Create test group in Default domain

When enabling multidomains with miltibackends keystone
returns groups only for domain specified in token.
Since modules doesn't allow to specify domain_id
when searching groups (new identity with test domain might
be used, but we don't want to change deployment by test,)
environment

Change-Id: If981c1645c846a1de981234d7a36f8162a07e7d3
1 file changed