rails/actionpack/test/template/atom_feed_helper_test.rb

require 'abstract_unit'

Scroll = Struct.new(:id, :to_param, :title, :body, :updated_at, :created_at)

class ScrollsController < ActionController::Base
  FEEDS = {}
  FEEDS["defaults"] = <<-EOT
        atom_feed(:schema_date => '2008') do |feed|
          feed.title("My great blog!")
          feed.updated((@scrolls.first.created_at))

          for scroll in @scrolls
            feed.entry(scroll) do |entry|
              entry.title(scroll.title)
              entry.content(scroll.body, :type => 'html')

              entry.author do |author|
                author.name("DHH")
              end
            end
          end
        end
    EOT
    FEEDS["entry_options"] = <<-EOT
        atom_feed do |feed|
          feed.title("My great blog!")
          feed.updated((@scrolls.first.created_at))

          for scroll in @scrolls
            feed.entry(scroll, :url => "/otherstuff/" + scroll.to_param, :updated => Time.utc(2007, 1, scroll.id)) do |entry|
              entry.title(scroll.title)
              entry.content(scroll.body, :type => 'html')

              entry.author do |author|
                author.name("DHH")
              end
            end
          end
        end
    EOT
    FEEDS["xml_block"] = <<-EOT
        atom_feed do |feed|
          feed.title("My great blog!")
          feed.updated((@scrolls.first.created_at))

          feed.author do |author|
            author.name("DHH")
          end

          for scroll in @scrolls
            feed.entry(scroll, :url => "/otherstuff/" + scroll.to_param, :updated => Time.utc(2007, 1, scroll.id)) do |entry|
              entry.title(scroll.title)
              entry.content(scroll.body, :type => 'html')
            end
          end
        end
    EOT
    FEEDS["feed_with_atomPub_namespace"] = <<-EOT
        atom_feed({'xmlns:app' => 'http://www.w3.org/2007/app',
                 'xmlns:openSearch' => 'http://a9.com/-/spec/opensearch/1.1/'}) do |feed|
          feed.title("My great blog!")
          feed.updated((@scrolls.first.created_at))

          for scroll in @scrolls
            feed.entry(scroll) do |entry|
              entry.title(scroll.title)
              entry.content(scroll.body, :type => 'html')
              entry.tag!('app:edited', Time.now)

              entry.author do |author|
                author.name("DHH")
              end
            end
          end
        end
    EOT
  def index
    @scrolls = [
      Scroll.new(1, "1", "Hello One", "Something <i>COOL!</i>", Time.utc(2007, 12, 12, 15), Time.utc(2007, 12, 12, 15)),
      Scroll.new(2, "2", "Hello Two", "Something Boring", Time.utc(2007, 12, 12, 15)),
    ]
    
    render :inline => FEEDS[params[:id]], :type => :builder
  end

  protected

  def rescue_action(e)
    raise(e)
  end
end

class AtomFeedTest < Test::Unit::TestCase
  def setup
    @request    = ActionController::TestRequest.new
    @response   = ActionController::TestResponse.new
    @controller = ScrollsController.new

    @request.host = "www.nextangle.com"
  end
  
  def test_feed_should_use_default_language_if_none_is_given
    with_restful_routing(:scrolls) do
      get :index, :id => "defaults"
      assert_match %r{xml:lang="en-US"}, @response.body
    end
  end
  
  def test_feed_should_include_two_entries
    with_restful_routing(:scrolls) do
      get :index, :id => "defaults"
      assert_select "entry", 2
    end
  end
  
  def test_entry_should_only_use_published_if_created_at_is_present
    with_restful_routing(:scrolls) do
      get :index, :id => "defaults"
      assert_select "published", 1
    end
  end

  def test_entry_with_prefilled_options_should_use_those_instead_of_querying_the_record
    with_restful_routing(:scrolls) do
      get :index, :id => "entry_options"

      assert_select "updated", Time.utc(2007, 1, 1).xmlschema
      assert_select "updated", Time.utc(2007, 1, 2).xmlschema
    end
  end

  def test_self_url_should_default_to_current_request_url
    with_restful_routing(:scrolls) do
      get :index, :id => "defaults"
      assert_select "link[rel=self][href=http://www.nextangle.com/scrolls?id=defaults]"
    end
  end

  def test_feed_id_should_be_a_valid_tag
    with_restful_routing(:scrolls) do
      get :index, :id => "defaults"
      assert_select "id", :text => "tag:www.nextangle.com,2008:/scrolls?id=defaults"
    end
  end

  def test_entry_id_should_be_a_valid_tag
    with_restful_routing(:scrolls) do
      get :index, :id => "defaults"
      assert_select "entry id", :text => "tag:www.nextangle.com,2008:Scroll/1"
      assert_select "entry id", :text => "tag:www.nextangle.com,2008:Scroll/2"
    end
  end

  def test_feed_should_allow_nested_xml_blocks
    with_restful_routing(:scrolls) do
      get :index, :id => "xml_block"
      assert_select "author name", :text => "DHH"
    end
  end

  def test_feed_should_include_atomPub_namespace
    with_restful_routing(:scrolls) do
      get :index, :id => "feed_with_atomPub_namespace"
      assert_match %r{xml:lang="en-US"}, @response.body
      assert_match %r{xmlns="http://www.w3.org/2005/Atom"}, @response.body
      assert_match %r{xmlns:app="http://www.w3.org/2007/app"}, @response.body
    end
  end

  private
    def with_restful_routing(resources)
      with_routing do |set|
        set.draw do |map|
          map.resources(resources)
        end
        yield
      end
    end
end