Fix array to string conversion warning in Request::getSize()

[ChiragAgg5k]

Summary

• Fixes "Array to string conversion" warning in Request::getSize() method when headers contain array values
• After recent changes allowing array headers, the getSize() method needs to handle both string and array header values
• Properly formats array headers as comma-separated values (standard HTTP format) before calculating request size

Changes

• Updated Request::getSize() to handle array header values correctly
• Added test case testCanGetSizeWithArrayHeaders() to verify the fix

Test plan

• Added new test case for array headers
• All existing RequestTest tests pass (26/26)
• Verified no array to string conversion warning occurs

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix-array-header-size-calculation

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}