public void CountDecimalDigits__CountsWithNoDecimalPlaces()
{
// arrange
var testNumber = 1;
// act
var result = utils.CountDecimalDigits(testNumber);
// assert:
Assert.IsTrue(result == 0);
}
// Custom Validation
public IEnumerable <ValidationResult> Validate(ValidationContext validationContext)
{
// No future dates
if (Date > MaxDate)
{
yield return(new ValidationResult("Date cannot be in the future.", new string[] { "DateWritten" }));
}
// No dates less than defined minimum
if (Date < MinDate)
{
yield return(new ValidationResult("Only dates within the last 20 years are allowed.", new string[] { "DateWritten" }));
}
var utils = new UtilityService();
if (utils.CountDecimalDigits(Amount) > 2)
{
yield return(new ValidationResult("Amount can only contain 2 decimal places.", new string[] { "Amount" }));
}
}