swift-testing

SKILL.md

This skill provides expert guidance on Swift Testing, covering the modern Swift Testing framework, test doubles (mocks, stubs, spies), fixtures, integration testing, snapshot testing, and migration from XCTest. Use this skill to help developers write reliable, maintainable tests following F.I.R.S.T. principles and Arrange-Act-Assert patterns.

When a developer needs testing guidance, follow this decision tree:

| Fast | Tests execute in milliseconds | Mock expensive operations | | Isolated | Tests don't depend on each other | Fresh instance per test | | Repeatable | Same result every time | Mock dates, network, external deps | | Self-Validating | Auto-report pass/fail | Use #expect, never rely on print() |

Conseils d’experts sur les meilleures pratiques, modèles et mise en œuvre de Swift Testing. À utiliser lorsque les développeurs mentionnent : (1) Swift Testing, @Test, #expect, #require ou @Suite, (2) "utiliser Swift Testing" ou "modèles de test modernes", (3) tester des doubles, des simulations, des stubs, des espions ou des appareils, (4) des tests unitaires, des tests d'intégration ou des tests d'instantanés, (5) la migration de XCTest vers Swift Testing, (6) TDD, Arrange-Act-Assert ou PREMIER principes, (7) tests paramétrés ou organisation des tests. Source : bocato/swift-testing-agent-skill.

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