Testing Rollup Projects

[AndrewLeedham]

Curious if Vitest could be used to test existing Rollup projects. Given Vite already uses Rollup to some degree, would it be plausible to point Vitest at a rollup.config.js or perhaps some-sort of thin wrapper in a vite.config.ts.

Rollup seems to be a better fit for building Node.js CLIs, as they don't need a dev-server or SSR etc. Otherwise, I would just convert the project to Vite.

Not sure how deeply integrated the 2 tools are or whether Vitest is using ESBuild more as it is not building to output, so this could be completely impractical, just thought I would throw it out there as an idea.