tsx issue with nyc instumented files:

[derdeka]

Acknowledgements

• [x] I read the documentation and searched existing issues to avoid duplicates
• [x] I understand this is a bug tracker and anything other than a proven bug will be closed
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Minimal reproduction URL

https://stackblitz.com/edit/node-r2m8mrnc?file=package.json

Problem & expected behavior (under 200 words)

• What happened

  When using nyc and tsx the instumented files cause an error: Cannot read properties of undefined (reading 'startsWith').

  I think this line is causing the issue, as modules don't always have an id: https://github.com/privatenumber/tsx/blob/28a3e7d2b8fd72b683aab8a98dd1fcee4624e4cb/src/cjs/api/module-extensions.ts#L107

• How to repoduce

  Use stackblitz or manual steps:

  npm init -y
  npm i [email protected] [email protected] --save-dev --save-exact
  echo "node-options=--import=tsx" > .npmrc
  echo "{\"all\": true, \"sourceMap\": true, \"instrument\": true}" > .nycrc.json
  echo "console.log('hello world')" > dummy.js
  npx nyc node dummy.js
  

• Screenshots

Bugs are expected to be fixed by those affected by it

• [x] I'm interested in working on this issue

Compensating engineering work will speed up resolution and support the project

• [ ] I'm willing to offer $10 for financial support