| /* |
| * 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. |
| */ |
| package org.apache.lucene.analysis.de; |
| |
| import java.io.IOException; |
| import java.io.StringReader; |
| import org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.analysis.BaseTokenStreamTestCase; |
| import org.apache.lucene.analysis.CharArraySet; |
| import org.apache.lucene.analysis.LowerCaseFilter; |
| import org.apache.lucene.analysis.Tokenizer; |
| import org.apache.lucene.analysis.core.LetterTokenizer; |
| import org.apache.lucene.analysis.miscellaneous.SetKeywordMarkerFilter; |
| |
| public class TestGermanAnalyzer extends BaseTokenStreamTestCase { |
| public void testReusableTokenStream() throws Exception { |
| Analyzer a = new GermanAnalyzer(); |
| checkOneTerm(a, "Tisch", "tisch"); |
| checkOneTerm(a, "Tische", "tisch"); |
| checkOneTerm(a, "Tischen", "tisch"); |
| a.close(); |
| } |
| |
| public void testWithKeywordAttribute() throws IOException { |
| CharArraySet set = new CharArraySet(1, true); |
| set.add("fischen"); |
| final Tokenizer in = new LetterTokenizer(); |
| in.setReader(new StringReader("Fischen Trinken")); |
| GermanStemFilter filter = |
| new GermanStemFilter(new SetKeywordMarkerFilter(new LowerCaseFilter(in), set)); |
| assertTokenStreamContents(filter, new String[] {"fischen", "trink"}); |
| } |
| |
| public void testStemExclusionTable() throws Exception { |
| GermanAnalyzer a = |
| new GermanAnalyzer(CharArraySet.EMPTY_SET, new CharArraySet(asSet("tischen"), false)); |
| checkOneTerm(a, "tischen", "tischen"); |
| a.close(); |
| } |
| |
| /** |
| * test some features of the new snowball filter these only pass with LATEST, not if you use |
| * o.a.l.a.de.GermanStemmer |
| */ |
| public void testGermanSpecials() throws Exception { |
| GermanAnalyzer a = new GermanAnalyzer(); |
| // a/o/u + e is equivalent to the umlaut form |
| checkOneTerm(a, "Schaltflächen", "schaltflach"); |
| checkOneTerm(a, "Schaltflaechen", "schaltflach"); |
| a.close(); |
| } |
| |
| /** blast some random strings through the analyzer */ |
| public void testRandomStrings() throws Exception { |
| GermanAnalyzer a = new GermanAnalyzer(); |
| checkRandomData(random(), a, 200 * RANDOM_MULTIPLIER); |
| a.close(); |
| } |
| } |