Test-Driven Development
Test-Driven Development (TDD) is a software development methodology where tests are written before implementation code, driving the design and ensuring correctness through a rapid feedback cycle.
Core Workflow:
- Write a failing test (red)
- Implement minimal code to pass the test (green)
- Refactor while maintaining passing tests
Modern Application: TDD with AI Agents Integrating tests directly into the codebase and enabling AI agents (like Claude Code) to execute them provides:
- Automated feedback loop for AI-generated code
- Continuous validation of correctness during development
- Reduced need for manual testing iterations
- Core workflow for AI coding agents: Leveraging TDD to drive agent-led implementation and verification
Key Benefits:
- Prevents over-engineering through minimal implementation
- Creates safety net for refactoring
- Documents requirements through executable tests
Related Concepts:
- Unit Testing
- AI Agent Development
- Code Refactoring
Backlinks:
- 2026 04 14 Claude Code workflow Yifan Beyond the Hype channel