Testing & QA Practices

Use this skill when adding tests, fixing failing tests, or deciding how to verify a change safely.

Priorities

1. Test real behavior
2. Keep tests deterministic
3. Match test scope to risk
4. Prefer fast feedback
5. Keep tests maintainable

Core Rules

1. Start with the smallest useful test

• Unit tests for isolated logic
• Integration tests for contracts between components
• E2E only for critical user journeys and system-level confidence