| /* |
| * |
| * 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. |
| * |
| */ |
| |
| using J2N.Text; |
| using Lucene.Net.Index; |
| using Lucene.Net.Queries.Function; |
| using Lucene.Net.Queries.Function.ValueSources; |
| using Lucene.Net.Search; |
| using NUnit.Framework; |
| using System; |
| |
| namespace Lucene.Net.Tests.Queries.Function |
| { |
| /// <summary> |
| /// Test search based on OrdFieldSource and ReverseOrdFieldSource. |
| /// <p/> |
| /// Tests here create an index with a few documents, each having |
| /// an indexed "id" field. |
| /// The ord values of this field are later used for scoring. |
| /// <p/> |
| /// The order tests use Hits to verify that docs are ordered as expected. |
| /// <p/> |
| /// The exact score tests use TopDocs top to verify the exact score. |
| /// </summary> |
| public class TestOrdValues : FunctionTestSetup |
| { |
| [SetUp] |
| public override void SetUp() |
| { |
| base.SetUp(); |
| CreateIndex(false); |
| } |
| |
| /// <summary> |
| /// Test OrdFieldSource |
| /// </summary> |
| [Test] |
| public void TestOrdFieldRank() |
| { |
| DoTestRank(ID_FIELD, true); |
| } |
| |
| /// <summary> |
| /// Test ReverseOrdFieldSource |
| /// </summary> |
| [Test] |
| public void TestReverseOrdFieldRank() |
| { |
| DoTestRank(ID_FIELD, false); |
| } |
| |
| /// <summary> |
| /// Test that queries based on reverse/ordFieldScore scores correctly |
| /// </summary> |
| /// <param name="field"></param> |
| /// <param name="inOrder"></param> |
| private void DoTestRank(string field, bool inOrder) |
| { |
| IndexReader r = DirectoryReader.Open(dir); |
| IndexSearcher s = NewSearcher(r); |
| ValueSource vs; |
| if (inOrder) |
| { |
| vs = new OrdFieldSource(field); |
| } |
| else |
| { |
| vs = new ReverseOrdFieldSource(field); |
| } |
| |
| Query q = new FunctionQuery(vs); |
| Log("test: " + q); |
| QueryUtils.Check( |
| #if FEATURE_INSTANCE_TESTDATA_INITIALIZATION |
| this, |
| #endif |
| Random, q, s); |
| ScoreDoc[] h = s.Search(q, null, 1000).ScoreDocs; |
| assertEquals("All docs should be matched!", N_DOCS, h.Length); |
| string prevID = inOrder ? "IE" : "IC"; // smaller than all ids of docs in this test ("ID0001", etc.) - greater than all ids of docs in this test ("ID0001", etc.) |
| |
| 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(q, h[i].Doc)); |
| if (inOrder) |
| { |
| assertTrue("res id " + resID + " should be < prev res id " + prevID, resID.CompareToOrdinal(prevID) < 0); |
| } |
| else |
| { |
| assertTrue("res id " + resID + " should be > prev res id " + prevID, resID.CompareToOrdinal(prevID) > 0); |
| } |
| prevID = resID; |
| } |
| r.Dispose(); |
| } |
| |
| /// <summary> |
| /// Test exact score for OrdFieldSource |
| /// </summary> |
| [Test] |
| public void TestOrdFieldExactScore() |
| { |
| DoTestExactScore(ID_FIELD, true); |
| } |
| |
| /// <summary> |
| /// Test exact score for ReverseOrdFieldSource |
| /// </summary> |
| [Test] |
| public void TestReverseOrdFieldExactScore() |
| { |
| DoTestExactScore(ID_FIELD, false); |
| } |
| |
| |
| /// <summary> |
| /// Test that queries based on reverse/ordFieldScore returns docs with expected score. |
| /// </summary> |
| /// <param name="field"></param> |
| /// <param name="inOrder"></param> |
| private void DoTestExactScore(string field, bool inOrder) |
| { |
| IndexReader r = DirectoryReader.Open(dir); |
| IndexSearcher s = NewSearcher(r); |
| ValueSource vs; |
| if (inOrder) |
| { |
| vs = new OrdFieldSource(field); |
| } |
| else |
| { |
| vs = new ReverseOrdFieldSource(field); |
| } |
| Query q = new FunctionQuery(vs); |
| TopDocs td = s.Search(q, null, 1000); |
| assertEquals("All docs should be matched!", N_DOCS, td.TotalHits); |
| ScoreDoc[] sd = td.ScoreDocs; |
| for (int i = 0; i < sd.Length; i++) |
| { |
| float score = sd[i].Score; |
| string id = s.IndexReader.Document(sd[i].Doc).Get(ID_FIELD); |
| Log("-------- " + i + ". Explain doc " + id); |
| Log(s.Explain(q, sd[i].Doc)); |
| float expectedScore = N_DOCS - i - 1; |
| assertEquals("score of result " + i + " shuould be " + expectedScore + " != " + score, expectedScore, score, TEST_SCORE_TOLERANCE_DELTA); |
| string expectedId = inOrder ? Id2String(N_DOCS - i) : Id2String(i + 1); // reverse ==> smaller values first - in-order ==> larger values first |
| assertTrue("id of result " + i + " shuould be " + expectedId + " != " + score, expectedId.Equals(id, StringComparison.Ordinal)); |
| } |
| r.Dispose(); |
| } |
| |
| // LUCENE-1250 |
| [Test] |
| public void TestEqualsNull() |
| { |
| OrdFieldSource ofs = new OrdFieldSource("f"); |
| assertFalse(ofs.Equals(null)); |
| |
| ReverseOrdFieldSource rofs = new ReverseOrdFieldSource("f"); |
| assertFalse(rofs.Equals(null)); |
| } |
| } |
| } |