test-sources/org/apache/batik/parser/LengthParserTest.java

/*

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                   The Apache Software License, Version 1.1
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 Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.

 Redistribution and use in source and binary forms, with or without modifica-
 tion, are permitted provided that the following conditions are met:

 1. Redistributions of  source code must  retain the above copyright  notice,
    this list of conditions and the following disclaimer.

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    this list of conditions and the following disclaimer in the documentation
    and/or other materials provided with the distribution.

 3. The end-user documentation included with the redistribution, if any, must
    include  the following  acknowledgment:  "This product includes  software
    developed  by the  Apache Software Foundation  (http://www.apache.org/)."
    Alternately, this  acknowledgment may  appear in the software itself,  if
    and wherever such third-party acknowledgments normally appear.

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    used to  endorse or promote  products derived from  this software without
    prior written permission. For written permission, please contact
    apache@apache.org.

 5. Products  derived from this software may not  be called "Apache", nor may
    "Apache" appear  in their name,  without prior written permission  of the
    Apache Software Foundation.

 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 FITNESS  FOR A PARTICULAR  PURPOSE ARE  DISCLAIMED.  IN NO  EVENT SHALL  THE
 APACHE SOFTWARE  FOUNDATION  OR ITS CONTRIBUTORS  BE LIABLE FOR  ANY DIRECT,
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 Apache Software Foundation, please see <http://www.apache.org/>.

*/

package org.apache.batik.parser;

import java.io.*;

import org.apache.batik.test.*;

/**
 * To test the length parser.
 *
 * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
 * @version $Id$
 */
public class LengthParserTest extends AbstractTest {

    protected String sourceLength;
    protected String destinationLength;

    protected StringBuffer buffer;
    protected String resultLength;

    /**
     * Creates a new LengthParserTest.
     * @param slength The length to parse.
     * @param dlength The length after serialization.
     */
    public LengthParserTest(String slength, String dlength) {
        sourceLength = slength;
        destinationLength = dlength;
    }

    public TestReport runImpl() throws Exception {
        LengthParser pp = new LengthParser();
        pp.setLengthHandler(new TestHandler());

        try {
            pp.parse(new StringReader(sourceLength));
        } catch (ParseException e) {
            DefaultTestReport report = new DefaultTestReport(this);
            report.setErrorCode("parse.error");
            report.addDescriptionEntry("exception.text", e.getMessage());
            report.setPassed(false);
            return report;
        }

        if (!destinationLength.equals(resultLength)) {
            DefaultTestReport report = new DefaultTestReport(this);
            report.setErrorCode("invalid.parsing.events");
            report.addDescriptionEntry("expected.text", destinationLength);
            report.addDescriptionEntry("generated.text", resultLength);
            report.setPassed(false);
            return report;
        }

        return reportSuccess();
    }

    class TestHandler extends DefaultLengthHandler {
        public TestHandler() {}

        public void startLength() throws ParseException {
            buffer = new StringBuffer();
        }
        
        public void lengthValue(float v) throws ParseException {
            buffer.append(v);
        }

        public void em() throws ParseException {
            buffer.append("em");
        }

        public void ex() throws ParseException {
            buffer.append("ex");
        }

        public void in() throws ParseException {
            buffer.append("in");
        }

        public void cm() throws ParseException {
            buffer.append("cm");
        }

        public void mm() throws ParseException {
            buffer.append("mm");
        }

        public void pc() throws ParseException {
            buffer.append("pc");
        }

        public void pt() throws ParseException {
            buffer.append("pt");
        }

        public void px() throws ParseException {
            buffer.append("px");
        }

        public void percentage() throws ParseException {
            buffer.append("%");
        }

        public void endLength() throws ParseException {
            resultLength = buffer.toString();
        }
    }
}