ConstReadonlyCARD_DECLINED: "4000000000000002"ReadonlyEXPIRED_CARD: "4000000000000069"ReadonlyFRAUD_SUSPECTED: "4100000000000019"ReadonlyINSUFFICIENT_FUNDS: "4000000000009995"ReadonlyINVALID_CVC: "4000000000000127"ReadonlyLIMIT_EXCEEDED: "4000000000009987"ReadonlyNETWORK_ERROR: "4000000000000341"The payment is processed, but the response is lost: the result is PENDING with
NETWORK_ERROR, and getPayment() then reports the payment as successful.
ReadonlyPROVIDER_ERROR: "4000000000000119"ReadonlyREFUND_FAILS: "4000000000005126"Payments succeed; refunds and cancels fail with PROVIDER_ERROR
ReadonlySUCCESS: "4242424242424242"Succeeds (Visa)
ReadonlySUCCESS_MASTERCARD: "5555555555554444"Succeeds (Mastercard)
ReadonlyTHREEDS_FAILED: "4000008400001629"3D Secure authentication fails (THREEDS_FAILED)
ReadonlyTHREEDS_REQUIRED: "4000002760003184"Declined without 3D Secure (CARD_DECLINED); succeeds with 3D Secure
Magic card numbers. Any other valid card number succeeds. All numbers pass the Luhn check; use any future expiry date and any 3-digit CVC.