Below, you will find some test credit card numbers. These are always accepted by Miva Merchant's Credit Card Payment with Simple Validation module, as well as most of the other payment gateways, while in test mode.
American Express:
341-1111-1111-1111
378-2822-4631-0005
15 Digits Total
Discover:
6011-6011-6011-6611
6011-1111-1111-1117
16 Digits Total
MasterCard:
5431-1111-1111-1111
5555-5555-5555-4444
16 Digits Total
Visa:
4111-1111-1111-1111
16 Digits Total
Any expiration date that is passed today's date will be valid for testing.
