#Jest

2 posts tagged Jest

MSW v1 to v2: The Jest Setup Nobody Warns You About

Migrating MSW from v1 to v2 sounds straightforward until your test suite explodes. A walkthrough of the polyfills, fetch replacements, and config changes needed to make Jest work with MSW v2.

MSWJestNext.js

Jest vs Vitest: Architecture, Migration Gotchas, and When to Use Which

8 min read

A deep dive into how Jest and Vitest differ under the hood, from module systems and isolation to mock hoisting and timer APIs, plus practical migration tips.

vitestjesttesting