Lucene.Net.Search.TestConstantScoreQuery.TestQueryWrapperFilter C# (CSharp) Method

        public virtual void TestQueryWrapperFilter()
        {
            Directory d = NewDirectory();
            RandomIndexWriter w = new RandomIndexWriter(Random(), d, Similarity, TimeZone);
            Document doc = new Document();
            doc.Add(NewStringField("field", "a", Field.Store.NO));
            w.AddDocument(doc);
            IndexReader r = w.Reader;
            w.Dispose();

            Filter filter = new QueryWrapperFilter(AssertingQuery.Wrap(Random(), new TermQuery(new Term("field", "a"))));
            IndexSearcher s = NewSearcher(r);
            Debug.Assert(s is AssertingIndexSearcher);
            // this used to fail
            s.Search(new ConstantScoreQuery(filter), new TotalHitCountCollector());

            // check the rewrite
            Query rewritten = (new ConstantScoreQuery(filter)).Rewrite(r);
            Assert.IsTrue(rewritten is ConstantScoreQuery);
            Assert.IsTrue(((ConstantScoreQuery)rewritten).Query is AssertingQuery);

            r.Dispose();
            d.Dispose();
        }
    }