# File lib/fog/identity/openstack/v2/requests/list_roles_for_user_on_tenant.rb, line 16
          def list_roles_for_user_on_tenant(tenant_id, user_id)
            data[:user_tenant_membership][tenant_id] ||= {}
            data[:user_tenant_membership][tenant_id][user_id] ||= []
            roles = data[:user_tenant_membership][tenant_id][user_id].map do |role_id|
              data[:roles][role_id]
            end

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