- Build a sandbox of payment processors.
- Check for the application response after the transaction.
- Arrange demo credit/debit card numbers for testing.
- Check for the message that is displayed after a successful transaction.
- Check for the message that is displayed after an unsuccessful transaction.
- Check for the language and currency that is relevant to the location.
- Check for the error message in case the payment fails.
- Redirect to the webpage after finishing the successful transaction.
- Check that all the payment options are working properly (e.g. Netbanking, UPI, credit/debit card).
- Check for the order confirmation message in the mobile number/ email ID/ website after the successful transaction that the order has been placed.
- Check for the message that is displayed after the session expires.
- Check the payment process is using a secured channel (e.g Payment should be done on an HTTPS page rather than HTTP)
- Check what happens if the payment gateway stops responding in the middle of the transaction.
- Check for the entries of transactions in the database that the tester has the access to application database.
- Check for fraud avoidance and security settings.
- Check that the amount is not deducted multiple times while purchasing.
- Check that the refund amount should be the same as the transaction amount.
- Verify the pop-up blocker is working properly during payment.
Payment Gateway Testing & Sample test case
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