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.