I was in the industry from early 2000 to early 2010. It was only towards the end that Unit Testing was a thing. At the start we didn't even do code reviews or

I was in the industry from early 2000 to early 2010. It was only towards the end that Unit Testing was a thing. At the start we didn't even do code reviews or use a sensible source-control system. Yeah it was a painful experience, but I survived.