public void IsValidCreditCardNumberTest()
{
ICardNumberGenerator cardNumberGenerator = CardNumberGenerator.Instance;
string numDash = "4111-1111-1111-1111";
string numSpace = "4111 1111 1111 1111";
string numNoSpace = "4111111111111111";
string numBadSep = "4111.1111.1111.1111";
string numBadLen = "4111-1111-1111-111";
Assert.IsTrue(cardNumberGenerator.IsValidCreditCardNumber(numDash), "IsValidNumber should allow numbers with dashes");
Assert.IsTrue(cardNumberGenerator.IsValidCreditCardNumber(numSpace), "IsValidNumber should allow numbers with spaces");
Assert.IsTrue(cardNumberGenerator.IsValidCreditCardNumber(numNoSpace), "IsValidNumber should allow numbers with no spaces");
Assert.IsFalse(cardNumberGenerator.IsValidCreditCardNumber(numBadLen), "IsValidNumber should not allow numbers with too few numbers");
Assert.IsFalse(cardNumberGenerator.IsValidCreditCardNumber(numBadSep), "IsValidNumber should not allow numbers with dot separators");
}
/// <summary>
/// Action to Validate Credit Card Number.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnValidate_Click(object sender, EventArgs e)
{
ICardNumberGenerator cardNumberGenerator = CardNumberGenerator.Instance;
if (txtCard.Text.Length > 0)
{
string cardNum = txtCard.Text;
if (cardNumberGenerator.IsValidCreditCardNumber(cardNum))
{
Constants.CardIssuer?cardType = cardNumberGenerator.GetCardTypeFromNumber(cardNum);
string strCardType = (cardType == null) ? "Unknown" : cardType.ToString();
showMessage(String.Format("You have entered a valid card number. The card type is {0}.", strCardType), true);
}
else
{
showMessage("Card failed test. Please enter a valid card number.", false);
}
if (cardNumberGenerator.IsRewardsCardNumber(cardNum))
{
Constants.CardIssuer?cardType = cardNumberGenerator.GetCardTypeFromNumber(cardNum);
string strCardType = (cardType == null) ? "Unknown" : cardType.ToString();
showMessage(String.Format("You have entered a reward card number. The card type is {0}.", strCardType), true);
}
}
else
{
showMessage("Please enter a card number first.", false);
}
}