+++ /dev/null
-package org.apache.lucene.search;
-
-/**
- * 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.
- */
-
-import org.apache.lucene.util.LuceneTestCase;
-import org.apache.lucene.store.Directory;
-import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.index.RandomIndexWriter;
-import org.apache.lucene.index.Term;
-
-import org.apache.lucene.document.Document;
-import org.apache.lucene.document.Field;
-
-/**
- * Tests {@link PrefixFilter} class.
- *
- */
-public class TestPrefixFilter extends LuceneTestCase {
- public void testPrefixFilter() throws Exception {
- Directory directory = newDirectory();
-
- String[] categories = new String[] {"/Computers/Linux",
- "/Computers/Mac/One",
- "/Computers/Mac/Two",
- "/Computers/Windows"};
- RandomIndexWriter writer = new RandomIndexWriter(random, directory);
- for (int i = 0; i < categories.length; i++) {
- Document doc = new Document();
- doc.add(newField("category", categories[i], Field.Store.YES, Field.Index.NOT_ANALYZED));
- writer.addDocument(doc);
- }
- IndexReader reader = writer.getReader();
-
- // PrefixFilter combined with ConstantScoreQuery
- PrefixFilter filter = new PrefixFilter(new Term("category", "/Computers"));
- Query query = new ConstantScoreQuery(filter);
- IndexSearcher searcher = newSearcher(reader);
- ScoreDoc[] hits = searcher.search(query, null, 1000).scoreDocs;
- assertEquals(4, hits.length);
-
- // test middle of values
- filter = new PrefixFilter(new Term("category", "/Computers/Mac"));
- query = new ConstantScoreQuery(filter);
- hits = searcher.search(query, null, 1000).scoreDocs;
- assertEquals(2, hits.length);
-
- // test start of values
- filter = new PrefixFilter(new Term("category", "/Computers/Linux"));
- query = new ConstantScoreQuery(filter);
- hits = searcher.search(query, null, 1000).scoreDocs;
- assertEquals(1, hits.length);
-
- // test end of values
- filter = new PrefixFilter(new Term("category", "/Computers/Windows"));
- query = new ConstantScoreQuery(filter);
- hits = searcher.search(query, null, 1000).scoreDocs;
- assertEquals(1, hits.length);
-
- // test non-existant
- filter = new PrefixFilter(new Term("category", "/Computers/ObsoleteOS"));
- query = new ConstantScoreQuery(filter);
- hits = searcher.search(query, null, 1000).scoreDocs;
- assertEquals(0, hits.length);
-
- // test non-existant, before values
- filter = new PrefixFilter(new Term("category", "/Computers/AAA"));
- query = new ConstantScoreQuery(filter);
- hits = searcher.search(query, null, 1000).scoreDocs;
- assertEquals(0, hits.length);
-
- // test non-existant, after values
- filter = new PrefixFilter(new Term("category", "/Computers/ZZZ"));
- query = new ConstantScoreQuery(filter);
- hits = searcher.search(query, null, 1000).scoreDocs;
- assertEquals(0, hits.length);
-
- // test zero length prefix
- filter = new PrefixFilter(new Term("category", ""));
- query = new ConstantScoreQuery(filter);
- hits = searcher.search(query, null, 1000).scoreDocs;
- assertEquals(4, hits.length);
-
- // test non existent field
- filter = new PrefixFilter(new Term("nonexistantfield", "/Computers"));
- query = new ConstantScoreQuery(filter);
- hits = searcher.search(query, null, 1000).scoreDocs;
- assertEquals(0, hits.length);
-
- writer.close();
- searcher.close();
- reader.close();
- directory.close();
- }
-}