public void TestTermsFilter()
{
var termsFilter = new TermsFilter("age", 22, 23, 24,25);
var constantQ = new ConstantScoreQuery(termsFilter);
var result= client.Search(index, "type" , constantQ, 0, 5);
Assert.AreEqual(4,result.GetTotalCount());
termsFilter = new TermsFilter("age", 22);
constantQ = new ConstantScoreQuery(termsFilter);
result = client.Search(index, "type" , constantQ, 0, 5);
Assert.AreEqual(1, result.GetTotalCount());
}