It was needed to provide assertItemsEqual method. Starting with Python
3.2, there's assertCountEqual that does the same thing. Six provides a
helper that will dispatch to the existing method. With this change,
unittest 2 is only needed on Python 2.6 to backport the method.
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
When gather_method is set to nodeps, we should not ignore the comps
group that the method received. Instead it should find out which
packages are in those groups and take them into the compose.
In order for this to be of any reasonable use, the comps file needs to
include all dependencies for the packages.
Fixes: #653
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
