Describe the principles of Test-Driven Development (TDD) and its benefits

Describe the principles of Test-Driven Development (TDD) and its benefits.

Hey Mark

Test-Driven Development (TDD) is a methodology that involves writing tests before implementing the actual code, promoting better code quality, improved design, and easier maintenance. Its principles include:

  1. Write a failing test: Start with a test for the desired function.
  2. Implement code: Create code to pass the test.
  3. Refactor: Optimize the code while ensuring tests still pass.

Benefits:

  • Improved Code Quality: Encourages simpler and cleaner code.
  • Confidence in Refactoring: Safeguard against regressions.
  • Clearer Requirements: Tests act as documentation, clarifying intended behaviors.