Lucene.Net.Search.CheckHits.TopdocsString C# (CSharp) Method

        public static string TopdocsString(TopDocs docs, int start, int end)
        {
            StringBuilder sb = new StringBuilder();
            sb.Append("TopDocs totalHits=").Append(docs.TotalHits).Append(" top=").Append(docs.ScoreDocs.Length).Append('\n');
            if (end <= 0)
            {
                end = docs.ScoreDocs.Length;
            }
            else
            {
                end = Math.Min(end, docs.ScoreDocs.Length);
            }
            for (int i = start; i < end; i++)
            {
                sb.Append('\t');
                sb.Append(i);
                sb.Append(") doc=");
                sb.Append(docs.ScoreDocs[i].Doc);
                sb.Append("\tscore=");
                sb.Append(docs.ScoreDocs[i].Score);
                sb.Append('\n');
            }
            return sb.ToString();
        }

        private void AssertSubsetOfSameScores(Query q, TopDocs top1, TopDocs top2)
        {
            // The constrained query
            // should be a subset to the unconstrained query.
            if (top2.TotalHits > top1.TotalHits)
            {
                Assert.Fail("Constrained results not a subset:\n" + CheckHits.TopdocsString(top1, 0, 0) + CheckHits.TopdocsString(top2, 0, 0) + "for query:" + q.ToString());
            }

            for (int hit = 0; hit < top2.TotalHits; hit++)
            {
                int   id    = top2.ScoreDocs[hit].Doc;
                float score = top2.ScoreDocs[hit].Score;
                bool  found = false;
                // find this doc in other hits
                for (int other = 0; other < top1.TotalHits; other++)
                {
                    if (top1.ScoreDocs[other].Doc == id)
                    {
                        found = true;
                        float otherScore = top1.ScoreDocs[other].Score;
                        // check if scores match
                        Assert.AreEqual(score, otherScore, CheckHits.ExplainToleranceDelta(score, otherScore), "Doc " + id + " scores don't match\n" + CheckHits.TopdocsString(top1, 0, 0) + CheckHits.TopdocsString(top2, 0, 0) + "for query:" + q.ToString());
                    }
                }

                // check if subset
                if (!found)
                {
                    Assert.Fail("Doc " + id + " not found\n" + CheckHits.TopdocsString(top1, 0, 0) + CheckHits.TopdocsString(top2, 0, 0) + "for query:" + q.ToString());
                }
            }
        }