>> There are two cases:
>>
>> 1. A generation does not exist.
>>
>> 2. The profile points to the zeroth generation, and there are no other
>>    generations.
>>
>> ‘tests/guix-package.sh’ tests the first case.  Should we test the second
>> case too?  What would be the best way to do so?

> The second case is valid.  Thus it’s OK for --list-generations to not
> print anything, but it must exit with 0.

> Likewise, --delete-generations should do nothing and exit with 0 with
> the only generation that would be deleted is Generation 0.

> Does it make sense?

I was asking a different question, that is, whether we should test both
cases in ‘tests/guix-package.sh’ or it’s OK to test only the first case.
Currently, there’s a test for the first case.  (Note that by the word
“cases” I mean the ‘cond’ cases.)

Anyway, can I push this patch?