tests: runtime: Use more concrete matchers for assertions

[cosmo0920]

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Summary by CodeRabbit

• Tests
  • Improved TCP JSON/msgpack output validation to support deferred “expected substring” checks, including optional JSON-array structure requirements.
  • Added post-validation to ensure every expected output fragment was observed after flushing.
  • Corrected negative-integer string comparison behavior to match parsed signed values more accurately.
  • Refined one JSON output expectation by splitting it into multiple fragments for more reliable matching.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 8ccff5f9-02e0-4c38-b90d-a295894ff1ba

📥 Commits

Reviewing files that changed from the base of the PR and between 004a3de and 6ab83c1.

📒 Files selected for processing (1)

• tests/runtime/out_tcp.c

🚧 Files skipped from review as they are similar to previous changes (1)

• tests/runtime/out_tcp.c

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📝 Walkthrough

Walkthrough

tests/runtime/out_tcp.c adds deferred match tracking to str_list, validates JSON-array payloads, fixes negative integer comparison in msgpack_strncmp, and updates flb_test_format_json to check two JSON fragments after flushing.

Changes

TCP Output Test Match Tracking

Layer / File(s)	Summary
str_list match tracking infrastructure tests/runtime/out_tcp.c	Adds deferred match fields and JSON-array validation helpers to str_list, updates cb_check_str_list to record matches, and adds check_str_list_matches() for later completeness checks.
msgpack negative integer comparison tests/runtime/out_tcp.c	msgpack_strncmp compares parsed negative values directly against obj.via.i64.
format_json expectation update tests/runtime/out_tcp.c	Splits the expected JSON into two fragments, wires in matches[] plus JSON-array flags, and validates that both fragments were observed after flush.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐇 Hop, hop, the tests align,
Two JSON bits now match in line.
A rabbit checks each count with care,
And negative numbers compare fair.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 20.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the test-suite change toward more concrete assertion matching in runtime tests.
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.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch cosmo0920-plug-duplicated-result-on-out_tcp-test

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[chatgpt-codex-connector]

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