forked from CGM_Public/pretix_original
- [x] Provide data model and configuration toggle - [x] Allow to delete individual test orders - [x] Add tests - [x] Add a prominent warning message to the backend if test mode orders exist (even though test mode is off), as this leads to wrong statistics - [x] Decide if and how to generate invoices for test orders as invoice numbers cannot be repeated or should not have gaps. - [x] Decide if and how we expose test orders through the API, since our difference pull mechanism relies on the fact that orders cannot be deleted. - [x] Decide if and how we want to couple test modes of payment providers? - [ ] pretix.eu: Ignore test orders for billing - [ ] Adjust payment providers: Mollie, bitpay, cash, fakepayment, sepadebit 