swift-testing

Migrate XCTest suites to Swift Testing with macro-based assertions.

Updated Jan 29, 2026
One-click install
npx skills add https://github.com/liujinwakayakulie/iOS-dev-kit --skill swift-testing-liujinwakayakulie
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: swift-testing
Source: https://github.com/liujinwakayakulie/iOS-dev-kit/tree/main/ios-dev-kit/skills/swift-testing
Command: npx skills add https://github.com/liujinwakayakulie/iOS-dev-kit --skill swift-testing-liujinwakayakulie

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Swift Testing solves the problem of verbose XCTest migrations by introducing a modern Swift testing framework that uses macros and structured concurrency to simplify test definitions and improve readability.

Core Features & Use Cases

  • Macro-based assertions: #expect and #require provide soft and hard checks.
  • Async and parameterized tests: write asynchronous tests and run parameterized scenarios with concise syntax.
  • XCTest migration: guidance and patterns to migrate existing XCTest suites to Swift Testing.

Quick Start

Create a new test suite annotated with @Suite and add @Test methods that use #expect to validate behavior. For example, define a suite and a test that asserts basic arithmetic or feature behavior.

Frequently Asked Questions about swift-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I migrate my XCTest suite to modern Swift testing?

To migrate XCTest to modern Swift testing, you replace verbose test definitions with macro-based assertions and structured concurrency, organizing tests using @Suite and @Test methods for improved readability and concise syntax.

What is the difference between #expect and #require in Swift testing?

In Swift testing, #expect provides soft checks that record failures without stopping execution, while #require provides hard checks that immediately halt the test upon failure, ensuring critical assertions pass before continuing.

How do I write async tests using the Swift testing framework?

You write async tests in the Swift testing framework by annotating methods with @Test and leveraging built-in structured concurrency support, allowing you to validate asynchronous behavior with concise syntax.

Can I run parameterized tests in Swift without XCTest?

Yes, you can run parameterized tests in Swift without XCTest by using the modern Swift testing framework, which supports parameterized scenarios natively through concise macro-based syntax.

What is the best way to organize complex iOS test suites?

The best way to organize complex iOS test suites is using the @Suite annotation to group structured @Test methods, providing a modern Swift syntax that simplifies test definitions and improves overall readability.

Does Swift testing support existing XCTest codebases during migration?

Yes, Swift testing supports existing XCTest codebases during migration by providing specific guidance and patterns to incrementally transition your verbose XCTest suites to the modern macro-based framework.