Testing React
summary
Argues that tests must assert concrete behavior: that a Switch actually toggles, that a Palette update changes a button color and survives a simulated reload, and that mocked intl or Redux providers don’t hide regressions. Rewrites examples (Switch, Palette), uses react-testing-library to render and fire DOM events, resorts to enzyme only for a genuine implementation-detail need, and wraps providers plus an enhanced rerender to verify persisted Redux state, showing refs as a last-resort for internals.
AI-written summary · about
chapters (8)
- 0:00Start
- 1:04The Wrong Way To Write Tests
- 4:28Implementation
- 8:00React Hooks
- 8:50React Testing Library
- 10:20What Is React
- 11:46Firing Events
- 12:22Testing React Output Component
