How to test server-side rendering?

[fongandrew]

I'm trying to run renderToString in a test for a module meant to run on the server but getting Error: renderToString is not supported in the browser, returning undefined.

I'm using Vite with vitest and have the solid({ ssr: true }) plugin set in my Vite config. Is there some way to force it to render as if it were on a Node server? How does Solid know which environment it's in?

[atk]

Have a look at the setup of the solid-primitives project. We test both, since many of our primitives are usable in both environments.

[fongandrew]

Nice, thanks!

Quick reference for anyone else poking: https://github.com/solidjs-community/solid-primitives/blob/4af32ec3c9d97b54677ac9fa696ba11299eb2bab/configs/vitest.config.ts