Modularizing Legacy Projects Using TDD: Test-Driven Development with XCTest for iOS

© Khaled El-Morabea and Hassaan El-Garem 2021

K. El-Morabea, H. El-GaremModularizing Legacy Projects Using TDDhttps://doi.org/10.1007/978-1-4842-7428-6_10

10. Taming Core Data

Khaled El-Morabea¹   and Hassaan El-Garem²

(1)

Giza, Egypt

(2)

Cairo, Egypt

 

Core Data is one of the most famous frameworks known to iOS developers. Core Data has been available since the release of iOS 3, and it has evolved a lot since then. A common misconception is that Core Data is a database or a database wrapper. Though persisting data is one of its features, Core Data is much more than that. The essence of Core Data is that it manages our application’s object graph. An object graph is basically a collection of objects connected with relationships (Figure 10-1). Core Data ...