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swift-testing

Write Swift unit tests using the Swift Testing framework.

3|Updated Mar 13, 2026
Search Tags:#unit tests#testing#swift#xcode#xctest#swift testing framework
One-click install
npx skills add https://github.com/andrew-d/claude-skills --skill swift-testing-andrew-d
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: swift-testing
Source: https://github.com/andrew-d/claude-skills/tree/main/plugins/swift-ios-skills--swift-core-skills/skills/swift-testing
Command: npx skills add https://github.com/andrew-d/claude-skills --skill swift-testing-andrew-d

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides a comprehensive guide and tooling for writing modern, robust, and efficient tests in Swift using the Swift Testing framework, replacing older XCTest methods for unit testing.

Core Features & Use Cases

  • Modern Syntax: Write tests using @Test, #expect, and #require for clear and concise assertions.
  • Advanced Features: Leverage parameterized tests, test traits, suites, and confirmation for complex testing scenarios.
  • Migration Guidance: Offers patterns for migrating from XCTest to Swift Testing.
  • Use Case: You are developing a new Swift application and need to write unit tests for your business logic. This Skill will guide you through setting up tests using @Test, asserting expected outcomes with #expect, and organizing your tests into logical suites.

Quick Start

Use the swift-testing skill to write a basic test function that checks if a user's display name can be updated.

Frequently Asked Questions about swift-testing

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

FAQPage Schema
How do I write unit tests using the Swift Testing framework?▼

Write unit tests using the Swift Testing framework by defining functions with the `@Test` macro and validating outcomes using `#expect` and `#require` assertions for clear, concise results.

Can I migrate my existing XCTest code to Swift Testing?▼

Yes, you can migrate XCTest code to Swift Testing by replacing XCTest classes and methods with `@Test` macros, `#expect` assertions, and suite organizations using provided migration patterns.

Do I need Xcode 16 to use the Swift Testing framework?▼

Yes, implementing the Swift Testing framework requires Swift 6+ and Xcode 16+ to support modern syntax like `@Test`, parameterized tests, and test traits in your projects.

What is the best way to organize complex unit tests in Swift?▼

Organize complex unit tests in Swift by grouping related tests into suites, utilizing parameterized tests for multiple inputs, and applying test traits to manage behavior and maintainability.

How do confirmation and known issues work in Swift unit testing?▼

Confirmation and known issues in Swift unit testing allow you to verify expected event occurrences and explicitly mark tests with anticipated failures without breaking the overall test suite.

Does Swift Testing support parameterized tests for multiple inputs?▼

Yes, Swift Testing supports parameterized tests, allowing you to run a single `@Test` function across multiple input arguments to validate business logic efficiently and reduce code duplication.

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