Correct. There are a few more forks of the impallari tester. Huerta Tipografia and Cyreal also have some script specific comparison tools, and James Puckett has posted some great InDesign test docs. … ((more))
IMHO, if a font license assets copyright adheres in the work, and grants permission to use the work that is asserted as withheld on the basis of that copyright, but does not grant permission to use t… ((more))
I've been commissioning better web font testing tools, in the github.com/googlefonts org there are a bunch of projects.
FontBakery is the main one, and wraps various others like OTS, HinTak Fontval… ((more))