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Use the Mikado Method to do safe changes in a complex codebase - Change Messy Software Without Breaking It
(understandlegacycode.com)
this post was submitted on 25 Feb 2026
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Programming
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That was such a huge problem on my last job. Most of the unit tests just executed the code and didn’t really test anything and any time you changed the implementation everything broke.
Thankfully it was truly my last job. 😊