PragDave: Test-First Word Wrap in Erlang

I'm continuing to play with Erlang. This week, I needed to write some code that extracts information from a bunch of source files. Part of the output was supposed to be a list of strings, nicely word wrapped to fit on a terminal screen. I decided to experiment with using a test-first approach to developing the word wrap function. I wrote unit tests that describe the functionality I want, and then