Evan, thanks for your work on Vite. We adopted Vite early on for a large Vue project. My main concern is the testing story. Any ETA on when we'd see official support for something like Jest?
Proper Jest integration is blocked by async transformers (https://github.com/facebook/jest/pull/9889) which should land as part of Jest 27, so we are mostly waiting on that.
In the meanwhile, you can also consider:
- @web/test-runner (https://modern-web.dev/docs/test-runner/overview/)
- Cypress (both e2e and unit testing via its component test runner https://www.cypress.io/blog/2021/04/06/introducing-the-cypre...)
- Check out https://github.com/sodatea/vite-test-example for an example using the above.