Lucene.Net.Analysis.ChainedFilterTest.TestSingleFilter C# (CSharp) Method

        public void TestSingleFilter()
        {
            ChainedFilter chain = GetChainedFilter(new Filter[] { dateFilter }, null);

            int numHits = searcher.Search(query, chain, 1000).TotalHits;
            Assert.AreEqual(MAX, numHits);

            chain = new ChainedFilter(new Filter[] { bobFilter });
            numHits = searcher.Search(query, chain, 1000).TotalHits;
            Assert.AreEqual(MAX / 2, numHits);

            chain = GetChainedFilter(new Filter[] { bobFilter }, new ChainedFilter.Logic[] { ChainedFilter.Logic.AND });
            TopDocs hits = searcher.Search(query, chain, 1000);
            numHits = hits.TotalHits;
            Assert.AreEqual(MAX / 2, numHits);
            Assert.AreEqual("bob", searcher.Doc(hits.ScoreDocs[0].doc).Get("owner"));

            chain = GetChainedFilter(new Filter[] { bobFilter }, new ChainedFilter.Logic[] { ChainedFilter.Logic.ANDNOT });
            hits = searcher.Search(query, chain, 1000);
            numHits = hits.TotalHits;
            Assert.AreEqual(MAX / 2, numHits);
            Assert.AreEqual("sue", searcher.Doc(hits.ScoreDocs[0].doc).Get("owner"));
        }