[Flaky CI]: Node Integration Tests - suites/integrations/console/filter/test.ts > Console Integration > filters console messages

[github-actions]

Flakiness Type

Other / Unknown

Name of Job

Node (18) Integration Tests

Name of Test

suites/integrations/console/filter/test.ts > Console Integration > filters console messages [cjs]

Link to Test Run

https://github.com/getsentry/sentry-javascript/actions/runs/29421933959/job/87375603515

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This issue was automatically created.

[linear-code]

JS-3055

[sentry-pierre]

This looks like a genuine flake in the CJS runner path. I checked createRunner.ts and the most likely culprit is a race between complete() killing the child and the remaining stdout being fully captured into logs.

• complete() resolves completedDeferred immediately when the envelope count matches, then kills the child.
• getLogs() is checked right after await runner.completed().
• Buffered stdout chunks can still be in flight when the promise resolves, so the assertions on runner.getLogs() may see incomplete output.
• The CJS auto-flush hook (--require auto-flush.cjs) adds a Sentry.flush(2000) on beforeExit, which changes exit timing relative to ESM and makes the race more visible in [cjs].

Fix direction: the runner should probably await child.stdout.on('end') (or the close event) before resolving completedDeferred, rather than relying on the envelope count alone.