/*
 * 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.search;

import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.StringField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.Term;
import org.apache.lucene.store.ByteBuffersDirectory;
import org.apache.lucene.store.Directory;
import org.apache.lucene.tests.util.LuceneTestCase;
import org.apache.lucene.util.BytesRef;

public class TestFuzzyQueryBinaryPattern extends LuceneTestCase {

  public void testFuzzyQueryMatchesIdenticalBinaryTerm() throws Exception {
    BytesRef bytes = new BytesRef(new byte[] {(byte) 0xff, 'a', 'b', 'c'});
    try (Directory dir = new ByteBuffersDirectory();
        IndexWriter w = new IndexWriter(dir, new IndexWriterConfig())) {
      Document doc = new Document();
      doc.add(new StringField("id", bytes, Field.Store.NO));
      w.addDocument(doc);
      try (DirectoryReader r = DirectoryReader.open(w)) {
        // expected: 1 hit (identical term) or IAE for a non-UTF-8 pattern; actual: 0 hits, automaton built from "[ff 61 62 63]"
        FuzzyQuery q;
        try {
          q = new FuzzyQuery(new Term("id", bytes), 1);
        } catch (IllegalArgumentException e) {
          return;
        }
        assertEquals(1, new IndexSearcher(r).count(q));
      }
    }
  }
}