public void UserWithoutClaims_MyClaims_AreIgnored()
        {
            var user = new IdentityUser();

            var document = user.ToBsonDocument();

            Assert.False(document.Contains("MyClaims"));
        }
        public void User_Id_IsRepresentedAsBsonObjectId()
        {
            var user = new IdentityUser();

            var document = user.ToBsonDocument();

            Assert.IsType<BsonObjectId>(document["_id"]);
        }