net.sf.classifier4J.DefaultTokenizerTest.java Source code

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Here is the source code for net.sf.classifier4J.DefaultTokenizerTest.java

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/*
 * ====================================================================
 * 
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2003 Nick Lothian. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, 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. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, 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 acknowlegement:  
 *       "This product includes software developed by the 
 *        developers of Classifier4J (http://classifier4j.sf.net/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The name "Classifier4J" must not be used to endorse or promote 
 *    products derived from this software without prior written 
 *    permission. For written permission, please contact   
 *    http://sourceforge.net/users/nicklothian/.
 *
 * 5. Products derived from this software may not be called 
 *    "Classifier4J", nor may "Classifier4J" appear in their names 
 *    without prior written permission. For written permission, please 
 *    contact http://sourceforge.net/users/nicklothian/.
 *
 * 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, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 */

package net.sf.classifier4J;

import junit.framework.TestCase;
import junit.textui.TestRunner;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class DefaultTokenizerTest extends TestCase {

    private Log log = LogFactory.getLog(this.getClass());

    public DefaultTokenizerTest(String name) {
        super(name);
    }

    public void testConstructors() {
        ITokenizer tok = null;

        try {
            tok = new DefaultTokenizer(null);
            fail("Shouldn't be able to set a tokenizer of null");
        } catch (IllegalArgumentException e) {
            assertTrue(true);
        }

        tok = new DefaultTokenizer("");

        tok = new DefaultTokenizer(DefaultTokenizer.BREAK_ON_WHITESPACE);

        tok = new DefaultTokenizer(DefaultTokenizer.BREAK_ON_WORD_BREAKS);

        try {
            tok = new DefaultTokenizer(43);
            fail("Shouldn't be able to set a tokenizer of type 43");
        } catch (IllegalArgumentException e) {
            assertTrue(true);
        }
    }

    public void testTokenize() {

        ITokenizer tok = null;
        String words[] = null;

        tok = new DefaultTokenizer(DefaultTokenizer.BREAK_ON_WHITESPACE);
        words = tok.tokenize("My very,new string!");

        assertEquals(3, words.length);
        assertEquals("My", words[0]);
        assertEquals("very,new", words[1]);
        assertEquals("string!", words[2]);

        tok = new DefaultTokenizer(DefaultTokenizer.BREAK_ON_WORD_BREAKS);
        words = tok.tokenize("My very,new-string!and/more(NIO)peter's 1.4");

        assertEquals(11, words.length);
        assertEquals("My", words[0]);
        assertEquals("very", words[1]);
        assertEquals("new", words[2]);
        assertEquals("string", words[3]);
        assertEquals("and", words[4]);
        assertEquals("more", words[5]);
        assertEquals("NIO", words[6]);

        //todo: Shouldn't this be "peter's", instead of "peter" & "s"?
        assertEquals("peter", words[7]);
        assertEquals("s", words[8]);

        //todo: Shouldn't this be "1.4", instead of "1" & "4"?
        assertEquals("1", words[9]);
        assertEquals("4", words[10]);
    }

    public static void main(String[] args) throws Exception {
        TestRunner.run(DefaultTokenizerTest.class);
    }
}