| package org.apache.lucene.queries.function; |
| |
| /* |
| * 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.index.DirectoryReader; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.search.IndexSearcher; |
| import org.apache.lucene.search.QueryUtils; |
| import org.apache.lucene.search.ScoreDoc; |
| import org.apache.lucene.search.TopDocs; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| /** |
| * Test FieldScoreQuery search. |
| * <p> |
| * Tests here create an index with a few documents, each having |
| * an int value indexed field and a float value indexed field. |
| * The values of these fields are later used for scoring. |
| * <p> |
| * The rank tests use Hits to verify that docs are ordered (by score) as expected. |
| * <p> |
| * The exact score tests use TopDocs top to verify the exact score. |
| */ |
| public class TestFieldScoreQuery extends FunctionTestSetup { |
| |
| @BeforeClass |
| public static void beforeClass() throws Exception { |
| createIndex(true); |
| } |
| |
| /** Test that FieldScoreQuery of Type.INT returns docs in expected order. */ |
| @Test |
| public void testRankInt () throws Exception { |
| doTestRank(INT_VALUESOURCE); |
| } |
| |
| /** Test that FieldScoreQuery of Type.FLOAT returns docs in expected order. */ |
| @Test |
| public void testRankFloat () throws Exception { |
| // INT field can be parsed as float |
| doTestRank(INT_AS_FLOAT_VALUESOURCE); |
| // same values, but in flot format |
| doTestRank(FLOAT_VALUESOURCE); |
| } |
| |
| // Test that FieldScoreQuery returns docs in expected order. |
| private void doTestRank (ValueSource valueSource) throws Exception { |
| FunctionQuery functionQuery = new FunctionQuery(valueSource); |
| IndexReader r = DirectoryReader.open(dir); |
| IndexSearcher s = newSearcher(r); |
| log("test: "+ functionQuery); |
| QueryUtils.check(random(), functionQuery,s); |
| ScoreDoc[] h = s.search(functionQuery, null, 1000).scoreDocs; |
| assertEquals("All docs should be matched!",N_DOCS,h.length); |
| String prevID = "ID"+(N_DOCS+1); // greater than all ids of docs in this test |
| for (int i=0; i<h.length; i++) { |
| String resID = s.doc(h[i].doc).get(ID_FIELD); |
| log(i+". score="+h[i].score+" - "+resID); |
| log(s.explain(functionQuery,h[i].doc)); |
| assertTrue("res id "+resID+" should be < prev res id "+prevID, resID.compareTo(prevID)<0); |
| prevID = resID; |
| } |
| r.close(); |
| } |
| |
| /** Test that FieldScoreQuery of Type.INT returns the expected scores. */ |
| @Test |
| public void testExactScoreInt () throws Exception { |
| doTestExactScore(INT_VALUESOURCE); |
| } |
| |
| /** Test that FieldScoreQuery of Type.FLOAT returns the expected scores. */ |
| @Test |
| public void testExactScoreFloat () throws Exception { |
| // INT field can be parsed as float |
| doTestExactScore(INT_AS_FLOAT_VALUESOURCE); |
| // same values, but in flot format |
| doTestExactScore(FLOAT_VALUESOURCE); |
| } |
| |
| // Test that FieldScoreQuery returns docs with expected score. |
| private void doTestExactScore (ValueSource valueSource) throws Exception { |
| FunctionQuery functionQuery = new FunctionQuery(valueSource); |
| IndexReader r = DirectoryReader.open(dir); |
| IndexSearcher s = newSearcher(r); |
| TopDocs td = s.search(functionQuery,null,1000); |
| assertEquals("All docs should be matched!",N_DOCS,td.totalHits); |
| ScoreDoc sd[] = td.scoreDocs; |
| for (ScoreDoc aSd : sd) { |
| float score = aSd.score; |
| log(s.explain(functionQuery, aSd.doc)); |
| String id = s.getIndexReader().document(aSd.doc).get(ID_FIELD); |
| float expectedScore = expectedFieldScore(id); // "ID7" --> 7.0 |
| assertEquals("score of " + id + " shuould be " + expectedScore + " != " + score, expectedScore, score, TEST_SCORE_TOLERANCE_DELTA); |
| } |
| r.close(); |
| } |
| |
| } |