MongoDB.Driver.TestCursor.TestHint C# (CSharp) Метод

        public void TestHint()
        {
            IMongoCollection reads = db["tests"]["reads"];
            Document hint = new Document().Append("x",IndexOrder.Ascending);

            Document exp = reads.FindAll().Hint(hint).Explain();
            Assert.IsTrue(exp.Contains("$err"), "No error found");

            reads.MetaData.CreateIndex("hintindex",hint,false);
            exp = reads.FindAll().Hint(hint).Explain();

            Assert.IsTrue(exp.Contains("cursor"));
            Assert.IsTrue(exp.Contains("n"));
            Assert.IsTrue(exp.Contains("nscanned"));
        }