Those tests were enhanced with the addition of liblogging-stdlog
features. When compiled without it, most of the test will fail.
Skip those.
Signed-off-by: Louis Bouchard <louis.bouchard@canonical.com>
so far, all test required root privileges, which made testing
quite complicated and resulted in no testing of this module
on the testbench machines at all. Now we can also run without
root privileges.
To support the new tests, test tools were also improved.
