Hi, I'm trying to add new functional testing using StoreKitTest. I would like to implement a functional testing end-to-end. Retrieving a product, then buying it, sending the receipt to the server to validate it and giving the access. And then adding simple purchase test, upgrade, downgrade... I was very very excited when I discovered StoreKitTest, but I'm facing to an error when the server is trying to validate it. Do I'm doing something wrong ? Is it possible ? I heard that the verifyReceipt endpoint can't valide receipt generated by StoreKitTest. Do someone has an idea do implement a real end-to-end functional testing ? To be honest I'm a bit disappointed, the documentation says "implement a server-side validation", so following this recommendation the application should not do anything with this receipt excepted giving it to the server. So why adding a StoreKitTest if we can't send it to the server ? I think that most companies are using the server as source of truth because the validation is there so, for example, this method is a bit weird IMO refundTransaction(identifier:). 🙂

We have a service offering a 1-month auto-renewal subscription with a free-trial period. We have 3 products, all on the same subscription-group, renewing every month, all offering 1-month free-trial. What happens if the user subscribe to the level-1, get its free-trial then upgrade to the level-2 during this free-trial period ? Will it loose its free-trial period ? or will it be migrated to the level-2 until the end of the free-trial ? Thanks :)