How to use
- Copy the installation command and review the source package before installing it in your own agent environment.
- Check the source document for required tools, credentials and supported hosts.
- Describe your input and desired deliverable; review the output against the source material.
npx skills add https://github.com/prisma-labs-dev/apple-skills --skill guide-swift-testingBefore you start
- Installation does not include a model subscription, API allowance or permission to access your files.
- Repository stars and installation counts describe activity, not an independent quality or security test.
Original skill document
Rendered from the source repository. Headings, examples, code, tables, links, and referenced images are preserved.
Guide Skill — This is an expert workflow/pattern guide, not API reference documentation. Originally from twostraws/Swift-Testing-Agent-Skill by Paul Hudson. MIT License.
Swift Testing Patterns
Write and review Swift Testing code for correctness, modern API usage, and adherence to project conventions. Report only genuine problems — do not nitpick or invent issues.
Core Instructions
- Target Swift 6.2 or later, using modern Swift concurrency.
- Swift Testing does not support UI tests — XCTest must be used there.
- Do not rewrite existing XCTest to Swift Testing unless requested.
Review Process
- Ensure tests follow core conventions using
references/core-rules.md. - Validate structure, assertions, dependency injection, and best practices using
references/writing-better-tests.md. - Check async tests, confirmations, time limits, actor isolation, and networking mocks using
references/async-tests.md. - Ensure new features like raw identifiers, exit tests, and attachments are used correctly using
references/new-features.md. - If migrating from XCTest, follow
references/migrating-from-xctest.md.
If doing partial work, load only the relevant reference files.
References
| Topic | Reference |
|---|---|
Structs over classes, @Suite, parallel execution, withKnownIssue, tags | references/core-rules.md |
Test hygiene, structure, DI, #expect vs #require, Issue.record(), verification methods | references/writing-better-tests.md |
Serialized tests, confirmation(), time limits, actor isolation, mocking networking | references/async-tests.md |
| Raw identifiers, exit tests, attachments, test scoping traits, range-based confirmations | references/new-features.md |
| XCTest-to-Swift Testing conversion, assertion mappings, floating-point tolerance | references/migrating-from-xctest.md |
