package org.apache.lucene.analysis.miscellaneous;
/*
* 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.*;
import org.apache.lucene.analysis.core.KeywordTokenizer;
import org.apache.lucene.util.Version;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
public class TestLengthFilter extends BaseTokenStreamTestCase {
public void testFilterNoPosIncr() throws Exception {
TokenStream stream = new MockTokenizer(
new StringReader("short toolong evenmuchlongertext a ab toolong foo"), MockTokenizer.WHITESPACE, false);
LengthFilter filter = new LengthFilter(Version.LUCENE_43, false, stream, 2, 6);
assertTokenStreamContents(filter,
new String[]{"short", "ab", "foo"},
new int[]{1, 1, 1}
);
}
public void testFilterWithPosIncr() throws Exception {
TokenStream stream = new MockTokenizer(
new StringReader("short toolong evenmuchlongertext a ab toolong foo"), MockTokenizer.WHITESPACE, false);
LengthFilter filter = new LengthFilter(TEST_VERSION_CURRENT, stream, 2, 6);
assertTokenStreamContents(filter,
new String[]{"short", "ab", "foo"},
new int[]{1, 4, 2}
);
}
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 LengthFilter(TEST_VERSION_CURRENT, tokenizer, 0, 5));
}
};
checkOneTerm(a, "", "");
}
}