Hey! I get the following error when running a component test that imports `clsx` in vitest:

``` (node:57821) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension. (Use `node --trace-warnings ...` to show where the warning was created) ❯ src/Route.test.ts (0)

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Failed Suites 1 ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

FAIL src/Route.test.ts [ src/Route.test.ts ] SyntaxError: Unexpected token 'export' ❯ Object.compileFunction node:vm:360:18

Module /node_modules/clsx/dist/clsx.m.js:1 seems to be an ES Module but shipped in a CommonJS package. You might want to create an issue to the package "clsx" asking them to ship the file in .mjs extension or add "type": "module" in their package.json.

As a temporary workaround you can try to inline the package by updating your config:

// vitest.config.js export default { test: { deps: { inline: [ "clsx" ] } } } ```

Seems like renaming `clsx.m.js` to `clsx.mjs` in the dist folder does the trick.