/*
 * 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.pattern;

import java.io.StringReader;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.tests.analysis.BaseTokenStreamTestCase;

public class TestSimplePatternLookaheadAtEnd extends BaseTokenStreamTestCase {

  public void testLookaheadReachesEnd() throws Exception {
    Tokenizer t = new SimplePatternTokenizer("abc|b");
    t.setReader(new StringReader("ab"));
    // expected [b] (as for "abx"); actual [] because the lookahead "ab" hits the end and ends the scan
    assertTokenStreamContents(t, new String[] {"b"});
  }
}