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“If you're happy slamming some code together that more or less works and you're happy never looking at the result again, TDD is not for you. TDD rests on a charmingly naïve geekoid assumption that if you write better code, you'll be more successful. TDD helps you to pay attention to the right issues at the right time so you can make your designs cleaner, you can refine your designs as you learn.”
― Kent Beck, Test-Driven Development: By Example