feat(tooling): add unit tests

[riteshfyi]

COMPLETES #https://jira-eng-gpk2.cisco.com/jira/browse/SPARK-772626

This pull request addresses

Adds unit tests for our meetings widget repo

by making the following changes

wrote UTs

Change Type

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Tooling change
• Internal code refactor

The following scenarios were tested

• The testing is done with the amplify link
  < ENUMERATE TESTS PERFORMED, WHETHER MANUAL OR AUTOMATED >

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• Code was generated entirely by GAI
• GAI was used to create a draft that was subsequently customized or modified
• Coder created a draft manually that was non-substantively modified by GAI (e.g., refactoring was performed by GAI on manually written code)
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• This PR is related to
  • Feature
  • Defect fix
  • Tech Debt
  • Automation

Checklist before merging

• I have not skipped any automated checks
• All existing and new tests passed
• I have updated the testing document
• I have tested the functionality with amplify link

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[Shreyas281299]

🔴 High Severity - Test isolation leak

This test overrides document.activeElement using Object.defineProperty but never restores the original value in cleanup. This leaks across tests and can cause unpredictable behavior in subsequent tests.

Impact: Flaky tests, hard-to-debug failures in other test suites.

Suggestion: Save the original property descriptor before overriding and restore it in afterEach or at the end of this test:

const originalDescriptor = Object.getOwnPropertyDescriptor(document, 'activeElement');
// ... test code ...
Object.defineProperty(document, 'activeElement', originalDescriptor);

[riteshfyi]

adressed

[Shreyas281299]

Review Summary

Found 4 high-severity test isolation issues that need to be fixed:

1. Line 285 & 318: overrides not restored - leaks across tests
2. Line 429 & 472: overrides not restored on error - causes flaky tests
3. Line 5: Module-scoped shared across tests without reset

Additionally, there's an optional suggestion at line 233 about refactoring the accessibility tests for better resilience.

Please address the high-severity isolation issues to prevent flaky test behavior.

[Shreyas281299]

Review Summary: Found 4 high-severity test isolation issues that need to be fixed. Lines 285 and 318: activeElement overrides not restored. Lines 429 and 472: MutationObserver overrides not restored on error. Line 5: Module-scoped state shared across tests. Please address these isolation issues to prevent flaky tests.

[riteshfyi]

Comments Addressed