I've inherited a project that uses google subscriptions and generates orders that recur on a monthly basis.
I have set-up a sandbox buyer account, but I'm unsure how to test the recurring order system, without having to wait a month in between.
Ideally I'd be able to re-bill a monthly recurring order after a few minutes, whilst in sandbox mode.
It'd also be useful to send callback xml to the callback script to verify that all is working in that respect.