public virtual void TestSomeProhibAndSomeOptional()
{
/* two prohibited, some optional */
BooleanQuery q = new BooleanQuery();
q.Add(new TermQuery(new Term("data", "1")), BooleanClause.Occur.SHOULD); //false, false);
q.Add(new TermQuery(new Term("data", "2")), BooleanClause.Occur.SHOULD); //false, false);
q.Add(new TermQuery(new Term("data", "3")), BooleanClause.Occur.MUST_NOT); //false, true );
q.Add(new TermQuery(new Term("data", "4")), BooleanClause.Occur.SHOULD); //false, false);
q.Add(new TermQuery(new Term("data", "C")), BooleanClause.Occur.MUST_NOT); //false, true );
q.MinimumNumberShouldMatch = 2; // 2 of 3 optional
VerifyNrHits(q, 1);
}