I think that's the bottom line. I've done virtually zero unit testing on a project before when there was barely time to write the core code. There wasn't much

I think that's the bottom line. I've done virtually zero unit testing on a project before when there was barely time to write the core code. There wasn't much business logic, lots of I/O and no user inputs or browsers to worry about and I was leading a small team of four so it was relatively well suited to it. Still, I was nervous as it was quite high profile and unit test coverage was about the only metric management knew to ask for. It was replacing a critical third party system being turned off on a fixed date and we barely made it. 6 months after being switched on in production we'd had zero bugs reported and I moved on. I'm confident in hindsight that I made the right call for the circumstances, but having it funded properly would have made me sweat a bit less.