Options for unit testing in D?

[Mike Brockus]

If you never herd about Meson before:
🤔. https://mesonbuild.com/

I am wondering as to what options are available for a Meson build 
user when unit testing?

What I am trying todo is simply rewrite my C17 project reference 
templates to D versions so I may show other developers the basic 
structure of my project if I have a question about something or 
to influence the idea of Meson with D projects.  Excuse the Conan 
file.

As reference:
C17
https://github.com/squidfarts/c-example.git
https://github.com/squidfarts/c-project.git

Dlang
https://github.com/squidfarts/d-example.git
<working on project version>