package org.apache.lucene.analysis.icu;
/**
* 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 org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.core.WhitespaceTokenizer;
/**
* Tests ICUFoldingFilter
*/
public class TestICUFoldingFilter extends BaseTokenStreamTestCase {
public void testDefaults() throws IOException {
Analyzer a = new Analyzer() {
@Override
public TokenStream tokenStream(String fieldName, Reader reader) {
return new ICUFoldingFilter(
new WhitespaceTokenizer(TEST_VERSION_CURRENT, reader));
}
};
// case folding
assertAnalyzesTo(a, "This is a test", new String[] { "this", "is", "a", "test" });
// case folding
assertAnalyzesTo(a, "Ruß", new String[] { "russ" });
// case folding with accent removal
assertAnalyzesTo(a, "ΜΆΪΟΣ", new String[] { "μαιοσ" });
assertAnalyzesTo(a, "Μάϊος", new String[] { "μαιοσ" });
// supplementary case folding
assertAnalyzesTo(a, "𐐖", new String[] { "𐐾" });
// normalization
assertAnalyzesTo(a, "ﴳﴺﰧ", new String[] { "طمطمطم" });
// removal of default ignorables
assertAnalyzesTo(a, "क्ष", new String[] { "कष" });
// removal of latin accents (composed)
assertAnalyzesTo(a, "résumé", new String[] { "resume" });
// removal of latin accents (decomposed)
assertAnalyzesTo(a, "re\u0301sume\u0301", new String[] { "resume" });
// fold native digits
assertAnalyzesTo(a, "৭০৬", new String[] { "706" });
// ascii-folding-filter type stuff
assertAnalyzesTo(a, "đis is cræzy", new String[] { "dis", "is", "craezy" });
// proper downcasing of Turkish dotted-capital I
// (according to default case folding rules)
assertAnalyzesTo(a, "ELİF", new String[] { "elif" });
// handling of decomposed combining-dot-above
assertAnalyzesTo(a, "eli\u0307f", new String[] { "elif" });
}
}