MongoDB.Driver.TestDocument.TestCopyToCopiesAndPreservesKeyOrderToEmptyDoc C# (CSharp) Метод

        public void TestCopyToCopiesAndPreservesKeyOrderToEmptyDoc()
        {
            Document d = new Document();
            Document dest = new Document();
            d["one"] = 1;
            d.Add("two", 2);
            d["three"] = 3;
            d.CopyTo(dest);
            int cnt = 1;
            foreach(String key in dest.Keys){
                Assert.AreEqual(cnt, d[key]);
                cnt++;
            }
        }