Lucene.Net.Index.TestSizeBoundedForceMerge.TestMergeFactor C# (CSharp) Method

        public virtual void TestMergeFactor()
        {
            Directory dir = new RAMDirectory();

            IndexWriterConfig conf = NewWriterConfig();
            IndexWriter writer = new IndexWriter(dir, conf);

            AddDocs(writer, 3);
            AddDocs(writer, 3);
            AddDocs(writer, 3);
            AddDocs(writer, 3);
            AddDocs(writer, 5);
            AddDocs(writer, 3);
            AddDocs(writer, 3);

            writer.Dispose();

            conf = NewWriterConfig();
            LogMergePolicy lmp = new LogDocMergePolicy();
            lmp.MaxMergeDocs = 3;
            lmp.MergeFactor = 2;
            conf.SetMergePolicy(lmp);

            writer = new IndexWriter(dir, conf);
            writer.ForceMerge(1);
            writer.Dispose();

            // Should only be 4 segments in the index, because of the merge factor and
            // max merge docs settings.
            SegmentInfos sis = new SegmentInfos();
            sis.Read(dir);
            Assert.AreEqual(4, sis.Size());
        }