Increase Test Coverage to 100% for Patient Components

📝 Description

We need to improve unit test coverage to 100% for the following components:

• PatientCard.tsx
• PatientStatusTracker.tsx
• QueueDisplay.tsx

Currently, these components have partial coverage, and some branches, edge cases, and conditional paths are not fully tested.

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🎯 Objective

Achieve 100% test coverage (Statements, Branches, Functions, and Lines) for the above components.

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✅ Tasks

• Analyze current coverage report (npm run test:coverage)
• Identify uncovered lines, branches, and edge cases
• Write additional test cases for:
  • Conditional rendering
  • Edge cases (empty data, null/undefined props)
  • User interactions (clicks, status changes, etc.)
  • API/mock data handling (if applicable)
• Ensure all tests pass successfully
• Verify coverage reaches 100% for each file

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🧪 Acceptance Criteria

• Coverage for:

  • PatientCard.tsx → 100%
  • PatientStatusTracker.tsx → 100%
  • QueueDisplay.tsx → 100%

• No failing test cases

• Code follows existing testing standards (Jest + React Testing Library)