public async Task InsertOneRowWithNull()
        {
            var list = new List <SFMC4NET_TestDE>();
            var user = new SFMC4NET_TestDE {
                Id = "6", FirstName = "Sixth", TestTime = DateTime.Now
            };

            list.Add(user);
            Exception exception = null;

            try
            {
                await dataExtensionManager.SendRows(dataExtensionId, list);
            }
            catch (Exception ex)
            {
                exception = ex;
            }

            Assert.Null(exception);
        }
        public async Task InsertOneRowWithoutDate()
        {
            var list = new List <SFMC4NET_TestDE>();
            var user = new SFMC4NET_TestDE {
                Id = "5", FirstName = "Fifth", LastName = "Lastname"
            };

            list.Add(user);
            Exception exception = null;

            try
            {
                await dataExtensionManager.SendRows(dataExtensionId, list);
            }
            catch (Exception ex)
            {
                exception = ex;
            }

            Assert.Null(exception);
        }