• Output of node_modules/.bin/electron --version: 4.0.0
• Operating System (Platform and Version): OSX
• Output of node_modules/.bin/electron --version on last known working Electron version (if applicable):

Expected Behavior
Test should behave consistently.

Actual behavior
Test seems to be flaky.

Additional Information
Here is the flaked test run:
https://github.com/electron/electron/pull/15023/checks?check_run_id=23183436
And the successful re-run:
https://github.com/electron/electron/pull/15023/checks?check_run_id=23228533