swift-testing-expert

To migrate XCTest suites to Swift Testing, you should use an incremental migration plan that transitions legacy tests to parameterized designs and trait-based configurations. This refactoring improves test coverage and ensures parallel-safe execution.

Asynchronous testing in Swift Testing uses modern assertion syntax like #expect and #require within structured concurrency patterns. This approach provides clearer, diagnostic-rich test failures while validating parallel-safe asynchronous operations.

Writing parallel-safe tests in Swift involves using the modern Swift Testing framework with trait-based configuration and parameterized test design. This structure prevents flaky test execution and ensures robust validation across concurrent operations.

You should use #expect and #require over XCTest assertions to achieve clearer, more diagnostic-rich test failures. These modern assertion macros integrate natively with Swift Testing to provide detailed failure context during test review.

You can incrementally refactor a flaky XCTest suite by transitioning to Swift Testing with structured migration workflows. This approach allows you to modernize test structure and improve parallel execution while maintaining existing test coverage.