Pro's and Con's of unit testing after the fact.
- by scope-creep
I have a largish complex app around 27k lines. Its essentially a rule drive multithreaded processing engine, without giving too much away Its been partially tested as it's been built, certain components.
Question I have, is what is the pro's and con's of doing unit testing on after the fact, so to speak, after its been implemented. It is clear…