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Why we picked it A free summary of the classic legacy-code book, distilling the ideas your reviewer will use, above all that code without tests is hard to change safely. It makes the book's core lesson accessible without reading 450 pages. Good for understanding why 'are there tests?' keeps coming up.
The Key Points of Working Effectively with Legacy Code
From Understand Legacy Code by Nicolas Carlo 12 min read
- Code without tests is, by definition, legacy code
- Safe change requires a test safety net first
- Small dependency-breaking steps beat a rewrite
