Session
Component Testing in 2025, the return of the browser
We replaced brittle browser tests with sleek Jest + jsdom—then learned “fast” and “simple” can still be wrong.
This talk shares what failed, what ultimately worked, and a practical framework for combining unit, component, and end-to-end (E2E) tests across Jest/Vitest, Testing Library, Cypress, and Playwright. Save yourself the next rewrite.
1. Cold open: “We rewrote; it got worse.”
2. Autopsy: what broke in JSdom & why
3. Taxonomy: unit vs. component vs. integration/E2E
4. Tooling map: Vitest, Playwright, and Storybook
5. Recommendation + checklist you can take home
6. Q&A (3)
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