Lucene.Net.Search.TestDisjunctionMaxQuery.TestBooleanOptionalWithTiebreaker C# (CSharp) Method

        public virtual void TestBooleanOptionalWithTiebreaker()
        {
            BooleanQuery q = new BooleanQuery();
            {
                DisjunctionMaxQuery q1 = new DisjunctionMaxQuery(0.01f);
                q1.Add(Tq("hed", "albino"));
                q1.Add(Tq("dek", "albino"));
                q.Add(q1, BooleanClause.Occur.SHOULD); // false,false);
            }
            {
                DisjunctionMaxQuery q2 = new DisjunctionMaxQuery(0.01f);
                q2.Add(Tq("hed", "elephant"));
                q2.Add(Tq("dek", "elephant"));
                q.Add(q2, BooleanClause.Occur.SHOULD); // false,false);
            }
            QueryUtils.Check(Random(), q, s, Similarity);

            ScoreDoc[] h = s.Search(q, null, 1000).ScoreDocs;

            try
            {
                Assert.AreEqual(4, h.Length, "4 docs should match " + q.ToString());

                float score0 = h[0].Score;
                float score1 = h[1].Score;
                float score2 = h[2].Score;
                float score3 = h[3].Score;

                string doc0 = s.Doc(h[0].Doc).Get("id");
                string doc1 = s.Doc(h[1].Doc).Get("id");
                string doc2 = s.Doc(h[2].Doc).Get("id");
                string doc3 = s.Doc(h[3].Doc).Get("id");

                Assert.IsTrue(doc0.Equals("d2") || doc0.Equals("d4"), "doc0 should be d2 or d4: " + doc0);
                Assert.IsTrue(doc1.Equals("d2") || doc1.Equals("d4"), "doc1 should be d2 or d4: " + doc0);
                Assert.AreEqual(score0, score1, SCORE_COMP_THRESH, "score0 and score1 should match");
                Assert.AreEqual("d3", doc2, "wrong third");
                Assert.IsTrue(score1 > score2, "d3 does not have worse score then d2 and d4: " + score1 + " >? " + score2);

                Assert.AreEqual("d1", doc3, "wrong fourth");
                Assert.IsTrue(score2 > score3, "d1 does not have worse score then d3: " + score2 + " >? " + score3);
            }
            catch (Exception e)
            {
                PrintHits("testBooleanOptionalWithTiebreaker", h, s);
                throw e;
            }
        }