/*
 * 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.sinks;

import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;
import org.apache.lucene.analysis.CharArraySet;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.core.WhitespaceTokenizer;
import org.apache.lucene.analysis.en.PorterStemFilter;
import org.apache.lucene.analysis.miscellaneous.SetKeywordMarkerFilter;
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
import org.apache.lucene.tests.util.LuceneTestCase;

public class TestTeeSinkSinkOnlyAttribute extends LuceneTestCase {

  public void testKeywordMarkerOnSink() throws Exception {
    Tokenizer tokenizer = new WhitespaceTokenizer();
    tokenizer.setReader(new StringReader("quick foxes"));
    TeeSinkTokenFilter tee = new TeeSinkTokenFilter(tokenizer);
    TokenStream sink =
        new PorterStemFilter(
            new SetKeywordMarkerFilter(
                tee.newSinkTokenStream(), new CharArraySet(List.of("quick"), false)));
    tee.reset();
    tee.consumeAllTokens();
    tee.end();
    tee.close();

    CharTermAttribute term = sink.addAttribute(CharTermAttribute.class);
    List<String> terms = new ArrayList<>();
    sink.reset();
    while (sink.incrementToken()) {
      terms.add(term.toString());
    }
    sink.end();
    sink.close();
    // expected: only "quick" is protected, "foxes" is stemmed; actual: [quick, foxes]
    assertEquals(List.of("quick", "fox"), terms);
  }
}