move route_inspector to actionpack

this is so we can show route output in the development when we get a routing error. Railties can use features of ActionDispatch, but ActionDispatch should not depend on Railties.

1 files changed, 170 insertions, 0 deletions

diff --git a/actionpack/test/dispatch/routing/inspector_test.rb b/actionpack/test/dispatch/routing/inspector_test.rb
new file mode 100644
index 0000000000..ae830300a1
--- /dev/null
+++ b/actionpack/test/dispatch/routing/inspector_test.rb
@@ -0,0 +1,170 @@
+require 'minitest/autorun'
+require 'action_controller'
+require 'rails/engine'
+require 'action_dispatch/routing/inspector'
+
+module ActionDispatch
+  module Routing
+    class RouteInspectTest < ActiveSupport::TestCase
+      def setup
+        @set = ActionDispatch::Routing::RouteSet.new
+        @inspector = ActionDispatch::Routing::RouteInspector.new
+        app = ActiveSupport::OrderedOptions.new
+        app.config = ActiveSupport::OrderedOptions.new
+        app.config.assets = ActiveSupport::OrderedOptions.new
+        app.config.assets.prefix = '/sprockets'
+        Rails.stubs(:application).returns(app)
+        Rails.stubs(:env).returns("development")
+      end
+
+      def draw(&block)
+        @set.draw(&block)
+        @inspector.format(@set.routes)
+      end
+
+      def test_displaying_routes_for_engines
+        engine = Class.new(Rails::Engine) do
+          def self.to_s
+            "Blog::Engine"
+          end
+        end
+        engine.routes.draw do
+          get '/cart', :to => 'cart#show'
+        end
+
+        output = draw do
+          get '/custom/assets', :to => 'custom_assets#show'
+          mount engine => "/blog", :as => "blog"
+        end
+
+        expected = [
+          "custom_assets GET /custom/assets(.:format) custom_assets#show",
+          "         blog     /blog                    Blog::Engine",
+          "\nRoutes for Blog::Engine:",
+          "cart GET /cart(.:format) cart#show"
+        ]
+        assert_equal expected, output
+      end
+
+      def test_cart_inspect
+        output = draw do
+          get '/cart', :to => 'cart#show'
+        end
+        assert_equal ["cart GET /cart(.:format) cart#show"], output
+      end
+
+      def test_inspect_shows_custom_assets
+        output = draw do
+          get '/custom/assets', :to => 'custom_assets#show'
+        end
+        assert_equal ["custom_assets GET /custom/assets(.:format) custom_assets#show"], output
+      end
+
+      def test_inspect_routes_shows_resources_route
+        output = draw do
+          resources :articles
+        end
+        expected = [
+          "    articles GET    /articles(.:format)          articles#index",
+          "             POST   /articles(.:format)          articles#create",
+          " new_article GET    /articles/new(.:format)      articles#new",
+          "edit_article GET    /articles/:id/edit(.:format) articles#edit",
+          "     article GET    /articles/:id(.:format)      articles#show",
+          "             PATCH  /articles/:id(.:format)      articles#update",
+          "             PUT    /articles/:id(.:format)      articles#update",
+          "             DELETE /articles/:id(.:format)      articles#destroy" ]
+        assert_equal expected, output
+      end
+
+      def test_inspect_routes_shows_root_route
+        output = draw do
+          root :to => 'pages#main'
+        end
+        assert_equal ["root GET / pages#main"], output
+      end
+
+      def test_inspect_routes_shows_dynamic_action_route
+        output = draw do
+          get 'api/:action' => 'api'
+        end
+        assert_equal [" GET /api/:action(.:format) api#:action"], output
+      end
+
+      def test_inspect_routes_shows_controller_and_action_only_route
+        output = draw do
+          get ':controller/:action'
+        end
+        assert_equal [" GET /:controller/:action(.:format) :controller#:action"], output
+      end
+
+      def test_inspect_routes_shows_controller_and_action_route_with_constraints
+        output = draw do
+          get ':controller(/:action(/:id))', :id => /\d+/
+        end
+        assert_equal [" GET /:controller(/:action(/:id))(.:format) :controller#:action {:id=>/\\d+/}"], output
+      end
+
+      def test_rake_routes_shows_route_with_defaults
+        output = draw do
+          get 'photos/:id' => 'photos#show', :defaults => {:format => 'jpg'}
+        end
+        assert_equal [%Q[ GET /photos/:id(.:format) photos#show {:format=>"jpg"}]], output
+      end
+
+      def test_rake_routes_shows_route_with_constraints
+        output = draw do
+          get 'photos/:id' => 'photos#show', :id => /[A-Z]\d{5}/
+        end
+        assert_equal [" GET /photos/:id(.:format) photos#show {:id=>/[A-Z]\\d{5}/}"], output
+      end
+
+      class RackApp
+        def self.call(env)
+        end
+      end
+
+      def test_rake_routes_shows_route_with_rack_app
+        output = draw do
+          get 'foo/:id' => RackApp, :id => /[A-Z]\d{5}/
+        end
+        assert_equal [" GET /foo/:id(.:format) #{RackApp.name} {:id=>/[A-Z]\\d{5}/}"], output
+      end
+
+      def test_rake_routes_shows_route_with_rack_app_nested_with_dynamic_constraints
+        constraint = Class.new do
+          def to_s
+            "( my custom constraint )"
+          end
+        end
+
+        output = draw do
+          scope :constraint => constraint.new do
+            mount RackApp => '/foo'
+          end
+        end
+
+        assert_equal ["  /foo #{RackApp.name} {:constraint=>( my custom constraint )}"], output
+      end
+
+      def test_rake_routes_dont_show_app_mounted_in_assets_prefix
+        output = draw do
+          get '/sprockets' => RackApp
+        end
+        assert_no_match(/RackApp/, output.first)
+        assert_no_match(/\/sprockets/, output.first)
+      end
+
+      def test_redirect
+        output = draw do
+          get "/foo"    => redirect("/foo/bar"), :constraints => { :subdomain => "admin" }
+          get "/bar"    => redirect(path: "/foo/bar", status: 307)
+          get "/foobar" => redirect{ "/foo/bar" }
+        end
+
+        assert_equal "   foo GET /foo(.:format)    redirect(301, /foo/bar) {:subdomain=>\"admin\"}", output[0]
+        assert_equal "   bar GET /bar(.:format)    redirect(307, path: /foo/bar)", output[1]
+        assert_equal "foobar GET /foobar(.:format) redirect(301)", output[2]
+      end
+    end
+  end
+end