I don't know how many people use unit-threaded (https://github.com/atilaneves/unit-threaded) for their tests, and of those how many use Arch Linux, but for anyone else there for who that applies, I added a dtest (https://github.com/atilaneves/dtest) package to the AUR:
https://aur.archlinux.org/packages/dtest/ I also did it to learn how to create Arch packages. Atila