Summary:
this uses a couple of test repos with fake packages to test the
basic dnf mechanisms are working, then messes around with the
python3-kickstart package a bit to try and test the default repo
configuration is working, keys are in place and so on. We use
python3-kickstart because we should be able to rely on the copy
of that package in the 'stable' repo being installable (or else
the compose would have failed), but it shouldn't be vital to
the operation of the system.
Test Plan: Run the test, see if it works.
Reviewers: jskladan, garretraziel
Reviewed By: garretraziel
Subscribers: tflink
Differential Revision: https://phab.qadevel.cloud.fedoraproject.org/D1006
