Re:CUPID – the back story
by garethrowlands on Monday March 22, 2021 @05:27AM
(#26538502)
Honestly, I think "Working Effectively with Legacy Code" is the main work in this field.
If you can pair with someone who habitually works TDD, do so. Sounds like getting experience in a team with effective modern practices (see "Accelerate" by Forsgren et al) could change your life for the better.
My point being, do you have more references for studying about tests?! As a NodeJs and Python developer today (with almost no tests) it's really hard work with these legacy code :|