Lucene.Net.Index.TestStressIndexing2.VerifyEquals C# (CSharp) Method

		public static void  VerifyEquals(IndexReader r1, IndexReader r2, System.String idField)
		{
			Assert.AreEqual(r1.NumDocs(), r2.NumDocs());
			bool hasDeletes = !(r1.MaxDoc == r2.MaxDoc && r1.NumDocs() == r1.MaxDoc);
			
			int[] r2r1 = new int[r2.MaxDoc]; // r2 id to r1 id mapping
			
			TermDocs termDocs1 = r1.TermDocs();
			TermDocs termDocs2 = r2.TermDocs();
			
			// create mapping from id2 space to id2 based on idField
			idField = StringHelper.Intern(idField);
			TermEnum termEnum = r1.Terms(new Term(idField, ""));
			do 
			{
				Term term = termEnum.Term;
				if (term == null || (System.Object) term.Field != (System.Object) idField)
					break;
				
				termDocs1.Seek(termEnum);
				if (!termDocs1.Next())
				{
					// This doc is deleted and wasn't replaced
					termDocs2.Seek(termEnum);
					Assert.IsFalse(termDocs2.Next());
					continue;
				}
				
				int id1 = termDocs1.Doc;
				Assert.IsFalse(termDocs1.Next());
				
				termDocs2.Seek(termEnum);
				Assert.IsTrue(termDocs2.Next());
				int id2 = termDocs2.Doc;
				Assert.IsFalse(termDocs2.Next());
				
				r2r1[id2] = id1;
				
				// verify stored fields are equivalent
				try
				{
					VerifyEquals(r1.Document(id1), r2.Document(id2));
				}
				catch (System.Exception t)
				{
					System.Console.Out.WriteLine("FAILED id=" + term + " id1=" + id1 + " id2=" + id2 + " term=" + term);
					System.Console.Out.WriteLine("  d1=" + r1.Document(id1));
					System.Console.Out.WriteLine("  d2=" + r2.Document(id2));
					throw t;
				}
				
				try
				{
					// verify term vectors are equivalent        
					VerifyEquals(r1.GetTermFreqVectors(id1), r2.GetTermFreqVectors(id2));
				}
				catch (System.Exception e)
				{
					System.Console.Out.WriteLine("FAILED id=" + term + " id1=" + id1 + " id2=" + id2);
					ITermFreqVector[] tv1 = r1.GetTermFreqVectors(id1);
					System.Console.Out.WriteLine("  d1=" + tv1);
					if (tv1 != null)
						for (int i = 0; i < tv1.Length; i++)
						{
							System.Console.Out.WriteLine("    " + i + ": " + tv1[i]);
						}
					
					ITermFreqVector[] tv2 = r2.GetTermFreqVectors(id2);
					System.Console.Out.WriteLine("  d2=" + tv2);
					if (tv2 != null)
						for (int i = 0; i < tv2.Length; i++)
						{
							System.Console.Out.WriteLine("    " + i + ": " + tv2[i]);
						}
					
					throw e;
				}
			}
			while (termEnum.Next());
			
			termEnum.Close();
			
			// Verify postings
			TermEnum termEnum1 = r1.Terms(new Term("", ""));
			TermEnum termEnum2 = r2.Terms(new Term("", ""));
			
			// pack both doc and freq into single element for easy sorting
			long[] info1 = new long[r1.NumDocs()];
			long[] info2 = new long[r2.NumDocs()];
			
			for (; ; )
			{
				Term term1, term2;
				
				// iterate until we get some docs
				int len1;
				for (; ; )
				{
					len1 = 0;
					term1 = termEnum1.Term;
					if (term1 == null)
						break;
					termDocs1.Seek(termEnum1);
					while (termDocs1.Next())
					{
						int d1 = termDocs1.Doc;
						int f1 = termDocs1.Freq;
						info1[len1] = (((long) d1) << 32) | f1;
						len1++;
					}
					if (len1 > 0)
						break;
					if (!termEnum1.Next())
						break;
				}
				
				// iterate until we get some docs
				int len2;
				for (; ; )
				{
					len2 = 0;
					term2 = termEnum2.Term;
					if (term2 == null)
						break;
					termDocs2.Seek(termEnum2);
					while (termDocs2.Next())
					{
						int d2 = termDocs2.Doc;
						int f2 = termDocs2.Freq;
						info2[len2] = (((long) r2r1[d2]) << 32) | f2;
						len2++;
					}
					if (len2 > 0)
						break;
					if (!termEnum2.Next())
						break;
				}
				
				if (!hasDeletes)
					Assert.AreEqual(termEnum1.DocFreq(), termEnum2.DocFreq());
				
				Assert.AreEqual(len1, len2);
				if (len1 == 0)
					break; // no more terms
				
				Assert.AreEqual(term1, term2);
				
				// sort info2 to get it into ascending docid
				System.Array.Sort(info2, 0, len2 - 0);
				
				// now compare
				for (int i = 0; i < len1; i++)
				{
					Assert.AreEqual(info1[i], info2[i]);
				}
				
				termEnum1.Next();
				termEnum2.Next();
			}
		}