QA:Testcase Yum basics

Description

This test verifies basic yum functionality including searching, installing, updating, removing, and group functions.

How to test

1. Ensure you have yum installed with: rpm -q yum
2. Search for a package: yum search ksh
3. List a package: yum list ksh
4. Install an older package: rpm -e ksh; yum --disablerepo=updates install ksh
5. Upgrade a package: rpm -e ksh; yum update ksh
6. Remove a package: yum remove ksh
7. Group list: yum grouplist
8. Group install: yum groupinstall <some group>
9. Group remove: yum groupremove <some group>

Expected Results

1. All commands above should finish as expected. There should not be a traceback.