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TDD vs BDD: Your Pocket Cheat-Sheet
- TDD (Test Driven Development) and BDD (Behavior Driven Development) are two widely used software development techniques where automated tests are key.
- TDD focuses on writing tests before production code, aiming for simpler, maintainable design through isolated unit testing.
- TDD workflow consists of writing a failing test, executing existing tests, writing production code to pass the test, and optional refactoring.
- TDD comes in different styles like inside-out TDD and outside-in TDD, each with its benefits and drawbacks.
- Unit tests in TDD ensure speed, determinism, and minimal dependencies for efficient and effective testing.
- BDD (Behavior Driven Development) is an extension of TDD, focusing on behavior over tests, promoting collaboration, and communication within teams.
- BDD workflow involves writing behaviors in plain English, converting them into scripts, implementing functionality, and optional refactoring.
- TDD and BDD are not testing methodologies; they are software development techniques leveraging automated testing for benefits like simpler design and fewer defects.
- The main differences between TDD and BDD lie in the starting point (test vs. behavior), collaboration scope, and end-user vs. developer focus.
- The choice between TDD and BDD depends on the nature of the application, with BDD suiting behavior-driven apps and TDD more fitting for libraries or APIs.
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