bug#38528: Add test for `guix pull'

[Ludovic Courtès]

Hi Pierre,

Pierre Neidhardt <address@hidden> skribis:

> It works now, however it does not detect breakages like "guix pull -p
> ..." does.

Do you have a specific example in mind?  They normally build the exact
same thing.

All that said, I think it’s fine to recommend “guix pull -p” in the
manual, but I just wanted to make sure people know about “make
as-derivation”, which can be slightly more convenient in cases where you
don’t want to commit the change to test it.

Thanks,
Ludo’.