How to unit-test a phobos module?

[Paul Backus]

On Wednesday, 25 November 2020 at 20:58:20 UTC, Q. Schroll wrote:
> My setup:
> * A fresh DMD installed a few minutes ago.
> * Clone of my Phobos fork with up-to-date changes from 
> dlang/phobos/master.

Do you have clones of dmd and druntime too? If not, try following 
these instructions:

https://wiki.dlang.org/Starting_as_a_Contributor#Typical_Contributor_Workflow