I'll first make Python 2 and 3 both generate same output for tests with MockFont, then will probably hardcode glyphorder and remove MockFont completely and remove hacks I added to make tests work with MockFont.
The *.txt data in this directory was imported from: https://github.com/Monotype/OpenType_Table_Source/tree/gh-pages/downloads at the following revision: 8a4db481c63efe468092d7e9cd149d2e9786369a plus fixes for the following issues: https://github.com/Monotype/OpenType_Table_Source/issues/11