
Swift Testing, Apple’s modern replacement for the aging XCTest framework, offers iOS developers a more expressive and Swift-native way to write tests. Unlike XCTest’s verbose assertion methods and rigid naming conventions, Swift Testing brings elegant new macros like #expect and #require, powerful organizational features through traits and tags, built-in support for parameterized tests that run in parallel, and seamless async/await integration—all while maintaining the familiar structure developers know but with significantly cleaner, more readable code. This comprehensive guide will walk you through everything from basic setup to advanced features, helping you write better tests with more clarity.



