Gio Lodi • 3/2/2016

Using Swift protocols to abstract third party dependencies and improve testability

This technical article discusses a common challenge in software development: testing code that depends on hard-to-control third-party components. It presents a solution using Swift protocols to abstract dependencies, using NSHTTPCookieStorage as a concrete example. The guide shows how to define a protocol, create test doubles for isolated unit testing, and extend the original class for production use, ultimately improving testability and performance.

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#unit testing #dependency injection #Protocols