Refactoring tests for AptitudeRole
Covering AptitudeRole.provision
Covering AptitudeRole.ensure_gpg_key
Covering AptitudeRole.has_source
Covering AptitudeRole.ensure_aptitude_source
Covering AptitudeRole.update_date_file
Covering AptitudeRole.store_update_date
Covering AptitudeRole.get_last_update_date
Covering AptitudeRole.ensure_up_to_date
Covering AptitudeRole.force_update
Covering AptitudeRole.ensure_package_installed