Test Driven Development by Kent Beck

By Example

This book presents a practical approach to software development that emphasizes writing small automated tests before production code and using a tight red–green–refactor cycle to drive design and implementation; through concrete examples it shows how test-first development yields faster feedback, cleaner designs, fewer defects, easier refactoring, and living documentation of requirements, while illustrating techniques for unit testing, incremental design, and keeping code simple and maintainable.

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