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() |

Orientación experta sobre las mejores prácticas, patrones e implementación de Swift Testing. Úselo cuando los desarrolladores mencionen: (1) Swift Testing, @Test, #expect, #require o @Suite, (2) "usar Swift Testing" o "patrones de prueba modernos", (3) pruebas dobles, simulacros, stubs, espías o accesorios, (4) pruebas unitarias, pruebas de integración o pruebas instantáneas, (5) migración de XCTest a Swift Testing, (6) TDD, Arrange-Act-Assert o PRIMERO. principios, (7) pruebas parametrizadas u organización de pruebas. Fuente: bocato/swift-testing-agent-skill.

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