Snapshot test Swift macros using the MacroTesting library.
npx skills add https://github.com/khoi/dotfiles --skill pfw-macro-testing
Please help me install this Agent Skill. Skill: pfw-macro-testing Source: https://github.com/khoi/dotfiles/tree/main/chezmoi/dot_pfw/skills/macro-testing Command: npx skills add https://github.com/khoi/dotfiles --skill pfw-macro-testing
Snapshot test Swift macros using the MacroTesting library to verify macro behavior and guard against regressions.
Add the swift-macro-testing dependency, hook MacroTesting to your test target, and import MacroTesting to begin snapshot testing macros.
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You can snapshot test Swift macros by adding the MacroTesting library to your test target and importing it to compare macro expansions against saved snapshots, verifying behavior and guarding against regressions.
The best way to verify Swift macro expansions across versions is using snapshot testing with MacroTesting, which compares expanded macro outputs against reference snapshots to detect unintended changes in your Swift packages.
To integrate MacroTesting into a Swift package test target, add the swift-macro-testing dependency to your Package.swift, hook MacroTesting to your test target, and import the library to begin snapshot testing.
Yes, MacroTesting is designed for isolated macro tests in a dedicated test target within your Swift packages, ensuring dependency management and documented usage are properly separated from your main code.
Swift macros can break during dependency updates because macro expansions change silently, but adding snapshot testing with MacroTesting validates expansions across versions and catches regressions before they reach production.
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