We have a number of negative tests, but we don't have systematic
positive coverage.  Fix that.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Message-Id: <1490015515-25851-6-git-send-email-armbru@redhat.com>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>