This also moves the packages to be installed into a file that can be
shared between test methods.
It drops several packages that are unnecessary for testing, and excludes
those paths from pylint checks using pocketlint.
Related: rhbz#1785154
Related: rhbz#1653934
note: for now use Fedora 28 for the Docker container until
CentOS 8 is released or we figure out how to use subscriptions
for official RHEL 8 images.
these are built on top of beakerlib and we use its internal
protocol to figure out the result without relying on the full
test runner that is tipically used inside of a RHEL environment!
Includes a disabled test snippet for Issue #460
This tests to make sure that the metadata timer is working (by setting
it to 10s and adding a new package to the repo), and that
DNFLock.lock_check immediately picks up a new package.
This depends on rpmfluff which is available from Fedora or EPEL repos.
Related: rhbz#1631561
