Ludovic Courtès <ludo@gnu.org> writes:

> Christopher Baines <mail@cbaines.net> skribis:
>
>> I'm looking at this to help with adding support for looking up package
>> replacements to store in the Guix Data Service.
>>
>> * guix/inferior.scm (inferior-package-replacement): New procedure.
>
> Could you add a docstring and ideally a test?  (There might be
> complications for the test, let’s see how it goes.)

I've sent an update patch now.

Maybe the test should search out for a package without a replacement, as
well as a package with a replacement, so that it tests both cases, but I
just went with a simpler approach for now.