If you were developing rails apps in the mid-late 2000s then you'd have known too many to count.
There was a period in time between 2005-2008 in Boston where if you didn't practice TDD you were persona non-grata.
I think interestingly enough, a good number of those people now have 10+ years experience programming and now understand what those of us who had 10 years experience at that point in time were trying to tell them.
The irony is that that attitude is something you see from rails people about anything that's currently fashionable in the rails world. And I think they picked it up from DHH himself. You didn't get the same kind of TDD zealotry among e.g. Django people.
There was a period in time between 2005-2008 in Boston where if you didn't practice TDD you were persona non-grata.
I think interestingly enough, a good number of those people now have 10+ years experience programming and now understand what those of us who had 10 years experience at that point in time were trying to tell them.