package org.apache.lucene.analysis.snowball;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2004 The Apache Software Foundation. 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
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* 2. Redistributions in binary form must reproduce the above copyright
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* 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.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache Lucene" must not be used to endorse or promote products
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* 5. Products derived from this software may not be called "Apache",
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*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
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*/
import java.io.*;
import junit.framework.*;
import org.apache.lucene.analysis.*;
public class TestSnowball extends TestCase {
public void assertAnalyzesTo(Analyzer a,
String input,
String[] output) throws Exception {
TokenStream ts = a.tokenStream("dummy", new StringReader(input));
for (int i = 0; i < output.length; i++) {
Token t = ts.next();
assertNotNull(t);
assertEquals(output[i], t.termText());
}
assertNull(ts.next());
ts.close();
}
public void testEnglish() throws Exception {
Analyzer a = new SnowballAnalyzer("English");
assertAnalyzesTo(a, "he abhorred accents",
new String[]{"he", "abhor", "accent"});
}
public void testFilterTokens() throws Exception {
final Token tok = new Token("accents", 2, 7, "wrd");
tok.setPositionIncrement(3);
SnowballFilter filter = new SnowballFilter(
new TokenStream() {
public Token next() {
return tok;
}
},
"English"
);
Token newtok = filter.next();
assertEquals("accent", newtok.termText());
assertEquals(2, newtok.startOffset());
assertEquals(7, newtok.endOffset());
assertEquals("wrd", newtok.type());
assertEquals(3, newtok.getPositionIncrement());
}
}
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