reviewing-test-quality

Test quality for React 19 improves by auditing Vitest configuration, validating coverage across components and server actions, enforcing Testing Library patterns with accessible queries, and ensuring proper async handling with waitFor. This Skill assesses those dimensions and identifies gaps in your test suite.

Test server actions as isolated functions with input validation and error-path coverage, separate from component integration tests. This Skill validates that your server action tests follow best practices and cover edge cases without implementation detail leakage.

Enforce user-interaction tests over implementation details, use accessible queries (getByRole, getByLabelText), apply renderHook for custom hooks, mock external dependencies, and handle async operations with waitFor. This Skill audits your codebase against these conventions and flags anti-patterns.

Validate that tests correctly use React 19 APIs like useActionState, useOptimistic, useFormStatus, and use(). This Skill checks your test patterns to ensure these APIs are tested with proper async handling and realistic user flows.

Yes. This Skill audits test coverage for components, forms, hooks, and server actions, verifying that edge cases and error paths are tested. It ensures hooks use renderHook and forms validate user interactions end-to-end.