test-driven-development - Test-Driven Development
test-driven-development
Test-Driven Development
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Description
Development methodology of writing tests before implementing code, producing more reliable and maintainable software
Use Cases
- Test planning before new feature development
- Ensuring behavior doesn’t change during refactoring
- Writing reproduction tests before bug fixes
- Improving code coverage and quality
- Standardizing team code review
Core Capabilities
- Test First: Define expected behavior before implementation
- Red-Green-Refactor: Follow the TDD cycle
- Edge Coverage: Identify and test boundary cases
- Testable Design: Write code structures that are easy to test
Example
I need to implement a user registration feature with requirements:- Username 3-20 characters- Valid email format- Password at least 8 characters with numbers and letters
Please help me write test cases first, then implement the feature.Notes
- Tests should be independent and repeatable
- Avoid testing implementation details, test behavior
- Keep tests simple and readable
Applicable Roles
Developer DevOps/IT