protected override bool EvaluateIsValid()
{
string value = GetControlValidationValue(ControlToValidate);
if (AllowEmpty && String.IsNullOrEmpty(value))
{
return(true);
}
return(LuhnUtility.IsCardNumberValid(value, AllowSpaces));
}
public override bool IsValid(object value)
{
string cardNumber = (string)value;
if (String.IsNullOrEmpty(cardNumber))
{
return(AllowEmpty);
}
return(LuhnUtility.IsCardNumberValid(cardNumber, AllowSpaces));
}
public void CalculateCheckDigitShouldFailForInvalidInput(string value)
{
var exception = Assert.ThrowsAny <Exception>(() => LuhnUtility.CalculateCheckDigit(value));
Assert.Contains(
exception.GetType(),
new List <Type>
{
typeof(ArgumentNullException),
typeof(ArgumentException)
}
);
}
public void ValidationShouldReturnTrueForValidInput(string input)
{
Assert.True(LuhnUtility.Validate(input));
}
public void ValidationShouldReturnFalseButNotThrowForInvalidInput(string input)
{
Assert.False(LuhnUtility.Validate(input));
}
public void CalculateCheckDigitShouldGenerateValidCheckDigits(string inputValue, int expectedCheckDigit)
{
Assert.True(LuhnUtility.TryCalculateCheckDigit(inputValue, out var actualCheckDigit));
Assert.Equal(expectedCheckDigit, actualCheckDigit);
}
