How to test auto-renewable subscription?

I have an app with an auto-renwable item in the inApp-Purchase.

Let's say, with an period of 7 days.开发者_JAVA百科

If a test-User buys the item...

How can I check the expiration-date?

I can observe it with restoreCompletedTransaction, but there will be an Dialog to the user. Which is not so nice. Is there any other way without a server?

How can I handle the test-phase? I don't see a way to shorten the 7 days... does it mean I have to wait 7 days, to see that I'm handling it right if the user doesn't subscribe again?

thank you xnz

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You can send the receipt to a server of yours and have it check and re check the receipt. When the subscription is prolonged your server receives an additional receipt indicating that.

I am not sure if this is possible within the app. You need a certificate and a shared-secret to verify auto renewables. It might be a bad idea to have the certificate and the shared-secret within your app.

You can find Apples documentation here:

http://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/StoreKitGuide/RenewableSubscriptions/RenewableSubscriptions.html

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There is some info by Apple that recommends to verify the receipt on your own server for security reasons:

http://developer.apple.com/library/ios/#releasenotes/StoreKit/IAP_ReceiptValidation/index.html

They also say, to know the status of your IAP (in the article, Consumable, but I guess it would work for subscriptions too) you can save the receipt, recall it when needed and verify it again, receiving an updated receipt.