What is TDD?

Introduction

Test-driven Domain (TDD) is a software development process in which tests are written for a piece of code before the code itself is written.

• This approach is designed to ensure that the code meets the requirements and works as intended
• TDD involves the following steps:
  • Writing a test for a feature
  • Running the test to see if it fails
  • Writing the code to implement the feature
  • Running the test again to ensure that it passes
• TDD is often used in agile software development as it allows for the rapid development of high-quality code.

What should and shouldn’t be tested?