Unable to map RecoveryTicket to RecoveryRecord, and backwards

BltMapTests.cs

    [TestClass]
    public class ForGitHub
    {
        #region Types

        public class RecoveryRecord
        {
            public string Token { get; set; }
        }

        [MapField("Token", "TokenData.Token")]
        public class RecoveryTicket
        {
            private readonly RecoveryTokenData _tokenData;

            #region Ctors

            public static RecoveryTicket Create(string token)
            {
                return new RecoveryTicket(token);
            }

            protected RecoveryTicket()
            {
            }

            protected RecoveryTicket(string token)
            {
                _tokenData = RecoveryTokenData.Create(token);
            }

            #endregion

            [MapField(Storage = "_tokenData")]
            public RecoveryTokenData TokenData
            {
                get { return _tokenData; }
            }
        }

        public class RecoveryTokenData
        {
            #region Ctors

            public static RecoveryTokenData Create(string token)
            {
                return new RecoveryTokenData(token);
            }

            protected RecoveryTokenData()
            {
            }

            protected RecoveryTokenData(string token)
            {
                _token = token;
            }

            #endregion

            private readonly string _token;

            [MapField(Storage = "_token")]
            public string Token
            {
                get { return _token; }
            }
        }

        #endregion

        [TestMethod]
        public void TestMapping()
        {
            RecoveryTicket rt = RecoveryTicket.Create("token");
            RecoveryRecord rr;

            //Act
            rr = Map.GetObjectMapper<RecoveryTicket, RecoveryRecord>()(rt);

            //Assert
            Assert.IsNotNull(rr.Token);
        }
    }