public void TestMissingFiledFilter()
{
var constantScoreQuery = new ConstantScoreQuery(new MissingFilter("age"));
var result = client.Search(index, "type" , constantScoreQuery, 0, 5);
Assert.AreEqual(100, result.GetTotalCount());
Assert.AreEqual(5, result.GetHits().Hits.Count);
constantScoreQuery = new ConstantScoreQuery(new MissingFilter("ids"));
result = client.Search(index, "type" , constantScoreQuery, 0, 5);
Assert.AreEqual(4, result.GetTotalCount());
Assert.AreEqual(4, result.GetHits().Hits.Count);
}