Logs of Duty: Legacy code
When questioning every life choice that led you here
Rule #1: Identify the untouched areas. If nobody updates a critical file for two years, be worried. You know it is a danger zone to keep in view.
Rule #2: Pray before every commit. The previous engineer had to deliver this feature ASAP, and tests were not the priority. Deal with it. And not by skipping tests as well!
Rule #3: Understand before coding. Dri…