Testing payments is essential when working with WooCommerce. This ongoing (will be updated from time to time) post is a collection of links where you can find testing information for various payment gateways. They are in alphabetical order:
General fake credit card data generator.
So useful: http://www.getcreditcardnumbers.com/
- Authorize.net:
Sign up for Sandbox account
Test Credit Card numbers - Braintree:
Sign up for a Sandbox account - FirstData
First Data Global Gateway Virtual Terminal Demo - Firstdata Payeezy
Payeezy Sign up for demo account
Payeezy Sign up for a sandbox account
Payeezy Test Credit Card numbers - PayPal:
Sign up for Sandbox account - Simplify Commerce
Test Credit Card numbers - Stripe
Stripe Test Credit Card numbers - Razorpay
Razorpay Test Card Numbers