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fast-check
@fast-check.dev

Impressed by how easy it's been to transition to @vitest.dev! We stuck with #Jest for years and really appreciated it, but the lack of full ESM support led us to look for alternatives. So far so good — we've migrated our entire monorepo with almost no cost🥰

2 reposts25 likes

Jakke
@jakke.fi

Similar endorsements from me as well. Super easy to port from jest. Thoughts on the node native runners? With node 22 now in LTS they might also soon be a considerable alternative also

fast-check
@fast-check.dev

It was around 10 to 30 minutes per package of the monorepo. The most impacting change has been to add the imports for it/describe/expect. But even this one can be skipped by toggling on a flag to auto-import them.

fast-check
@fast-check.dev

The switch of fast-check itself took longer. I experienced some minor bugs of @vitest.dev but all of them got fixed pretty quickly. I just have one I still haven't investigated that makes one spec file never ending when in a single file but ending when split. For fast-check, it was around 3h max