How do I handle asynchronous tests in Swift Testing?

The skill guides you through using async/await within tests and the 'confirmation' function for verifying callbacks, notifications, or other non-linear events.

Does it support parameterized testing?

Absolutely. It provides syntax and patterns for running the same test logic across multiple inputs, including collection zipping and cartesian products for exhaustive testing.

Can I use this skill to migrate from XCTest?

Yes, the skill provides specific mapping patterns and examples to convert XCTestCase classes into modern @Suite structs and @Test functions efficiently.

What is the difference between #expect and #require?

#expect records a failure but allows the test to continue, while #require throws an error and stops the test immediately, which is ideal for unwrapping optionals or checking prerequisites.

Swift Testing Assistant

Name: Swift Testing Assistant
Author: lev-os

bylev-os

0•

Mobile Development

Writes, migrates, and debugs unit tests using Apple's modern Swift Testing framework with @Test macros and #expect assertions.

This skill provides specialized guidance for utilizing Apple's Swift Testing framework, the modern replacement for XCTest introduced with Swift 6 and Xcode 16. It helps developers implement expressive unit tests using macros, handle complex asynchronous behaviors with confirmations, and organize test suites using structs rather than classes. Whether you are building new features or migrating legacy XCTest codebases, this skill ensures your testing strategy leverages advanced features like parameterized tests, custom traits, and parallel execution best practices.

主要功能

01Conditional test execution using tags and custom traits

020 GitHub stars

03Asynchronous event verification with confirmation blocks

04Native Swift 6 macro implementation (@Test, #expect, #require)

05Data-driven testing with advanced parameterized arguments

06XCTest to Swift Testing migration strategy and mapping

使用场景

01Migrating legacy XCTest suites to modern Swift Testing syntax

02Implementing parameterized tests to validate business logic across multiple data inputs

03Debugging flaky asynchronous tests using specialized time limits and serialized traits

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add lev-os/agents swift-testing

For use in Claude.ai and ChatGPT

Download Skill