agile_otter on Nostr: Yes, legacy code is hard. Cecil says: "Before making changes to the legacy code, I ...

Yes, legacy code is hard.

Cecil says: "Before making changes to the legacy code, I will write characterization tests to provide a safe way to proceed. Doing so gives me a way to get rapid feedback should I unintentionally alter the existing behavior. "https://www.industriallogic.com/blog/characterization-testing-in-nuclear-power-and-software/