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

		public virtual void  WaitForMerges()
		{
			lock (this)
			{
				// Ensure any running addIndexes finishes.
				AcquireRead();
				ReleaseRead();
				
				while (pendingMerges.Count > 0 || runningMerges.Count > 0)
				{
					DoWait();
				}
				
				// sanity check
				System.Diagnostics.Debug.Assert(0 == mergingSegments.Count);
			}
		}
		

        public virtual void TestMaxNumSegments2([ValueSource(typeof(ConcurrentMergeSchedulerFactories), "Values")] Func <IConcurrentMergeScheduler> newScheduler)
        {
            Directory dir = NewDirectory();

            Document doc = new Document();

            doc.Add(NewStringField("content", "aaa", Field.Store.NO));

            LogDocMergePolicy ldmp = new LogDocMergePolicy();

            ldmp.MinMergeDocs = 1;
            ldmp.MergeFactor  = 4;
            var config = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random))
                         .SetMaxBufferedDocs(2)
                         .SetMergePolicy(ldmp)
                         .SetMergeScheduler(newScheduler());
            IndexWriter writer = new IndexWriter(dir, config);

            for (int iter = 0; iter < 10; iter++)
            {
                for (int i = 0; i < 19; i++)
                {
                    writer.AddDocument(doc);
                }

                writer.Commit();
                writer.WaitForMerges();
                writer.Commit();

                SegmentInfos sis = new SegmentInfos();
                sis.Read(dir);

                int segCount = sis.Count;
                writer.ForceMerge(7);
                writer.Commit();
                writer.WaitForMerges();

                sis = new SegmentInfos();
                sis.Read(dir);
                int optSegCount = sis.Count;

                if (segCount < 7)
                {
                    Assert.AreEqual(segCount, optSegCount);
                }
                else
                {
                    Assert.AreEqual(7, optSegCount, "seg: " + segCount);
                }
            }
            writer.Dispose();
            dir.Dispose();
        }