Overview
TDD follows a short, repetitive cycle often called 'Red-Green-Refactor'. It ensures that the code is testable and meets the requirements from the start.
The Cycle
- Red: Write a test for a small bit of functionality and watch it fail.
- Green: Write the simplest code possible to make the test pass.
- Refactor: Clean up the code while ensuring the test still passes.
Benefits
- High test coverage.
- Better software design.
- Reduced bug count in production.