Testing Guide

Quality Through Testing

Testing is not just about finding bugs—it's about building confidence in our code and ensuring reliable government services for all users.

Testing Philosophy

Test Pyramid

• Unit tests (base)
• Integration tests (middle)
• End-to-end tests (top)
• Manual testing (cap)

Test-Driven Development

• Write tests first
• Red-green-refactor
• Small iterations
• Continuous feedback

Types of Testing

1. Unit Testing

   • Individual components
   • Isolated tests
   • Mock dependencies
   • Fast execution

2. Integration Testing

   • Component interaction
   • Service integration
   • Database testing
   • API testing

3. End-to-End Testing

   • User workflows
   • System integration
   • Browser testing
   • Performance testing

💡 Testing Tip

Focus on testing behavior, not implementation. Your tests should verify what your code does, not how it does it.

Testing Tools

Test Runners

• Jest
• Mocha
• Cypress
• Selenium

Assertion Libraries

• Chai
• Jest matchers
• Testing Library
• Enzyme

Best Practices

Testing Excellence

• Write maintainable tests
• Use test fixtures
• Follow arrange-act-assert
• Test edge cases
• Regular test maintenance