffer (reference.length ());        while (-1 != (c = source.read ()))            buffer.append ((char)c);        assertTrue ("string incorrect", reference.equals (buffer.toString ()));        source.reset ();        buffer.setLength (0);        while (-1 != (c = source.read ()))            buffer.append ((char)c);        assertTrue ("string incorrect", reference.equals (buffer.toString ()));        source.close ();    }    /**     * Test resetting a InputStreamSource in the middle of reading.     */    public void testInputStreamSourceMidReset () throws IOException    {        String reference;        Source source;        StringBuffer buffer;        int c;        reference = "Now is the time for all good men to come to the aid of the party";        source = new InputStreamSource (new Stream (new ByteArrayInputStream (reference.getBytes (DEFAULT_CHARSET))), null);        buffer = new StringBuffer (reference.length ());        for (int i = 0; i < 25; i++)            buffer.append ((char)source.read ());        source.reset ();        for (int i = 0; i < 25; i++)            source.read ();        while (-1 != (c = source.read ()))            buffer.append ((char)c);        assertTrue ("string incorrect", reference.equals (buffer.toString ()));        source.close ();    }    /**     * Test mark/reset of a InputStreamSource in the middle of reading.     */    public void testInputStreamSourceMarkReset () throws IOException    {        String reference;        Source source;        StringBuffer buffer;        int c;        reference = "Now is the time for all good men to come to the aid of the party";        source = new InputStreamSource (new Stream (new ByteArrayInputStream (reference.getBytes (DEFAULT_CHARSET))), null);        assertTrue ("not markable", source.markSupported ());        buffer = new StringBuffer (reference.length ());        for (int i = 0; i < 25; i++)            buffer.append ((char)source.read ());        source.mark (88);        for (int i = 0; i < 25; i++)            source.read ();        source.reset ();        while (-1 != (c = source.read ()))            buffer.append ((char)c);        assertTrue ("string incorrect", reference.equals (buffer.toString ()));        source.close ();    }    /**     * Test skipping a InputStreamSource.     */    public void testInputStreamSourceSkip () throws IOException    {        String part1;        String part2;        String part3;        String reference;        Source source;        StringBuffer buffer;        int c;        part1 = "Now is the time ";        part2 = "for all good men ";        part3 = "to come to the aid of the party";        reference = part1 + part2 + part3;        source = new InputStreamSource (new Stream (new ByteArrayInputStream (reference.getBytes (DEFAULT_CHARSET))), null);        buffer = new StringBuffer (reference.length ());        for (int i = 0; i < part1.length (); i++)            buffer.append ((char)source.read ());        source.skip (part2.length ());        while (-1 != (c = source.read ()))            buffer.append ((char)c);        assertTrue ("string incorrect", (part1 + part3).equals (buffer.toString ()));        source.close ();    }    /**     * Test multi-byte read with a InputStreamSource.     */    public void testInputStreamSourceMultByte () throws IOException    {        String reference;        Source source;        char[] buffer;        reference = "Now is the time for all good men to come to the aid of the party";        source = new InputStreamSource (new Stream (new ByteArrayInputStream (reference.getBytes (DEFAULT_CHARSET))), null);        buffer = new char[reference.length ()];        source.read (buffer, 0, buffer.length);        assertTrue ("string incorrect", reference.equals (new String (buffer)));        assertTrue ("extra character", -1 == source.read ());        source.close ();    }    /**     * Test positioned multi-byte read with a InputStreamSource.     */    public void testInputStreamSourcePositionedMultByte () throws IOException    {        String part1;        String part2;        String part3;        String reference;        Source source;        char[] buffer;        int length;        part1 = "Now is the time ";        part2 = "for all good men ";        part3 = "to come to the aid of the party";        reference = part1 + part2 + part3;        source = new InputStreamSource (new Stream (new ByteArrayInputStream (reference.getBytes (DEFAULT_CHARSET))), null);        buffer = new char[reference.length ()];        for (int i = 0; i < part1.length (); i++)            buffer[i] = (char)source.read ();        length = source.read (buffer, part1.length (), part2.length ());        assertTrue ("incorrect length", part2.length () == length);        length += part1.length ();        for (int i = 0; i < part3.length (); i++)            buffer[i + length] = (char)source.read ();        assertTrue ("string incorrect", reference.equals (new String (buffer)));        assertTrue ("extra character", -1 == source.read ());        source.close ();    }    /**     * Test ready of a InputStreamSource.     */    public void testInputStreamSourceReady () throws IOException    {        Source source;