package org.apache.lucene.analysis.ar;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.core.KeywordTokenizer;
import org.apache.lucene.analysis.miscellaneous.KeywordMarkerFilter;
import org.apache.lucene.analysis.util.CharArraySet;
/**
* Test the Arabic Normalization Filter
*
*/
public class TestArabicStemFilter extends BaseTokenStreamTestCase {
public void testAlPrefix() throws IOException {
check("الحسن", "حسن");
}
public void testWalPrefix() throws IOException {
check("والحسن", "حسن");
}
public void testBalPrefix() throws IOException {
check("بالحسن", "حسن");
}
public void testKalPrefix() throws IOException {
check("كالحسن", "حسن");
}
public void testFalPrefix() throws IOException {
check("فالحسن", "حسن");
}
public void testLlPrefix() throws IOException {
check("للاخر", "اخر");
}
public void testWaPrefix() throws IOException {
check("وحسن", "حسن");
}
public void testAhSuffix() throws IOException {
check("زوجها", "زوج");
}
public void testAnSuffix() throws IOException {
check("ساهدان", "ساهد");
}
public void testAtSuffix() throws IOException {
check("ساهدات", "ساهد");
}
public void testWnSuffix() throws IOException {
check("ساهدون", "ساهد");
}
public void testYnSuffix() throws IOException {
check("ساهدين", "ساهد");
}
public void testYhSuffix() throws IOException {
check("ساهديه", "ساهد");
}
public void testYpSuffix() throws IOException {
check("ساهدية", "ساهد");
}
public void testHSuffix() throws IOException {
check("ساهده", "ساهد");
}
public void testPSuffix() throws IOException {
check("ساهدة", "ساهد");
}
public void testYSuffix() throws IOException {
check("ساهدي", "ساهد");
}
public void testComboPrefSuf() throws IOException {
check("وساهدون", "ساهد");
}
public void testComboSuf() throws IOException {
check("ساهدهات", "ساهد");
}
public void testShouldntStem() throws IOException {
check("الو", "الو");
}
public void testNonArabic() throws IOException {
check("English", "English");
}
public void testWithKeywordAttribute() throws IOException {
CharArraySet set = new CharArraySet(TEST_VERSION_CURRENT, 1, true);
set.add("ساهدهات");
ArabicLetterTokenizer tokenStream = new ArabicLetterTokenizer(TEST_VERSION_CURRENT, new StringReader("ساهدهات"));
ArabicStemFilter filter = new ArabicStemFilter(new KeywordMarkerFilter(tokenStream, set));
assertTokenStreamContents(filter, new String[]{"ساهدهات"});
}
private void check(final String input, final String expected) throws IOException {
ArabicLetterTokenizer tokenStream = new ArabicLetterTokenizer(TEST_VERSION_CURRENT, new StringReader(input));
ArabicStemFilter filter = new ArabicStemFilter(tokenStream);
assertTokenStreamContents(filter, new String[]{expected});
}
public void testEmptyTerm() throws IOException {
Analyzer a = new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
Tokenizer tokenizer = new KeywordTokenizer(reader);
return new TokenStreamComponents(tokenizer, new ArabicStemFilter(tokenizer));
}
};
checkOneTermReuse(a, "", "");
}
}