MongoDB.Driver.Document.Clear C# (CSharp) Method

        public void Clear()
        {
            Dictionary.Clear();
            orderedKeys.Clear();
        }

 public void TestClearRemovesAll()
 {
     Document d = new Document();
     d["one"] = 1;
     d.Add("two", 2);
     d["three"] = 3;
     Assert.AreEqual(3,d.Count);
     d.Clear();
     Assert.AreEqual(0, d.Count);
     Assert.IsNull(d["one"]);
     Assert.IsFalse(d.Contains("one"));
 }