lucene/core/src/test/org/apache/lucene/search/TestTotalHitCountCollector.java

/*
 * 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.IndexReader;
import org.apache.lucene.index.RandomIndexWriter;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.LuceneTestCase;

public class TestTotalHitCountCollector extends LuceneTestCase {
  
  public void testBasics() throws Exception {
    Directory indexStore = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), indexStore);
    for(int i=0; i<5; i++) {
      Document doc = new Document();
      doc.add(new StringField("string", "a"+i, Field.Store.NO));
      doc.add(new StringField("string", "b"+i, Field.Store.NO));
      writer.addDocument(doc);
    }
    IndexReader reader = writer.getReader();
    writer.close();

    IndexSearcher searcher = newSearcher(reader);
    TotalHitCountCollector c = new TotalHitCountCollector();
    searcher.search(new MatchAllDocsQuery(), c);
    assertEquals(5, c.getTotalHits());
    reader.close();
    indexStore.close();
  }
}