Lucene.Net.Search.TestBooleanMinShouldMatch.TestOneReqAndSomeOptional C# (CSharp) Method

        public virtual void TestOneReqAndSomeOptional()
        {
            /* one required, some optional */
            BooleanQuery q = new BooleanQuery();
            q.Add(new TermQuery(new Term("all", "all")), BooleanClause.Occur.MUST); //true,  false);
            q.Add(new TermQuery(new Term("data", "5")), BooleanClause.Occur.SHOULD); //false, false);
            q.Add(new TermQuery(new Term("data", "4")), BooleanClause.Occur.SHOULD); //false, false);
            q.Add(new TermQuery(new Term("data", "3")), BooleanClause.Occur.SHOULD); //false, false);

            q.MinimumNumberShouldMatch = 2; // 2 of 3 optional

            VerifyNrHits(q, 5);
        }