railties/test/application/rendering_test.rb


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require "isolation/abstract_unit"
require "rack/test"

module ApplicationTests
  class RoutingTest < ActiveSupport::TestCase
    include ActiveSupport::Testing::Isolation
    include Rack::Test::Methods

    def setup
      build_app
    end

    def teardown
      teardown_app
    end

    test "Unknown format falls back to HTML template" do
      app_file "config/routes.rb", <<-RUBY
        Rails.application.routes.draw do
          get 'pages/:id', to: 'pages#show'
        end
      RUBY

      app_file "app/controllers/pages_controller.rb", <<-RUBY
        class PagesController < ApplicationController
          layout false

          def show
          end
        end
      RUBY

      app_file "app/views/pages/show.html.erb", <<-RUBY
        <%= params[:id] %>
      RUBY

      get "/pages/foo"
      assert_equal 200, last_response.status

      get "/pages/foo.bar"
      assert_equal 200, last_response.status
    end
  end
end