axiom-swift-testing

Migrate XCTest unit tests to Swift Testing by replacing test classes with @Suite and test methods with @Test macros, then converting assertions to #expect and #require. Gradually update files to enable parallel execution and faster feedback.

Run parameterized tests in Swift using the Swift Testing framework's @Test macro. Apply parameterized test patterns alongside traits to simplify test architecture and expand coverage across multiple inputs.

Yes, Swift Testing supports deterministic async testing. Use utilities like swift-concurrency-extras and swift-clocks to control time and concurrency, ensuring isolated and reliable async test execution.

Yes, you can use Swift Testing for host-less testing in Swift projects. The framework supports host-less test execution, allowing you to run tests using the swift test command without needing a host application.

Swift Testing creates fresh test instances for each test to ensure safe isolation and improve reliability. This approach prevents shared state between tests, enabling parallel execution without data races or flaky results.

A limitation of migrating XCTest to Swift Testing is the need to refactor setup and teardown patterns into the new @Suite structure. Teams must carefully manage the gradual migration of files to handle parameterized tests and parallel execution safely.