// 4 articles available
URLProtocol is one of the oldest interception points in Foundation's networking stack. It lets you mock, log, or transform any URLSession request without touching the code that makes the request.
Swift Testing replaces XCTest with a cleaner macro-based API. Learn how to write tests with @Test, #expect, parameterized inputs, and traits in Xcode 16+.
Learn how to test push notifications on iOS simulators without needing a device or server setup using xcrun simctl push.
Learn how to use Xcode's Device Conditions feature to simulate thermal state and network conditions to test your app under real-world stress scenarios.