Validate for all routing

mirereba_iinen.rb

require 'rails_helper'
module ValidateForAllRouting
  class << self
    # Admin配下のpath名と、それに合致するcontroller名とaction名を取得
    def admin_routes(actions)
      routes = routes(actions)
      routes.select { |route| route[:name].include?('admin') }
    end

    private

    def routes(actions)
      routes = Rails.application.routes.routes
      routes = routes.map { |route| prepare_route(route) if route.name }.compact
      routes.select { |route| actions.include?(route[:action]) }
    end

    def prepare_route(route)
      { name: route.name, action: route.requirements[:action], controller: route.defaults[:controller] }
    end
  end
end

describe 'ValidateForAllRouting' do
  IGNORE_PATH = [
    # 自動テスト対象外のpathを記載 
  ].freeze

  # 前提データが必要な場合は自動テストを行うのが難しいので、一覧と新規に限定
  admin_routes = ValidateForAllRouting.admin_routes(['index', 'new'])
  # 対象外のpathを除外
  target_routes = admin_routes.select { |route| IGNORE_PATH.exclude?(route[:name]) }
  url_helper = Rails.application.routes.url_helpers

  # 対象のpathの件数分、遷移しステータスコード200が返ってくることを検証
  target_routes.each do |route|
    describe route[:name] do
      before do
        visit url_helper.url_for(host: Capybara.app_host, controller: route[:controller], action: route[:action])
      end
      it "#{route[:controller]} # #{route[:action]}" do
        expect(page.status_code).to eq 200
      end
    end
  end
end