Lucene.Net.Index.IndexWriter.GetDocCount C# (CSharp) Method

		public /*internal*/ int GetDocCount(int i)
		{
			lock (this)
			{
				if (i >= 0 && i < segmentInfos.Count)
				{
					return segmentInfos.Info(i).docCount;
				}
				else
				{
					return - 1;
				}
			}
		}
		

        public virtual void  TestMergeAfterCopy()
        {
            // main directory
            Directory dir = new RAMDirectory();
            // auxiliary directory
            Directory aux = new RAMDirectory();

            SetUpDirs(dir, aux);

            IndexReader reader = IndexReader.Open(aux);

            for (int i = 0; i < 20; i++)
            {
                reader.DeleteDocument(i);
            }
            Assert.AreEqual(10, reader.NumDocs());
            reader.Close();

            IndexWriter writer = NewWriter(dir, false);

            writer.SetMaxBufferedDocs(4);
            writer.SetMergeFactor(4);

            writer.AddIndexesNoOptimize(new Directory[] { aux, new RAMDirectory(aux) });
            Assert.AreEqual(1020, writer.DocCount());
            Assert.AreEqual(1000, writer.GetDocCount(0));
            writer.Close();

            // make sure the index is correct
            VerifyNumDocs(dir, 1020);
        }