Hmmm, I wonder if the group will be accepting of yet-another-virttest module (we already have too many as it is).  Consider if the contents here can fit somewhere existing, for example ``utils_net`` and/or ``utils_test".  Then again, if these are all functions you think only your virsh_iface_list test will use, it's okay to just toss 'em right into the test-module. We can always separate them out later if another test needs one or more.