Increase code coverage
Increase code coverage

Cover also the test helper.

jloehel/zypper-docker,mssola/zypper-docker,mssola/zypper-docker,jloehel/zypper-docker,SUSE/zypper-docker,SUSE/zypper-docker,SUSE/zypper-docker,jloehel/zypper-docker,mssola/zypper-docker,mssola/zypper-docker