Yeah same, I've built a few integrations with payment gateways. I make extensive use of the test environment, for sure. But when it's gone live I've always done

Yeah same, I've built a few integrations with payment gateways. I make extensive use of the test environment, for sure. But when it's gone live I've always done a single test purchase with a real card, just to be sure, and checked that the transaction appeared in the appropriate dashboards and reports from the payment processor.