What is BDD/TDD?

BDD (Behavior-Driven Development) is a software development process that evolved from TDD (Test-Driven Development). BDD focuses on defining the behavior of the system from the perspective of the user or stakeholder, using a common language that both developers and non-technical people can understand. It uses examples, written in a specific format (e.g., Given-When-Then), to describe expected behavior. TDD is a software development process where tests are written before the code. The development cycle is repeated (Red-Green-Refactor), starting with writing a failing test (Red), then writing the minimal code to pass the test (Green), and finally refactoring the code to improve its design (Refactor). Both BDD and TDD aim to improve code quality, reduce bugs, and ensure that the software meets the requirements.