QA:Testcase YumPresto createrepo

Description

Users should be able to create delta-rpms enabled repositories.

How to test

1. Download createrepo + some old package, for example sos
   1. rpm -Uvh http://kojipkgs.fedoraproject.org/packages/createrepo/0.9.7/4.fc11/noarch/createrepo-0.9.7-4.fc11.noarch.rpm
   2. rpm -Uvh http://kojipkgs.fedoraproject.org/packages/sos/1.8/9.fc11/noarch/sos-1.8-9.fc11.noarch.rpm --oldpackage
   3. yum install httpd
2. Create your own repo
   1. mkdir /var/www/html/myold /var/www/html/mynew
   2. cd /var/www/html/myold
   3. wget http://kojipkgs.fedoraproject.org/packages/sos/1.8/9.fc11/noarch/sos-1.8-9.fc11.noarch.rpm
   4. cd /var/www/html/mynew
   5. wget http://kojipkgs.fedoraproject.org/packages/sos/1.8/10.fc11/noarch/sos-1.8-10.fc11.noarch.rpm
   6. createrepo --database --deltas --oldpackagedirs=/var/www/html/myold/ /var/www/html/mynew/
3. Start http server with service httpd start
4. Connect to your repo (you have to use http server, it could not be file://) with this repofile in /ets/yum.repos.d/myrepo.repo

 [myrepo]
 name=myrepo
 baseurl=http://localhost/Packages/
 enable=1
 gpgcheck=0

1. Test if everything works
   1. yum clean metadata
   2. yum clean all
   3. yum update sos --enablerepo=myrepo

Expected Results

All commands above should finish as expected. When you are running final yum, yum should download *.drpm instead of *.rpm file.