As I understand it, the idea is just to make an Arabic test suite with enough examples (maybe a few dozen to a few hundred) such that if your program correctly

As I understand it, the idea is just to make an Arabic test suite with enough examples (maybe a few dozen to a few hundred) such that if your program correctly renders all those examples, it’ll probably work fine with most Arabic text found in the wild. It sounds like there’s a lot of very broken software out there. Testing any Arabic input would be a big improvement for a lot of software.