Review: Test Quality

For Vitest configuration validation (pool options, coverage setup, deprecated patterns), see vitest-4/skills/reviewing-vitest-config/SKILL.md.

Checklist

Test Coverage

• Components have tests for user interactions
• Forms test both success and error paths
• Server Actions tested in isolation
• Custom hooks tested with renderHook
• Edge cases covered (empty states, errors, loading)

React 19 APIs

• Forms using useActionState have tests
• useOptimistic updates tested for immediate feedback
• useFormStatus tested within form component context
• Server Actions tested with mocked auth/database
• use() hook tested with Promises and Context