This reproduces tests which pass using:
And fail using:
Node.js v20.19.0
❌ Mocha tests (using Babel register) fail:
pnpm test
> mocha "src/**.test.js"
Exception during run: SyntaxError[ @/src/component.test.js ]: Unexpected token '<'
at compileSourceTextModule (node:internal/modules/esm/utils:340:16)
at ModuleLoader.moduleStrategy (node:internal/modules/esm/translators:146:18)
at #translate (node:internal/modules/esm/loader:431:12)
at ModuleLoader.loadAndTranslate (node:internal/modules/esm/loader:478:27)
at async ModuleJob._link (node:internal/modules/esm/module_job:110:19)✅ Babel register on its own works:
pnpm start
> node --require @babel/register src/index.js
<p>Test component</p>Node.js v20.18.3
✅ Mocha tests (using Babel register) pass:
pnpm test
> mocha "src/**.test.js"
component test
✔ exports a component
1 passing (1ms)✅ Babel register on its own works:
pnpm start
> node --require @babel/register src/index.js
<p>Test component</p>