bug#38528: Add test for `guix pull'

[Ludovic Courtès]

Hi,

Pierre Neidhardt <address@hidden> skribis:

> The current way to do it is to run
>
>   guix pull --url=/path/to/checkout --profile=/tmp/guix.master

“make as-derivation” achieves more or less the same.

Now, as you know, this can be CPU-intensive, so I’m afraid we cannot
have “make check” do that systematically.

Thanks,
Ludo’.