TDD (Test-Driven Development)

Test-Driven Development (TDD) is a software development approach where tests for a program are written before the actual code. It follows a simple cycle: first, you write a test for a small piece of functionality; then, you write the minimum amount of code necessary to pass that test. Finally, you refactor the code to improve it while ensuring all tests still pass. This method helps developers catch errors early, maintain high code quality, and create software that meets requirements more reliably. Essentially, TDD promotes a disciplined, iterative process that leads to better, more reliable software.