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AutisticAF
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swift-testing

Replace XCTest workflows with Swift Testing using @Suite and @Test annotations.

4|1|Updated Apr 2, 2026
Search Tags:#testing#migration#swift#traits#swift-testing#parameterized-tests#xcode-16
One-click install
npx skills add https://github.com/AutisticAF/claude-code-apple-dev-plugin --skill swift-testing-autisticaf
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: swift-testing
Source: https://github.com/AutisticAF/claude-code-apple-dev-plugin/tree/main/skills/swift-testing
Command: npx skills add https://github.com/AutisticAF/claude-code-apple-dev-plugin --skill swift-testing-autisticaf

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Swift Testing provides a modern, expressive testing framework to replace legacy XCTest syntax, enabling clearer test definitions and richer traits, suites, and parameterization.

Core Features & Use Cases

  • Structured in Swift with @Suite and @Test for clear organization
  • Parameterized tests, traits, and flexible lifecycle management
  • Smooth migration guidance between XCTest and Swift Testing, plus mixed environments

Quick Start

Annotate tests with @Suite and @Test and run swift test to execute them.

Frequently Asked Questions about swift-testing

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

FAQPage Schema
How do I migrate XCTest tests to Swift Testing in Xcode 16?▼

Migrate XCTest tests to Swift Testing by annotating classes with @Suite and functions with @Test, importing the Testing framework. XCTest and Swift Testing can coexist in the same target for smooth, incremental migration.

How do parameterized tests work in Swift Testing?▼

Parameterized tests in Swift Testing pass multiple input arguments to a single @Test function. This enables comprehensive coverage across data sets without duplicating test logic.

Can I use XCTest and Swift Testing in the same target?▼

Yes, XCTest and Swift Testing coexist seamlessly in the same target. This allows incremental migration without rewriting legacy tests all at once.

What are traits in Swift Testing and how do I use them?▼

Traits in Swift Testing modify test behavior and organize test suites. Apply them via @Test and @Suite annotations to enable flexible lifecycle management and richer test definitions.

How do I organize tests using suites in Swift Testing?▼

Organize tests using suites in Swift Testing by grouping related @Test functions within a @Suite annotated class. This provides clear structural organization for test workflows.

Do I need Xcode 16 to run Swift Testing?▼

Yes, Xcode 16 or later is required to use Swift Testing. The modern framework relies on annotations like @Suite and @Test that run via the swift test command.

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