testing-swift

Write Swift unit and integration tests using the Swift Testing framework.

1|Updated Feb 6, 2026
One-click install
npx skills add https://github.com/makgunay/claude-swift-skills --skill testing-swift
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: testing-swift
Source: https://github.com/makgunay/claude-swift-skills/tree/main/testing-swift
Command: npx skills add https://github.com/makgunay/claude-swift-skills --skill testing-swift

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides a modern, streamlined approach to writing tests in Swift, replacing the older XCTest framework with more expressive syntax and powerful features.

Core Features & Use Cases

  • Modern Syntax: Uses @Test, #expect, and @Suite for clearer, more concise test definitions.
  • Parameterized Tests: Easily run the same test logic with multiple data sets.
  • Async Testing: Built-in support for testing asynchronous code using Swift's structured concurrency.
  • Observable Model Testing: Streamlined testing for @Observable models.
  • Migration Path: Provides clear guidance for migrating existing XCTest suites.
  • Use Case: When developing a new Swift feature, use this Skill to write comprehensive unit and integration tests that ensure code quality and prevent regressions.

Quick Start

Write a new test for the ShoppingList model using the @Test attribute and #expect macro.

Frequently Asked Questions about testing-swift

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

FAQPage Schema
How do I write unit tests in Swift using the @Test attribute and #expect macro?

Swift unit testing uses the @Test attribute for test functions and #expect for assertions, providing a modern, expressive syntax to define and validate code behavior clearly.

What is the best way to migrate existing XCTest suites to the modern Swift testing framework?

Migrating XCTest suites to modern Swift testing requires following provided migration guidance to transition XCTest classes into @Suite structures and assertions into #expect macros.

How do I run parameterized tests with multiple data sets in Swift?

Parameterized tests in Swift allow you to easily run the same test logic with multiple data sets by applying the modern testing framework's built-in data-driven test capabilities.

Does modern Swift testing support async code and structured concurrency?

Modern Swift testing fully supports async code, offering built-in capabilities to test asynchronous operations using Swift's structured concurrency directly within @Test functions.

Can I test @Observable models using the modern Swift testing framework?

Yes, you can test @Observable models using the Swift testing framework, which provides streamlined support for validating state changes and observable properties in your tests.