/*
* 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.miscellaneous;
import org.apache.lucene.analysis.CannedTokenStream;
import org.apache.lucene.analysis.Token;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.util.BaseTokenStreamFactoryTestCase;
/** Simple tests to ensure this factory is working */
public class TestRemoveDuplicatesTokenFilterFactory extends BaseTokenStreamFactoryTestCase {
public static Token tok(int pos, String t, int start, int end) {
Token tok = new Token(t,start,end);
tok.setPositionIncrement(pos);
return tok;
}
public void testDups(final String expected, final Token... tokens) throws Exception {
TokenStream stream = new CannedTokenStream(tokens);
stream = tokenFilterFactory("RemoveDuplicates").create(stream);
assertTokenStreamContents(stream, expected.split("\\s"));
}
public void testSimpleDups() throws Exception {
testDups("A B C D E"
,tok(1,"A", 0, 4)
,tok(1,"B", 5, 10)
,tok(0,"B",11, 15)
,tok(1,"C",16, 20)
,tok(0,"D",16, 20)
,tok(1,"E",21, 25)
);
}
/** Test that bogus arguments result in exception */
public void testBogusArguments() throws Exception {
IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
tokenFilterFactory("RemoveDuplicates", "bogusArg", "bogusValue");
});
assertTrue(expected.getMessage().contains("Unknown parameters"));
}
}