Lucene.Net.Index.TestAddIndexesNoOptimize.TestMergeAfterCopy C# (CSharp) Method

		public virtual void  TestMergeAfterCopy()
		{
			// main directory
			Directory dir = new RAMDirectory();
			// auxiliary directory
			Directory aux = new RAMDirectory();
			
			SetUpDirs(dir, aux);
			
			IndexReader reader = IndexReader.Open(aux, false);
			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.MergeFactor = 4;
			
			writer.AddIndexesNoOptimize(new Directory[]{aux, new RAMDirectory(aux)});
            Assert.AreEqual(1020, writer.MaxDoc());
			Assert.AreEqual(1000, writer.GetDocCount(0));
			writer.Close();
			
			// make sure the index is correct
			VerifyNumDocs(dir, 1020);
		}