[CentralOH] TDD at PyOhio

[jep200404 at columbus.rr.com]

There was a discussion at PyOhio about Test Driven Development 
(TDD) that I need to review. 

Who and which presentation(s)? 

I'm grasping at vague recollections. 
There was a discussion about TDD during PyOhio that mentioned the 
need to have tests run in under a second, otherwise developers 
won't run the tests often enough for the tests to be of benefit. 
There was also talk about how some tests were very cumbersome, 
setting up test data in databases. I think there was some 
discussion of how to avoid that cumbersomeness. Maybe it got into 
talking about how to program to interfaces. I don't think it was 
the main focus of a presentation, then again, maybe it was during 
the main part of a presentation. It might have cropped up during 
Q&A, then again, maybe not. It might have been a few minutes of 
one presentation, or I might be thinking of part from more than 
one presentation.