public void MinDateTime_Message_AreEqual()
        {
            const string column  = "MinDateTime";
            const string message = "測試{0}{1}";
            DateTime     min     = DateTime.Today;

            IFormValidator validator = provider.MinDateTime(min, message)(column, min.AddDays(-1).ToString("yyyy/MM/dd"));

            validator.Validate();

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