test: avoid initial-break wait in restart-message

[inoway46]

Summary

Follow-up to #61773

test/parallel/test-debugger-restart-message.js can still flake on macOS unusual-path runs at the initial waitForInitialBreak(). This change syncs startup on the debugger CLI's ok connection-completion output plus the prompt.

failed CI log (main branch): https://github.com/nodejs/node/actions/runs/22545396955

Testing

UNUSUAL="$HOME/dir with \$unusual\"chars?'åß∂ƒ©∆¬…\`"
mkdir -p "$UNUSUAL"
ln -sfn "$PWD" "$UNUSUAL/node"
cd "$UNUSUAL/node"

• ./tools/test.py -p actions parallel/test-debugger-restart-message
• ./tools/test.py -p actions -j1 --repeat 40 parallel/test-debugger-restart-message
• CI passes on macOS

Refs: #61762

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.04%. Comparing base (6916e64) to head (eb34825).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #62060      +/-   ##
==========================================
- Coverage   90.05%   90.04%   -0.02%     
==========================================
  Files         714      714              
  Lines      225242   225242              
  Branches    42579    42570       -9     
==========================================
- Hits       202843   202809      -34     
- Misses      14187    14203      +16     
- Partials     8212     8230      +18     

see 29 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[nodejs-github-bot]

Commit Queue failed

- Loading data for nodejs/node/pull/62060
✔  Done loading data for nodejs/node/pull/62060
----------------------------------- PR info ------------------------------------
Title      test: avoid initial-break wait in restart-message (#62060)
   ⚠  Could not retrieve the email or name of the PR author's from user's GitHub profile!
Branch     inoway46:fix-flaky-debugger-restart -> nodejs:main
Labels     test, needs-ci
Commits    1
 - test: avoid initial-break wait in restart-message
Committers 1
 - inoway46 <inoueyuya416@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/62060
Refs: https://github.com/nodejs/node/issues/61762
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
------------------------------ Generated metadata ------------------------------
PR-URL: https://github.com/nodejs/node/pull/62060
Refs: https://github.com/nodejs/node/issues/61762
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
--------------------------------------------------------------------------------
   ℹ  This PR was created on Sun, 01 Mar 2026 15:42:47 GMT
   ✔  Approvals: 1
   ✔  - Luigi Pinca (@lpinca): https://github.com/nodejs/node/pull/62060#pullrequestreview-3884836184
   ✔  Last GitHub CI successful
   ✘  No Jenkins CI runs detected
--------------------------------------------------------------------------------
   ✔  Aborted `git node land` session in /home/runner/work/node/node/.ncu

https://github.com/nodejs/node/actions/runs/23564673240

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/72337/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/72381/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/72424/

[inoway46]

Since the Windows flakiness seems better now, could you please rerun CI for this PR?

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/72620/

[inoway46]

Leaving this unchanged because this path has not shown the flake again since the fix two months ago.
ok may be the stronger sync point here too, but I’ll handle that in a separate PR after further investigation.

[inoway46]

@cola119 @lpinca
Sorry for the extra request, but could you please re-approve this PR? I force-pushed after the previous approval, and it looks like full CI needs a fresh approval before request-ci is picked up.

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/73317/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/73417/

[inoway46]

I just noticed that the commit is missing the DCO sign-off, so I’ll need to amend it and force-push. Unfortunately, this will invalidate the current CI run.

Sorry for the churn, and thank you for starting the CI.

cc @cola119

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/73422/