Lucene.Net.Search.TestFilteredQuery.TestQueryFirstFilterStrategy C# (CSharp) Method

        public virtual void TestQueryFirstFilterStrategy()
        {
            Directory directory = NewDirectory();
            RandomIndexWriter writer = new RandomIndexWriter(Random(), directory, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())));
            int numDocs = AtLeast(50);
            int totalDocsWithZero = 0;
            for (int i = 0; i < numDocs; i++)
            {
                Document doc = new Document();
                int num = Random().Next(5);
                if (num == 0)
                {
                    totalDocsWithZero++;
                }
                doc.Add(NewTextField("field", "" + num, Field.Store.YES));
                writer.AddDocument(doc);
            }
            IndexReader reader = writer.Reader;
            writer.Dispose();

            IndexSearcher searcher = NewSearcher(reader);
            Query query = new FilteredQuery(new TermQuery(new Term("field", "0")), new FilterAnonymousInnerClassHelper3(this, reader), FilteredQuery.QUERY_FIRST_FILTER_STRATEGY);

            TopDocs search = searcher.Search(query, 10);
            Assert.AreEqual(totalDocsWithZero, search.TotalHits);
            IOUtils.Close(reader, writer, directory);
        }