/*
* Copyright 2012 The greplin-lucene-utils Authors.
*
* Licensed 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 com.greplin.lucene.query;
import com.greplin.lucene.document.DocumentBuilder;
import com.greplin.lucene.predicate.Predicates;
import org.apache.lucene.analysis.WhitespaceAnalyzer;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.ConstantScoreQuery;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.store.RAMDirectory;
import org.apache.lucene.util.Version;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
/**
* Tests for the PredicateBonusQuery.
*/
public class PredicateBonusQueryTest {
private RAMDirectory directory;
@Before
public void setUp() throws Exception {
this.directory = new RAMDirectory();
}
@Test
public void testBasics() throws Exception {
IndexWriter writer = new IndexWriter(this.directory,
new IndexWriterConfig(
Version.LUCENE_35, new WhitespaceAnalyzer(Version.LUCENE_35)));
writer.addDocument(new DocumentBuilder().add("value", "5").build());
writer.close();
IndexReader reader = IndexReader.open(this.directory);
IndexSearcher searcher = new IndexSearcher(reader);
Query query = new ConstantScoreQuery(new TermQuery(new Term("value", "5")));
Assert.assertEquals(1.0, searcher.search(query, 1).getMaxScore(), 0.00001);
Query noBonus = new PredicateBonusQuery(query, Predicates.NONE, 10.0f);
Assert.assertEquals(1.0, searcher.search(noBonus, 1).getMaxScore(), 0.00001);
Query bonus = new PredicateBonusQuery(query, Predicates.ALL, 100.0f);
Assert.assertEquals(101.0, searcher.search(bonus, 1).getMaxScore(), 0.00001);
Query noMatch = new TermQuery(new Term("value", "not5"));
Assert.assertEquals(Double.NaN, searcher.search(noMatch, 1).getMaxScore(), 0.00001);
Query noMatchNoBonus = new PredicateBonusQuery(noMatch, Predicates.NONE, 10.0f);
Assert.assertEquals(Double.NaN, searcher.search(noMatchNoBonus, 1).getMaxScore(), 0.00001);
Query noMatchIgnoresBonus = new PredicateBonusQuery(noMatch, Predicates.ALL, 100.0f);
Assert.assertEquals(Double.NaN, searcher.search(noMatchIgnoresBonus, 1).getMaxScore(), 0.00001);
}
}