public void MaxDateTime_Message_AreEqual()
        {
            const string column  = "MaxDateTime";
            const string message = "測試{0}{1}";
            DateTime     max     = DateTime.Today;

            IFormValidator validator = provider.MaxDateTime(max, message)(column, max.AddDays(1).ToString("yyyy/MM/dd"));

            validator.Validate();

            Assert.AreEqual(validator.ErrorMessage, string.Format(message, column, max));
        }