What's swift testing?

Generated on 9/5/2024

1 search

Swift Testing is a modern, open-source testing framework introduced by Apple for the Swift programming language. It is designed to make writing tests more expressive and easier to manage across different platforms. Swift Testing is integrated into major tools and IDEs in the Swift ecosystem, including Xcode 16 and Visual Studio Code.

Key features of Swift Testing include:

  • Expressive APIs: Swift Testing provides expressive APIs that simplify the process of writing tests. You can use macros like expect to evaluate Swift expressions, making it easy to write complex checks.
  • Cross-Platform Support: It works on all Apple operating systems that support Swift concurrency, as well as on Linux and Windows, ensuring consistent behavior across platforms.
  • Open Source: Swift Testing is developed as an open-source package, allowing the community to contribute to its evolution.
  • Integration with Xcode: Xcode 16 has full support for Swift Testing, with features like test organization by tags and parameterized tests.
  • Concurrency: It takes full advantage of Swift's concurrency features, running tests safely in parallel to reduce execution time.

Swift Testing is positioned as a significant improvement over XCTest, offering better functional parity and consistency across platforms. It is part of Apple's ongoing efforts to enhance the Swift ecosystem and improve software quality through automated testing.

For more detailed information, you can refer to the sessions Meet Swift Testing and Go further with Swift Testing from WWDC 2024.

Provide feedback
Platforms State of the Union

Platforms State of the Union

Discover the newest advancements on Apple platforms.

What’s new in Swift

What’s new in Swift

Join us for an update on Swift. We’ll briefly go through a history of Swift over the past decade, and show you how the community has grown through workgroups, expanded the package ecosystem, and increased platform support. We’ll introduce you to a new language mode that achieves data-race safety by default, and a language subset that lets you run Swift on highly constrained systems. We’ll also explore some language updates including noncopyable types, typed throws, and improved C++ interoperability.

Go further with Swift Testing

Go further with Swift Testing

Learn how to write a sweet set of (test) suites using Swift Testing’s baked-in features. Discover how to take the building blocks further and use them to help expand tests to cover more scenarios, organize your tests across different suites, and optimize your tests to run in parallel.

Meet Swift Testing

Meet Swift Testing

Introducing Swift Testing: a new package for testing your code using Swift. Explore the building blocks of its powerful new API, discover how it can be applied in common testing workflows, and learn how it relates to XCTest and open source Swift.