A question that comes up every once in a while is: can we use Test Driven Development (TDD) on existing code? And if not, is TDD useful on existing code? And since most developers work with already existing code, is TDD useful at all?
Alex answers this question. tl;dr: you can't use TDD "by the book" on existing code that doesn't have testable design, but that just means you need to use a different set of methods to get it testable first. Learn more about 3 methods in this video.
Alex Bolboaca is a programmer, CTO, author, trainer and coach at Mozaic Works.
Mozaic Works provides high quality, customized training, coaching, and advice for companies who want to improve their effectiveness in the market, mainly through the use of modern leadership and technical practices. Check out our offer and ask us questions at [ Ссылка ].
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