Freetype is a critical part of the Linux world. It's become fairly common for bodies of code to have a test suite. (I'm not proposing full testing right right now ;-)
I think the most critical issue is which testing environment would be best for FT.
CUnit, CppUnit, googletest, ...
Thoughts?
Brian
PS: I'm an old curmudgeon from long before the days of test driven development but I'm slowly beginning to understand the advantages. ;-)