[tmckayus]

file_result_message omits empty lists, but GET /cuopt/solution clients expect warnings and notes keys when the body is a result_file stub. Return the empty values so that the result structure maintains parity with the legacy http server.

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📝 Walkthrough

Walkthrough

For file-backed solution responses, getsolution now adds default warnings and notes fields when they are absent. A proxy test checks the response metadata and confirms that the result file exists.

Changes

File-backed solution response

Layer / File(s)	Summary
Response metadata and result-file test python/cuopt_server/cuopt_server/proxy_webserver.py, python/cuopt_server/cuopt_server/tests/test_grpc_http_proxy.py	getsolution defaults missing warnings and notes fields while preserving existing fields. The test checks the result response status, filename, warnings, notes, and output-file existence.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: 🔵 Low · up to 3b279

If the proxy stalls, the new test can hang the test run; finite timeouts would bound this localized risk.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 5 functions across 2 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the main change: including warnings and notes in result-file stubs.
Description check	✅ Passed	The description explains the missing response keys and the compatibility goal for GET /cuopt/solution clients.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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Inline comments:
In `@python/cuopt_server/cuopt_server/tests/test_grpc_http_proxy.py`:
- Around line 452-463: Add bounded timeouts to both the requests.post and
requests.get calls in the test so they cannot wait indefinitely; preserve their
existing URLs, headers, payload, and response handling.

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📥 Commits

Reviewing files that changed from the base of the PR and between 7b08aad and 3b27999.

📒 Files selected for processing (2)

• python/cuopt_server/cuopt_server/proxy_webserver.py
• python/cuopt_server/cuopt_server/tests/test_grpc_http_proxy.py

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[ramakrishnap-nv]

Confirmed the bug directly in local_files.py -- file_result_message() only adds warnings/notes keys under a truthy check, so an empty list is silently dropped rather than serialized as [], breaking clients that expect those keys always present on a result-file stub. The .setdefault() fix is the right call -- only fills the key when absent, so real (truthy) values from file_result_message() are left untouched.

Test cleverly forces the stub path (monkeypatches get_result_dir with maxresult=0 so any result qualifies) and checks both directions: an empty list that was being dropped, and a real non-empty notes value to confirm the backfill doesn't clobber genuine data. Small, correctly scoped, well tested.

[github-actions]

CI Test Summary

✅ All 23 test job(s) passed. (1 skipped)

[tmckayus]

/merge