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StoreKit testing in the Simulator allows you to speed up testing in-app purchases for your app. You can test in-app purchases in Xcode by generating a StoreKit configuration file containing the available products for your app. You’ll be able to purchase products without connecting to App Store servers, without an internet connection, and you’ll be … →

This tutorial zooms in on an important topic for anyone working with Core Data, faulting. Faulting is a concept that often confuses developer new to Core Data. Before I explain what faulting is, I want to show it to you.

Earlier this month, I wrote about Core Data faults. Faulting is a key concept of the Core Data framework. It is because of faulting that Core Data is as performant as it is and it ensures Core Data's memory footprint remains at an acceptable level.