Add tests for block hint messages

[lawsie]

Summary

Adds tests for block hint messages

AI usage

Claude Opus 5 wrote the tests. I checked all of the tests by reading the code and thinking about the logic.

Summary by CodeRabbit

• Tests
  • Added comprehensive coverage for block hint behavior, including rendering, sanitization, empty states, enabling and disabling, remembered hints, clearing and hiding, message formatting, and mobile defaults.
  • Added the block hint suite to the test runner.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: e9fefbd5-d853-4a7e-bce1-44e20c25c60f

📥 Commits

Reviewing files that changed from the base of the PR and between a58fab7 and 356e763.

📒 Files selected for processing (2)

• tests/blockhint.test.js
• tests/tests.html

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📝 Walkthrough

Walkthrough

Changes

Block Hint Testing

Layer / File(s)	Summary
Block hint behavior coverage tests/blockhint.test.js	Adds tests for rendering, sanitization, empty input, enabled state, hiding, clearing, remembered hints, message formatting, escaping, and responsive defaults.
Test runner registration tests/tests.html	Adds the Block Hint Tests suite to the selectable test-suite definitions.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Mergeability Score: ⚪ Minimal · up to 356e7

This PR adds block hint message tests and updates the test runner; no actionable merge-blocking risk remains beyond normal checks and review.

Suggested reviewers: tracygardner

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: adding tests for block hint behavior and messages.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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