Playwright for the browser, Vitest for JavaScript, pytest for Python. Codex drives Playwright through the complicated scenarios.
Use it when
- Every project. Agents need tests to know when they're done.
Pricing
Free.
Instead, consider
- Stryker mutation testing Checking the tests themselves.
Where it fits
- Building with AI agents: Pick 03.
Agents need tests to know when they're done.
Last reviewed by Nicolas Dao