# File lib/rhc/rest/mock.rb, line 627
    def add_domain(id, extra=false)
      d = MockRestDomain.new(self, id)
      if extra
        d.attributes['creation_time'] = '2013-07-21T15:00:44Z'
        d.attributes['allowed_gear_sizes'] = ['small']
        d.add_member(RHC::Rest::Membership::Member.new(:id => '1', :role => 'admin', :explicit_role => 'admin', :owner => true, :login => 'a_user_name', :type => 'user'))
      end
      @domains << d
      d
    end