For Credit Card (Indonesia) payment method there aren’t any test data available, but you can see how it works with the payment flow given below.
Credit Card Payment Flow
The customer enters his email address, name and phone number.
The customer enters his card details (Cardholder Name, Credit card No, CVC/CVV2, Expiry Date, Card Issuing Country, Card Issuing Bank) and finalizes the payment.
Upon completion of the payment flow, the customer is redirected back to your ReturnURL.