+++ /dev/null
-package org.apache.lucene.analysis;
-
-/**
- * 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 org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
-import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
-import org.apache.lucene.util.Version;
-
-import java.io.StringReader;
-import java.io.IOException;
-import java.util.Iterator;
-import java.util.Set;
-import java.util.HashSet;
-
-public class TestStopAnalyzer extends BaseTokenStreamTestCase {
-
- private StopAnalyzer stop = new StopAnalyzer(TEST_VERSION_CURRENT);
- private Set<Object> inValidTokens = new HashSet<Object>();
-
- @Override
- public void setUp() throws Exception {
- super.setUp();
-
- Iterator<?> it = StopAnalyzer.ENGLISH_STOP_WORDS_SET.iterator();
- while(it.hasNext()) {
- inValidTokens.add(it.next());
- }
- }
-
- public void testDefaults() throws IOException {
- assertTrue(stop != null);
- StringReader reader = new StringReader("This is a test of the english stop analyzer");
- TokenStream stream = stop.tokenStream("test", reader);
- assertTrue(stream != null);
- CharTermAttribute termAtt = stream.getAttribute(CharTermAttribute.class);
-
- while (stream.incrementToken()) {
- assertFalse(inValidTokens.contains(termAtt.toString()));
- }
- }
-
- public void testStopList() throws IOException {
- Set<Object> stopWordsSet = new HashSet<Object>();
- stopWordsSet.add("good");
- stopWordsSet.add("test");
- stopWordsSet.add("analyzer");
- StopAnalyzer newStop = new StopAnalyzer(Version.LUCENE_24, stopWordsSet);
- StringReader reader = new StringReader("This is a good test of the english stop analyzer");
- TokenStream stream = newStop.tokenStream("test", reader);
- assertNotNull(stream);
- CharTermAttribute termAtt = stream.getAttribute(CharTermAttribute.class);
- PositionIncrementAttribute posIncrAtt = stream.addAttribute(PositionIncrementAttribute.class);
-
- while (stream.incrementToken()) {
- String text = termAtt.toString();
- assertFalse(stopWordsSet.contains(text));
- assertEquals(1,posIncrAtt.getPositionIncrement()); // in 2.4 stop tokenizer does not apply increments.
- }
- }
-
- public void testStopListPositions() throws IOException {
- Set<Object> stopWordsSet = new HashSet<Object>();
- stopWordsSet.add("good");
- stopWordsSet.add("test");
- stopWordsSet.add("analyzer");
- StopAnalyzer newStop = new StopAnalyzer(TEST_VERSION_CURRENT, stopWordsSet);
- StringReader reader = new StringReader("This is a good test of the english stop analyzer with positions");
- int expectedIncr[] = { 1, 1, 1, 3, 1, 1, 1, 2, 1};
- TokenStream stream = newStop.tokenStream("test", reader);
- assertNotNull(stream);
- int i = 0;
- CharTermAttribute termAtt = stream.getAttribute(CharTermAttribute.class);
- PositionIncrementAttribute posIncrAtt = stream.addAttribute(PositionIncrementAttribute.class);
-
- while (stream.incrementToken()) {
- String text = termAtt.toString();
- assertFalse(stopWordsSet.contains(text));
- assertEquals(expectedIncr[i++],posIncrAtt.getPositionIncrement());
- }
- }
-
-}