_get_package_information Distro inconsistency

[mcgov]

_get_package_information in the lisa.operating_system Debian class will return package info even if a package is not installed. We use apt show which will show package info for packages which are in the db but not neccesarily installed yet.

For Fedora we use rpm -q which will only show packages which have been installed already. The equivalent of apt show for Fedora would be yum info or dnf info, and if you only want info for installed packages it would be yum/dnf info --installed

I'm not sure who has taken a dependency on the current behavior of this function, does anyone care if I fix RpmDistro or Fedora to show package info for available packages instead of installed packages?

[trungams]

In e3622c7 I've updated Debian to use dpkg-query and RPMDistro to use rpm to query version info from installed packages. Maybe this issue can be resolved by now..?