I've a Magento website that I'm using for some tests and I need to setup an easy payment method that can make me able to buy something without any risk to get real payment from random users but I also need to register this order with a "complete" status immediately (I've also another add-on that will export complete orders to an external platform but only if they're completed).
I was thinking to use the "Check / Money Order" but there is only one option configurable from "System/Configuration/Payment Methods" and it's the "Pending" status.
I'm quite new with Magento so, is there any easy method to change that status and register automatically the Order as Complete also if using the Payment method? If not, there is the possibility to enable another payment method without any Credit Cards, CC, Bank transfert,... option??
Thanks a lot! Cheers Francesco