[pavement]

Payment processors frequently conduct "no-capture" test transactions for authorizations of possibly $1, before tokenizing CC info. Arguably, this follows the pattern of an integration test.

Ecommerce providers often follow a process of cycling an immaterial test product through a real credit card for pennies, with a petty cash credit card, to exercise the purchase/refund cycle, end-to-end, depending on the activities of the project. A runaway batch process with an infinite loop of purchases is bad, infinite refunds is even worse.

Sometimes these tests are needed to ensure that the service account exists on the third party system, is recognized, and has limited permissions for a fixed, restricted set of API calls. The tests might be run only during a release deployment, against live production, but more frequently against a third party sandbox host while coding. This is a very common pattern.

[aeorgnoieang]

> Ecommerce providers often follow a process of cycling an immaterial test product through a real credit card for pennies, with a petty cash credit card, to exercise the purchase/refund cycle, end-to-end, depending on the activities of the project.

That sounds familiar. I'm sure that was being done at the last place I worked, an e-commerce 'agency'.