package org.apache.lucene.analysis.bg;
/**
* 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.util.Collections;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.CharArraySet;
import org.apache.lucene.util.Version;
/**
* Test the Bulgarian analyzer
*/
public class TestBulgarianAnalyzer extends BaseTokenStreamTestCase {
/**
* This test fails with NPE when the stopwords file is missing in classpath
*/
public void testResourcesAvailable() {
new BulgarianAnalyzer(TEST_VERSION_CURRENT);
}
public void testStopwords() throws IOException {
Analyzer a = new BulgarianAnalyzer(TEST_VERSION_CURRENT);
assertAnalyzesTo(a, "Как се казваш?", new String[] {"казваш"});
}
public void testCustomStopwords() throws IOException {
Analyzer a = new BulgarianAnalyzer(TEST_VERSION_CURRENT, Collections
.emptySet());
assertAnalyzesTo(a, "Как се казваш?",
new String[] {"как", "се", "казваш"});
}
public void testReusableTokenStream() throws IOException {
Analyzer a = new BulgarianAnalyzer(TEST_VERSION_CURRENT);
assertAnalyzesToReuse(a, "документи", new String[] {"документ"});
assertAnalyzesToReuse(a, "документ", new String[] {"документ"});
}
/**
* Test some examples from the paper
*/
public void testBasicExamples() throws IOException {
Analyzer a = new BulgarianAnalyzer(TEST_VERSION_CURRENT);
assertAnalyzesTo(a, "енергийни кризи", new String[] {"енергийн", "криз"});
assertAnalyzesTo(a, "Атомната енергия", new String[] {"атомн", "енерг"});
assertAnalyzesTo(a, "компютри", new String[] {"компютр"});
assertAnalyzesTo(a, "компютър", new String[] {"компютр"});
assertAnalyzesTo(a, "градове", new String[] {"град"});
}
public void testWithStemExclusionSet() throws IOException {
CharArraySet set = new CharArraySet(Version.LUCENE_31, 1, true);
set.add("строеве");
Analyzer a = new BulgarianAnalyzer(TEST_VERSION_CURRENT, CharArraySet.EMPTY_SET, set);
assertAnalyzesTo(a, "строевете строеве", new String[] { "строй", "строеве" });
}
}