Add cacheSingleOpenCourseData helper and tests; use it in batch fetch

[ntornberg]

Motivation

• Reduce duplicated cache-write logic for open course entries and ensure consistent cache key usage across code paths.
• Make cache writes for single open-course entries reusable and robust to missing hash keys.

Description

• Added a new helper cacheSingleOpenCourseData in src/course-management/services/api/DialogMenuSearch/dataService.ts that writes a single course into the openCourses cache and updates the in-memory openCoursesCache, while warning and returning early when the hash key is missing.
• Replaced inline cache-write logic inside batchFetchCoursesData with calls to cacheSingleOpenCourseData to centralize behavior and remove duplication.
• Added unit tests in src/course-management/services/api/DialogMenuSearch/dataService.test.ts that include a chrome storage mock and validate both successful cache writes and the skip behavior when a hash key is missing.

Testing

• Executed the new unit tests with node --test src/course-management/services/api/DialogMenuSearch/dataService.test.ts, and both tests passed.
• The tests verify that getGenericCache returns the stored combinedData matching the JSON-serialized course and that missing hash keys produce no cache writes.

---

Codex Task

[coderabbitai]

Warning

Rate limit exceeded

@ntornberg has exceeded the limit for the number of commits that can be reviewed per hour. Please wait 7 minutes and 27 seconds before requesting another review.

⌛ How to resolve this issue?

After the wait time has elapsed, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

We recommend that you space out your commits to avoid hitting the rate limit.

🚦 How do rate limits work?

CodeRabbit enforces hourly rate limits for each developer per organization.

Our paid plans have higher rate limits than the trial, open-source and free plans. In all cases, we re-allow further reviews after a brief timeout.

Please see our FAQ for further information.

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 15c97eb5-6827-4ef3-90ee-c6466f6801bd

📥 Commits

Reviewing files that changed from the base of the PR and between 8b9423f and 4d4ea37.

📒 Files selected for processing (2)

• src/course-management/services/api/DialogMenuSearch/dataService.test.ts
• src/course-management/services/api/DialogMenuSearch/dataService.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch update-batchfetchcoursesdata-implementation-zsydqu

---

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.}