Enhance test coverage for search tools and utilities

[Dan Hellem (danhellem)]

This pull request adds comprehensive tests for search tools and utility functions, improving coverage for various input scenarios, error handling, and request payloads. It also makes a minor code change to always provide a version descriptor in fetchCombinedResults.

Test coverage improvements:

• Added tests for the code search tool to verify correct request payloads, schema handling, and robust error handling for malformed results, API failures, and unsuccessful fetches. [1] [2] [3]
• Added tests for wiki and work item search tools to ensure proper filter payloads are sent and errors are reported when API calls fail. [1] [2]
• Improved DomainsManager.parseDomainsInput test coverage to handle whitespace-only strings and empty arrays as input.
• Enhanced utility function tests to verify getCliArgs uses process.argv by default and to check legacy URL handling in getOrgFromUrl. [1] [2]

Code logic update:

• Changed fetchCombinedResults to always provide a versionDescriptor object, even when changeId is not present, ensuring consistent API calls.

GitHub issue number

N/A

Associated Risks

None

✅ PR Checklist

• I have read the contribution guidelines
• I have read the code of conduct guidelines
• Title of the pull request is clear and informative.
• 👌 Code hygiene
• 🔭 Telemetry added, updated, or N/A
• 📄 Documentation added, updated, or N/A
• 🛡️ Automated tests added, or N/A

🧪 How did you test it?

Fixed and re-ran automated tests

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None