Lucene.Net.Search.TestNumericRangeQuery64.CountTerms C# (CSharp) Method

        private int CountTerms(MultiTermQuery q)
        {
            Terms terms = MultiFields.GetTerms(Reader, q.Field);
            if (terms == null)
            {
                return 0;
            }
            TermsEnum termEnum = q.GetTermsEnum(terms);
            Assert.IsNotNull(termEnum);
            int count = 0;
            BytesRef cur, last = null;
            while ((cur = termEnum.Next()) != null)
            {
                count++;
                if (last != null)
                {
                    Assert.IsTrue(last.CompareTo(cur) < 0);
                }
                last = BytesRef.DeepCopyOf(cur);
            }
            // LUCENE-3314: the results after next() already returned null are undefined,
            // Assert.IsNull(termEnum.Next());
            return count;
        }