public void WriteValues()
        {
            MemoryStream ms = new MemoryStream();
            BsonWriter writer = new BsonWriter(ms);

            writer.WriteStartArray();
            writer.WriteValue(long.MaxValue);
            writer.WriteValue((ulong)long.MaxValue);
            writer.WriteValue(int.MaxValue);
            writer.WriteValue((uint)int.MaxValue);
            writer.WriteValue(byte.MaxValue);
            writer.WriteValue(sbyte.MaxValue);
            writer.WriteValue('a');
            writer.WriteValue(decimal.MaxValue);
            writer.WriteValue(double.MaxValue);
            writer.WriteValue(float.MaxValue);
            writer.WriteValue(true);
            writer.WriteValue(new byte[] { 0, 1, 2, 3, 4 });
            writer.WriteValue(new DateTimeOffset(2000, 12, 29, 12, 30, 0, TimeSpan.Zero));
            writer.WriteValue(new DateTime(2000, 12, 29, 12, 30, 0, DateTimeKind.Utc));
            writer.WriteEnd();

            string bson = BytesToHex(ms.ToArray());
            Assert.Equal("8C-00-00-00-12-30-00-FF-FF-FF-FF-FF-FF-FF-7F-12-31-00-FF-FF-FF-FF-FF-FF-FF-7F-10-32-00-FF-FF-FF-7F-10-33-00-FF-FF-FF-7F-10-34-00-FF-00-00-00-10-35-00-7F-00-00-00-02-36-00-02-00-00-00-61-00-01-37-00-00-00-00-00-00-00-F0-45-01-38-00-FF-FF-FF-FF-FF-FF-EF-7F-01-39-00-00-00-00-E0-FF-FF-EF-47-08-31-30-00-01-05-31-31-00-05-00-00-00-00-00-01-02-03-04-09-31-32-00-40-C5-E2-BA-E3-00-00-00-09-31-33-00-40-C5-E2-BA-E3-00-00-00-00", bson);
        }
        public void WriteDouble()
        {
            MemoryStream ms = new MemoryStream();
            BsonWriter writer = new BsonWriter(ms);

            writer.WriteStartArray();
            writer.WriteValue(99.99d);
            writer.WriteEnd();

            string bson = BytesToHex(ms.ToArray());
            Assert.Equal("10-00-00-00-01-30-00-8F-C2-F5-28-5C-FF-58-40-00", bson);
        }
        public void WriteGuid()
        {
            Guid g = new Guid("D821EED7-4B5C-43C9-8AC2-6928E579B705");

            MemoryStream ms = new MemoryStream();
            BsonWriter writer = new BsonWriter(ms);

            writer.WriteStartArray();
            writer.WriteValue(g);
            writer.WriteEnd();

            string bson = BytesToHex(ms.ToArray());
            Console.WriteLine(bson);
            Assert.Equal("1D-00-00-00-05-30-00-10-00-00-00-04-D7-EE-21-D8-5C-4B-C9-43-8A-C2-69-28-E5-79-B7-05-00", bson);
        }
        private string WriteAndReadStringPropertyName(string val)
        {
            MemoryStream ms = new MemoryStream();
            BsonWriter bs = new BsonWriter(ms);
            bs.WriteStartObject();
            bs.WritePropertyName(val);
            bs.WriteValue("Dummy");
            bs.WriteEnd();

            ms.Seek(0, SeekOrigin.Begin);

            BsonReader reader = new BsonReader(ms);
            // object
            reader.Read();
            // property name
            reader.Read();
            return (string)reader.Value;
        }