| using System; |
| using Lucene.Net.Documents; |
| using NUnit.Framework; |
| using Assert = Lucene.Net.TestFramework.Assert; |
| using Console = Lucene.Net.Util.SystemConsole; |
| |
| namespace Lucene.Net.Index |
| { |
| /* |
| * 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 Directory = Lucene.Net.Store.Directory; |
| using Document = Documents.Document; |
| using Field = Field; |
| using LuceneTestCase = Lucene.Net.Util.LuceneTestCase; |
| using TestUtil = Lucene.Net.Util.TestUtil; |
| |
| /// <summary> |
| /// Tests <seealso cref="Terms#getSumDocFreq()"/> |
| /// @lucene.experimental |
| /// </summary> |
| [TestFixture] |
| public class TestSumDocFreq : LuceneTestCase |
| { |
| [Test] |
| public virtual void TestSumDocFreq_Mem() |
| { |
| int numDocs = AtLeast(500); |
| |
| Directory dir = NewDirectory(); |
| RandomIndexWriter writer = new RandomIndexWriter( |
| #if FEATURE_INSTANCE_TESTDATA_INITIALIZATION |
| this, |
| #endif |
| Random, dir); |
| |
| Document doc = new Document(); |
| Field id = NewStringField("id", "", Field.Store.NO); |
| Field field1 = NewTextField("foo", "", Field.Store.NO); |
| Field field2 = NewTextField("bar", "", Field.Store.NO); |
| doc.Add(id); |
| doc.Add(field1); |
| doc.Add(field2); |
| for (int i = 0; i < numDocs; i++) |
| { |
| id.SetStringValue("" + i); |
| char ch1 = (char)TestUtil.NextInt32(Random, 'a', 'z'); |
| char ch2 = (char)TestUtil.NextInt32(Random, 'a', 'z'); |
| field1.SetStringValue("" + ch1 + " " + ch2); |
| ch1 = (char)TestUtil.NextInt32(Random, 'a', 'z'); |
| ch2 = (char)TestUtil.NextInt32(Random, 'a', 'z'); |
| field2.SetStringValue("" + ch1 + " " + ch2); |
| writer.AddDocument(doc); |
| } |
| |
| IndexReader ir = writer.GetReader(); |
| |
| AssertSumDocFreq(ir); |
| ir.Dispose(); |
| |
| int numDeletions = AtLeast(20); |
| for (int i = 0; i < numDeletions; i++) |
| { |
| writer.DeleteDocuments(new Term("id", "" + Random.Next(numDocs))); |
| } |
| writer.ForceMerge(1); |
| writer.Dispose(); |
| |
| ir = DirectoryReader.Open(dir); |
| AssertSumDocFreq(ir); |
| ir.Dispose(); |
| dir.Dispose(); |
| } |
| |
| private void AssertSumDocFreq(IndexReader ir) |
| { |
| // compute sumDocFreq across all fields |
| Fields fields = MultiFields.GetFields(ir); |
| |
| foreach (string f in fields) |
| { |
| Terms terms = fields.GetTerms(f); |
| long sumDocFreq = terms.SumDocFreq; |
| if (sumDocFreq == -1) |
| { |
| if (Verbose) |
| { |
| Console.WriteLine("skipping field: " + f + ", codec does not support sumDocFreq"); |
| } |
| continue; |
| } |
| |
| long computedSumDocFreq = 0; |
| TermsEnum termsEnum = terms.GetEnumerator(); |
| while (termsEnum.MoveNext()) |
| { |
| computedSumDocFreq += termsEnum.DocFreq; |
| } |
| Assert.AreEqual(computedSumDocFreq, sumDocFreq); |
| } |
| } |
| } |
| } |