What is the primary difference between Swift Testing and XCTest in this skill?

This skill focuses on the new Swift Testing framework which uses macros like @Test instead of class-based inheritance and specific naming conventions required by XCTest.

How does the skill handle failed assertions?

It provides guidance on using #expect for non-halting checks and #require for assertions that must pass to continue the test, such as unwrapping an optional.

Does it support testing asynchronous code?

Absolutely. It provides specific implementation patterns for testing functions that use Swift's async/await concurrency model.

Can I use this skill to migrate existing projects?

Yes, the skill includes best practices for mixing Swift Testing and XCTest in the same project to allow for a gradual, incremental migration.

Swift Testing Framework

Name: Swift Testing Framework
Author: mintuz

bymintuz

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Security & Testing

Guides the implementation of modern unit tests using Apple’s Swift Testing framework with macro-driven patterns.

About

This skill provides specialized guidance for developers using Apple's modern Swift Testing framework as an alternative to XCTest. It helps you write clear, concise tests using Swift macros like @Test, #expect, and #require, facilitating more readable test navigators and robust assertion logic. Whether you are building new iOS/macOS apps or incrementally migrating away from XCTest, this skill ensures your test suites leverage modern features like async/await support, optional unwrapping within tests, and custom issue recording.

Key Features

Assists with incremental migration from legacy XCTest suites
Provides patterns for testing asynchronous and throwing Swift functions
14 GitHub stars
Generates macro-driven tests using @Test annotations and descriptive names
Implements conditional assertions and early-exit requirements with #expect and #require
Manages optional unwrapping and custom issue recording for cleaner test logic

Use Cases

Implementing safe optional unwrapping in tests to avoid runtime crashes during validation
Writing unit tests for complex asynchronous logic in Swift applications
Modernizing legacy iOS test suites by converting XCTest cases to Swift Testing macros

About

Key Features

Assists with incremental migration from legacy XCTest suites
Provides patterns for testing asynchronous and throwing Swift functions
14 GitHub stars
Generates macro-driven tests using @Test annotations and descriptive names
Implements conditional assertions and early-exit requirements with #expect and #require
Manages optional unwrapping and custom issue recording for cleaner test logic

Use Cases

Implementing safe optional unwrapping in tests to avoid runtime crashes during validation
Writing unit tests for complex asynchronous logic in Swift applications
Modernizing legacy iOS test suites by converting XCTest cases to Swift Testing macros