test: Add comprehensive test suite for Chip component

[SherlockShemol]

🎯 What's this about?

Hey there! 👋 I noticed our Chip component was missing test coverage, so I spent some time writing a comprehensive test suite for it.

✨ What I did

I wrote 26 test cases that cover pretty much everything the Chip component does:

• Rendering tests: Making sure it shows up correctly with different values
• Props testing: All the different ways you can configure it (icons, styles, etc.)
• State management: Opening/closing the dropdown, selecting items
• Event handling: Clicks, selections, and that tricky clear button behavior
• Edge cases: Empty arrays, invalid values, rapid clicking, and numeric values

📊 Coverage

I'm happy to report we hit some solid numbers:

• ✅ 100% statement coverage
• ✅ 100% function coverage
• ✅ 100% line coverage
• ✅ 96.15% branch coverage (just one tiny edge case uncovered at line 56)

🛠️ Technical details

• Used semantic queries (role, getByText) instead of test IDs where possible for better accessibility testing
• Added proper TypeScript interfaces for all mocks (no more any types!)
• Created helper functions (renderChip, openPanel) to keep tests DRY
• Fixed a few tricky issues with querying duplicate elements using within()

✅ All checks passed

• ESLint: ✓
• TypeScript: ✓
• Unit tests: ✓ (26/26 passing)

Hope this helps improve our test coverage! Let me know if you'd like me to adjust anything. 😊

[gemini-code-assist[bot]]

Summary of Changes

Hello @SherlockShemol, I'm Gemini Code Assist[^1]! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces a brand new, comprehensive test suite for the Chip component. The primary goal is to ensure the component's reliability and correct functionality across a wide range of user interactions and data configurations, thereby enhancing its stability and maintainability within the application.

Highlights

• Comprehensive Test Suite Added: A new, extensive test suite has been introduced for the Chip component, significantly improving its test coverage and ensuring robust behavior.
• Extensive Test Coverage: The new suite includes 26 distinct test cases covering rendering, prop handling, state management (dropdown open/close), event handling (select, clear, rapid clicks), and various edge cases (empty arrays, non-matching values, numeric values, additional item properties).
• High Coverage Metrics Achieved: The tests achieve 100% statement, 100% function, and 100% line coverage, along with 96.15% branch coverage for the Chip component.
• Technical Best Practices: The test implementation utilizes semantic queries for accessibility, proper TypeScript interfaces for mocks, and helper functions to maintain DRY (Don't Repeat Yourself) principles. It also addresses issues with querying duplicate elements using within().

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