private void  CheckInvariants(IndexWriter writer)
        {
            _TestUtil.SyncConcurrentMerges(writer);
            int maxBufferedDocs = writer.GetMaxBufferedDocs();
            int mergeFactor     = writer.GetMergeFactor();
            int maxMergeDocs    = writer.GetMaxMergeDocs();

            int ramSegmentCount = writer.GetNumBufferedDocuments();

            Assert.IsTrue(ramSegmentCount < maxBufferedDocs);

            int lowerBound  = -1;
            int upperBound  = maxBufferedDocs;
            int numSegments = 0;

            int segmentCount = writer.GetSegmentCount();

            for (int i = segmentCount - 1; i >= 0; i--)
            {
                int docCount = writer.GetDocCount(i);
                Assert.IsTrue(docCount > lowerBound);

                if (docCount <= upperBound)
                {
                    numSegments++;
                }
                else
                {
                    if (upperBound * mergeFactor <= maxMergeDocs)
                    {
                        Assert.IsTrue(numSegments < mergeFactor);
                    }

                    do
                    {
                        lowerBound  = upperBound;
                        upperBound *= mergeFactor;
                    }while (docCount > upperBound);
                    numSegments = 1;
                }
            }
            if (upperBound * mergeFactor <= maxMergeDocs)
            {
                Assert.IsTrue(numSegments < mergeFactor);
            }

            System.String[] files           = writer.GetDirectory().ListAll();
            int             segmentCfsCount = 0;

            for (int i = 0; i < files.Length; i++)
            {
                if (files[i].EndsWith(".cfs"))
                {
                    segmentCfsCount++;
                }
            }
            Assert.AreEqual(segmentCount, segmentCfsCount);
        }
        private void  CheckInvariants(IndexWriter writer)
        {
            writer.WaitForMerges();
            int maxBufferedDocs = writer.GetMaxBufferedDocs();
            int mergeFactor     = writer.GetMergeFactor();
            int maxMergeDocs    = writer.GetMaxMergeDocs();

            int ramSegmentCount = writer.GetNumBufferedDocuments();

            Assert.IsTrue(ramSegmentCount < maxBufferedDocs);

            int lowerBound  = -1;
            int upperBound  = maxBufferedDocs;
            int numSegments = 0;

            int segmentCount = writer.GetSegmentCount();

            for (int i = segmentCount - 1; i >= 0; i--)
            {
                int docCount = writer.GetDocCount(i);
                Assert.IsTrue(docCount > lowerBound);

                if (docCount <= upperBound)
                {
                    numSegments++;
                }
                else
                {
                    if (upperBound * mergeFactor <= maxMergeDocs)
                    {
                        Assert.IsTrue(numSegments < mergeFactor);
                    }

                    do
                    {
                        lowerBound  = upperBound;
                        upperBound *= mergeFactor;
                    }while (docCount > upperBound);
                    numSegments = 1;
                }
            }
            if (upperBound * mergeFactor <= maxMergeDocs)
            {
                Assert.IsTrue(numSegments < mergeFactor);
            }
        }
		private void  CheckInvariants(IndexWriter writer)
		{
			_TestUtil.SyncConcurrentMerges(writer);
			int maxBufferedDocs = writer.GetMaxBufferedDocs();
			int mergeFactor = writer.GetMergeFactor();
			int maxMergeDocs = writer.GetMaxMergeDocs();
			
			int ramSegmentCount = writer.GetNumBufferedDocuments();
			Assert.IsTrue(ramSegmentCount < maxBufferedDocs);
			
			int lowerBound = - 1;
			int upperBound = maxBufferedDocs;
			int numSegments = 0;
			
			int segmentCount = writer.GetSegmentCount();
			for (int i = segmentCount - 1; i >= 0; i--)
			{
				int docCount = writer.GetDocCount(i);
				Assert.IsTrue(docCount > lowerBound);
				
				if (docCount <= upperBound)
				{
					numSegments++;
				}
				else
				{
					if (upperBound * mergeFactor <= maxMergeDocs)
					{
						Assert.IsTrue(numSegments < mergeFactor);
					}
					
					do 
					{
						lowerBound = upperBound;
						upperBound *= mergeFactor;
					}
					while (docCount > upperBound);
					numSegments = 1;
				}
			}
			if (upperBound * mergeFactor <= maxMergeDocs)
			{
				Assert.IsTrue(numSegments < mergeFactor);
			}
			
			System.String[] files = writer.GetDirectory().ListAll();
			int segmentCfsCount = 0;
			for (int i = 0; i < files.Length; i++)
			{
				if (files[i].EndsWith(".cfs"))
				{
					segmentCfsCount++;
				}
			}
			Assert.AreEqual(segmentCount, segmentCfsCount);
		}
		private void  CheckInvariants(IndexWriter writer)
		{
            writer.WaitForMerges();
			int maxBufferedDocs = writer.GetMaxBufferedDocs();
			int mergeFactor = writer.GetMergeFactor();
			int maxMergeDocs = writer.GetMaxMergeDocs();
			
			int ramSegmentCount = writer.GetNumBufferedDocuments();
			Assert.IsTrue(ramSegmentCount < maxBufferedDocs);
			
			int lowerBound = - 1;
			int upperBound = maxBufferedDocs;
			int numSegments = 0;
			
			int segmentCount = writer.GetSegmentCount();
			for (int i = segmentCount - 1; i >= 0; i--)
			{
				int docCount = writer.GetDocCount(i);
				Assert.IsTrue(docCount > lowerBound);
				
				if (docCount <= upperBound)
				{
					numSegments++;
				}
				else
				{
					if (upperBound * mergeFactor <= maxMergeDocs)
					{
						Assert.IsTrue(numSegments < mergeFactor);
					}
					
					do 
					{
						lowerBound = upperBound;
						upperBound *= mergeFactor;
					}
					while (docCount > upperBound);
					numSegments = 1;
				}
			}
			if (upperBound * mergeFactor <= maxMergeDocs)
			{
				Assert.IsTrue(numSegments < mergeFactor);
			}
		}