While performing tests, both manual and automated, we need resources to emulate realistic scenarios. This page aims to be a repository of references of those resources.
Test credit cards are to be used in user journeys that require payments / donation. Donations and Prize Platform are examples of such workflows. We can use the test credit cards to validate the workflow, assuring the user journey completes successfuly, and to test how the backend services process the payment event.
World Pay supplies a test credit cards page allowing us to simulate most credit card vendors:
https://developer.worldpay.com/docs/wpg/reference/testvalues#test-card-numbers
Braintree test credit cards page
https://developers.braintreepayments.com/guides/credit-cards/testing-go-live/php
Stripe test card numbers page
https://stripe.com/docs/testing
For paypal sandbox account details see below: