React Testing Library: Render, Screen & Queries. RTL encourages testing components the way users interact with them — through accessibility roles, labels, and visible text — rather than testing implementation details lik…
ReadReact Testing Library: User Events & Async. userEvent (v14). Always prefer userEvent over fireEvent — it simulates real browser interactions including focus, keyboard, pointer events, and input composition.. import userE…
ReadReact Testing Library: Providers, MSW & Best Practices. Custom render with Providers. // src/test/test-utils.tsx — wrap render with all global providers import { render, RenderOptions } from '@testing-library/react' impo…
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