# Testing Library
URL: https://wwadd.dev/tools/testing-library · Official site: https://testing-library.com/docs/guiding-principles/
Kind: User-centered UI testing utilities · License: Open source · Last verified: 2026-09-30

DOM testing utilities focused on accessible roles, labels, and behavior visible to users.

Reach for it when:
- Component tests that exercise user behavior
- Avoiding tests coupled to private component state

Worth knowing: Pair the appropriate framework adapter with a runner and DOM or browser environment. It is not a test runner.