I spend about 30% of my time on a new feature writing tests. BTW that is in RoR which the primary language I code in. I would recommend watching this video by S

I spend about 30% of my time on a new feature writing tests. BTW that is in RoR which the primary language I code in. I would recommend watching this video by Sandi Matz on testing: https://www.youtube.com/watch?v=URSWYvyc42M https://www.youtube.com/watch?v=URSWYvyc42M. I have used this methodology a lot to determine what I should test.