Test coverage assign doctor page

Overview

This MR adds comprehensive unit and integration test cases for the AssignDoctorPage to significantly increase its test coverage. It ensures that all critical user interactions, API calls, and UI states are properly validated, improving reliability and reducing the risk of regressions.

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What does this MR do and why?

The AssignDoctorPage previously had little to no test coverage, leaving important workflows like doctor assignment, validation, and error handling untested.

This MR addresses the gap by:

• Adding test cases for all major user flows
• Covering success, failure, validation, and loading states
• Ensuring API interactions are properly mocked and verified

Motivation:

• Improve code reliability and maintainability
• Prevent regressions in critical assignment workflow
• Increase confidence in future changes

Approach:

• Used Jest and React Testing Library
• Focused on behavior-driven testing rather than implementation details
• Mocked API calls and external dependencies

Trade-offs:

• Mocked APIs may not fully replicate real backend behavior
• Increased test suite size slightly impacts execution time

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Changes Made

• Added new test cases to file:

• `tests/unit/components/AssignDoctorPage.test.tsx

• Added test cases for:

  • Component rendering
  • Form interactions
  • API success and failure scenarios
  • Validation errors
  • Loading states

• Improved overall test coverage for AssignDoctorPage.tsx

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Technical Details

• Root Cause:

  • Missing test coverage for critical UI component
  • Lack of validation for edge cases and API failure scenarios

• Solution:

  • Implemented comprehensive test suite using React Testing Library
  • Mocked API calls using Jest
  • Verified UI updates based on different states (success, error, loading)

• Component Behavior Covered:

  • Initial render state
  • User input handling
  • Form submission logic
  • API integration flow
  • Conditional rendering based on state

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Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 📝 Documentation update
• 🎨 UI/UX improvement
• ♻️ Refactor (no functional changes)
• ⚡ Performance improvement
• 🧪 Test update
• 🔧 Configuration change
• 🚨 Security fix

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Related Issues / References

• Closes #242 (closed)

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Screenshots of test coverage:

How to Set Up and Validate Locally

1. Pull this branch:

   git checkout test-coverage-assign-doctor-page
   

2. Install dependencies (if any changed):

   npm install

3. Update environment variables (if needed):

   # .env
   

4. Run development server:

   npm run test:coverage

Testing Done

Describe the testing performed:

• Manual testing completed
• Unit tests added/updated

Test Cases Covered:

Scenario	Expected Result	Status
Component renders correctly	UI loads without errors	✅
Successful doctor assignment	API called + success message shown	✅
API failure handling	Error message displayed	✅
Validation errors	Required field errors shown	✅
Loading state	Loader displayed during API call	✅

Code Quality Checklist

Code Standards

• Code follows project conventions (naming, structure, formatting)
• No console.log() or debugger statements left in code
• No unused imports, variables, or functions
• No duplicate code and use of existing components for reusability
• i18n check passed with no hardcoded strings in codebase for i18n support
• TypeScript types are properly defined (no any unless justified)
• ESLint and Prettier checks pass

  bun run lint

React Best Practices

• Components are properly split and single-responsibility
• Hooks follow rules (no conditional hooks, proper dependencies)
• State management is appropriate (local vs global state)
• No unnecessary re-renders (memoization used where needed)
• Event handlers are properly cleaned up

Component Patterns

• shadcn/ui components used correctly
• Tailwind classes follow utility-first approach
• Responsive design considered (mobile-first if applicable)
• Accessibility attributes included (aria-*, role, etc.)
• Icons from lucide-react used consistently

API & Data Fetching

• TanStack Query used for server state (if applicable)
• Loading and error states handled
• API types defined in src/types/api.ts
• Axios interceptors handle auth tokens correctly
• Use of Zod for data validations

Error Handling

• Errors are caught and handled gracefully
• User-friendly error messages displayed
• Errors are being toasted properly
• Network failures handled appropriately

Documentation

• README.md updated (if setup steps changed)
• .env.example updated (if new env vars added)
• CHANGELOG.md updated (if applicable)

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