# 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