Any tutorials on Unit testing in CI4?

Anyone tried this : https://pestphp.com/docs/installation

CMS CI4 A CMS system, runs out of the box written on top of CI4

Arch Book  CodeIgniter4 on Apache(pages 92-114) 

CI4-CMS Github  

It seems the answer is no, there are no CodeIgniter 4 specific tutorials on unit testing, at least not in English. As noted, there is ample documentation on phpunit itself, so I think it's best to avoid using CodeIgniter's proprietary implementation of it because the cursory documentation will make testing seem more difficult than it really is. I would steer clear until and unless the situation improves.