testing cards in stripe code example
Example 1: stripe test card
Card Number: 4242 4242 4242 4242
CVV: 123
Expiry: {any date in future}
Example 2: stripe test cards
Card_Works = 4242 4242 4242 4242
Authentication_Required = 4000 0025 0000 3155
Payment_Declined = 4000 0000 0000 9995