    # File lib/fog/openstack/requests/identity/list_roles_for_user_on_tenant.rb, line 15
            def list_roles_for_user_on_tenant(tenant_id, user_id)
              self.data[:user_tenant_membership][tenant_id] ||= {}
              self.data[:user_tenant_membership][tenant_id][user_id] ||= []
              roles = self.data[:user_tenant_membership][tenant_id][user_id].map do |role_id|
                self.data[:roles][role_id]
              end

              Excon::Response.new(
                :body   => { 'roles' => roles },
                :status => 200
              )
            end