Test: add IT scenario for match condition on keyExtraction for advanced-ratelimit policy

[Saadha123]

Summary

• Adds an end-to-end BDD scenario to gateway/it/features/ratelimit.feature covering the new match condition on keyExtraction in the advanced-ratelimit policy (see Feat: add match condition to keyExtraction for conditional quota enforcement in ratelimit gateway-controllers#286).
• Verifies: a client ID matching the pattern (guest-*) is counted and throttled at the configured limit; a different matching client ID (exact match, channel-partner) gets its own independent bucket; a non-matching client ID bypasses the quota entirely and is never throttled.

Test plan

• Ran locally, scoped to this feature file: IT_FEATURE_PATHS=features/ratelimit.feature COMPOSE_FILE=docker-compose.test.yaml go test -v ./... — 43 scenarios / 577 steps, all passed, including the new scenario.

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ℹ️ Recent review info

⚙️ Run configuration

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Plan: Pro Plus

Run ID: 9167a24e-8e74-4557-af93-21a307a53138

📥 Commits

Reviewing files that changed from the base of the PR and between 5fed476 and 7b9ba7c.

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• gateway/it/features/ratelimit.feature

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📝 Walkthrough

Walkthrough

The integration test adds regex-based header key matching for rate limiting. It verifies separate quotas for guest-* and channel-partner, while internal-app-1 bypasses the quota.

Changes

Rate-limit matching

Layer / File(s)	Summary
Regex header rate-limit scenario gateway/it/features/ratelimit.feature	Adds coverage for regex-based matching of extracted header keys. Matching values receive independent three-request quotas. The non-matching internal-app-1 value remains unrestricted.

Estimated code review effort: 2 (Simple) | ~5 minutes

Merge Risk: ⚪ Minimal · up to 7b9ba

This change adds coverage for advanced rate-limit key matching, and the reported scoped test run passes; no actionable merge-blocking risk remains beyond normal checks and review.

Suggested reviewers: anugayan, arshardh, ashera96

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description explains the test purpose and reports successful execution, but it omits most required template sections, including Goals, Approach, User stories, Documentation, Automation tests detai…	Update the description to include all required template sections. Mark non-applicable sections with N/A and provide the required security confirmations, test coverage details, related issue or PR references, and test environment.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the addition of an integration test scenario for the match condition on keyExtraction in the advanced-ratelimit policy.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
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.

Full details: Description check

Explanation

The description explains the test purpose and reports successful execution, but it omits most required template sections, including Goals, Approach, User stories, Documentation, Automation tests details, Security checks, Samples, Related PRs, and Test environment.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

• Fix all pre-merge checks with AI

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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