🧪 [testing improvement] Add edge case tests for joinUrls

[sunnylqm]

🎯 What: The testing gap addressed: Missing edge case tests for joinUrls utility function. Added edge cases such as empty string paths, trimming multiple trailing slashes, preserving custom protocols (ftp://, myapp://), and properly prepending https:// to IP addresses (with ports).
📊 Coverage: What scenarios are now tested: Empty string path arrays, URLs containing multiple trailing slashes (e.g., example.com///), IP addresses with ports, and URLs with non-HTTP custom protocols.
✨ Result: The improvement in test coverage: Improved confidence in joinUrls string-parsing resilience and overall regression prevention.

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PR created automatically by Jules for task 6270451404118664751 started by @sunnylqm

Summary by CodeRabbit

• Tests
  • Expanded test coverage for URL joining functionality with additional edge cases, including empty path elements, excessive trailing slash trimming, custom URL scheme preservation, and IP address with port handling.

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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: 066f978a-390f-4a32-b0c8-b4357b7ffd75

📥 Commits

Reviewing files that changed from the base of the PR and between 9317f66 and b86c7f9.

📒 Files selected for processing (1)

• src/__tests__/utils.test.ts

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📝 Walkthrough

Walkthrough

This PR adds 25 new test cases to the joinUrls utility test suite, covering edge cases including empty string path elements, excessive trailing slashes, custom URL schemes (non-HTTP), IP addresses with ports, and preservation of existing path segments.

Changes

Cohort / File(s)	Summary
URL Joining Test Cases src/__tests__/utils.test.ts	Added comprehensive test coverage for joinUrls utility including empty paths, trailing slash normalization, custom schemes (ftp, myapp), IP addresses with ports, and path segment handling.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• PR #521: Also modifies src/__tests__/utils.test.ts to add unit tests for the joinUrls utility with overlapping test case coverage.

Poem

🐰 Hoppy hops through test arrays so neat,
Schemes and slashes, a URL treat!
From ftp burrows to custom URLs wide,
Edge cases tested with bunny-sized pride! 🥕

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title describes adding edge case tests for joinUrls, which aligns with the main change of adding new test cases in src/tests/utils.test.ts.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ 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 jules-test-joinUrls-edge-cases-6270451404118664751

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