module ActionDispatch::Assertions::RoutingAssertions::WithIntegrationRouting

def reset_routes(old_routes, old_routes_call_method, old_integration_session)
  app.instance_variable_set(:@routes, old_routes)
  @original_routes.singleton_class.redefine_method(:call, &old_routes_call_method)
  @integration_session = old_integration_session
  @routes = old_routes
end