1 files changed, 58 insertions, 0 deletions
diff --git a/railties/test/application/url_generation_test.rb b/railties/test/application/url_generation_test.rb
new file mode 100644
index 0000000000..f22b9fda3d
--- /dev/null
+++ b/railties/test/application/url_generation_test.rb
@@ -0,0 +1,58 @@
+# frozen_string_literal: true
+
+require "isolation/abstract_unit"
+
+module ApplicationTests
+  class UrlGenerationTest < ActiveSupport::TestCase
+    include ActiveSupport::Testing::Isolation
+
+    def app
+      Rails.application
+    end
+
+    test "it works" do
+      require "rails"
+      require "action_controller/railtie"
+      require "action_view/railtie"
+
+      class MyApp < Rails::Application
+        config.session_store :cookie_store, key: "_myapp_session"
+        config.active_support.deprecation = :log
+        config.eager_load = false
+      end
+
+      Rails.application.initialize!
+
+      class ::ApplicationController < ActionController::Base
+      end
+
+      class ::OmgController < ::ApplicationController
+        def index
+          render plain: omg_path
+        end
+      end
+
+      MyApp.routes.draw do
+        get "/" => "omg#index", as: :omg
+      end
+
+      require "rack/test"
+      extend Rack::Test::Methods
+
+      get "/"
+      assert_equal "/", last_response.body
+    end
+
+    def test_routes_know_the_relative_root
+      require "rails"
+      require "action_controller/railtie"
+      require "action_view/railtie"
+
+      relative_url = "/hello"
+      ENV["RAILS_RELATIVE_URL_ROOT"] = relative_url
+      app = Class.new(Rails::Application)
+      assert_equal relative_url, app.routes.relative_url_root
+      ENV["RAILS_RELATIVE_URL_ROOT"] = nil
+    end
+  end
+end