Electron Releases

Description of Change

The File System denial test can hide assertion failures behind 30-second timeouts. Mocha does not await its async IPC callback, so a failed assertion leaves done() uncalled.

Await setup and window-scoped IPC, assert the permission denial in the test body, and trace each phase to identify any remaining stall. This fixes error reporting; the cause of the Windows flake remains unconfirmed.

Affected branches: 45-x-y, 44-x-y, 43-x-y, and 42-x-y. Backports to 43 and 42 must retain their _writeFilesForTesting clipboard API.

Validation

• Linux/Xvfb: 10 tests passed without retries, using the existing local build and -g '^chromium features File System API,'.
• Controlled checks reproduced the hidden assertion and verified that the revised test reports errors directly.
• Scoped lint and formatting passed. Windows and the full suite were not run.

Checklist

• I have built and tested this change
• I have filled out the PR description
• I have reviewed and verified the changes
• npm test passes
• tests are changed or added
• PR release notes describe the change in a way relevant to app developers, and are capitalized, punctuated, past tense, and no longer than 80 characters.

Release Notes

Notes: none