require 'abstract_unit' class EngineTest < ActiveSupport::TestCase it "reports routes as available only if they're actually present" do engine = Class.new(Rails::Engine) do def initialize(*args) @routes = nil super end end assert !engine.routes? end it "does not add more paths to routes on each call" do engine = Class.new(Rails::Engine) engine.routes length = engine.routes.draw_paths.length engine.routes assert_equal length, engine.routes.draw_paths.length end end