ActionItem936: RSS reader block

Joenio Costa · Antonio Terceiro
1 parent e4dcc429
Showing 10 changed files with 349 additions and 1 deletions Show diff stats
app/controllers/my_profile/profile_design_controller.rb
app/models/feed_reader_block.rb
app/views/box_organizer/_feed_reader_block.rhtml
lib/feed_handler.rb
public/stylesheets/blocks/feed-reader-block.css
script/feed-updater
test/fixtures/files/feed.xml
test/functional/profile_design_controller_test.rb
test/unit/feed_handler_test.rb
test/unit/feed_reader_block_test.rb
@@ -5,7 +5,7 @@ class ProfileDesignController &lt; BoxOrganizerController
   protect 'edit_profile_design', :profile
  
   def available_blocks
-    blocks = [ ArticleBlock, TagsBlock, RecentDocumentsBlock, ProfileInfoBlock, LinkListBlock, MyNetworkBlock ]
+    blocks = [ ArticleBlock, TagsBlock, RecentDocumentsBlock, ProfileInfoBlock, LinkListBlock, MyNetworkBlock, FeedReaderBlock ]
  
     # blocks exclusive for organizations
     if profile.has_members?
@@ -0,0 +1,57 @@
+class FeedReaderBlock < Block
+
+  include DatesHelper
+
+  settings_items :address, :type => :string
+  settings_items :limit, :type => :integer
+  settings_items :fetched_at, :type => :date
+
+  settings_items :feed_title, :type => :string
+  settings_items :feed_items, :type => :array
+
+  before_create do |block|
+    block.limit = 5
+    block.feed_items = []
+  end
+
+  def self.description
+    _('List the latest N posts from a given RSS feed.')
+  end
+
+  def help
+    _('This block can be used to create a list of latest N posts from a given RSS feed. You should only enter the RSS feed address.')
+  end
+
+  def default_title
+    self.feed_title.nil? ? _('Feed Reader') : self.feed_title
+  end
+
+  def formatted_feed_content
+    if self.fetched_at.nil? or self.feed_items.empty?
+      return ("<p class='feed-reader-block-error'>%s</p>" % _('Feed content was not loaded yet'))
+    else
+      return "<ul class='feed-reader-block-list'>" +
+        self.feed_items.map{ |item| "<li><a href='#{item[:link]}' class='feed-reader-block-item'>#{item[:title]}</a></li>" }.join("\n") +
+        "</ul>" +
+        "<div class='feed-reader-block-fetched-at'>#{_("Updated: %s") % show_date(self.fetched_at)}</div>"
+    end
+  end
+
+  def add_item(title, link, date, content)
+    self.feed_items << {:title => title, :link => link}
+  end
+
+  def clean
+    self.feed_items = []
+    self.feed_title = nil
+  end
+
+  def content
+    block_title(title) + formatted_feed_content
+  end
+
+  def editable?
+    true
+  end
+
+end
@@ -0,0 +1,4 @@
+<div id='edit-feed-reader-block'>
+  <%= labelled_form_field _('Address'), text_field(:block, :address, :size => 40) %>
+  <%= labelled_form_field _('Limit of posts to display'), select(:block, :limit, [5, 10, 20, 50]) %>
+</div>
@@ -0,0 +1,38 @@
+require 'feedparser'
+require 'open-uri'
+
+class FeedHandler
+
+  def parse(content)
+    raise FeedHandler::ParseError, "Content is nil" if content.nil?
+    begin
+      return FeedParser::Feed::new(content)
+    rescue Exception => ex
+      raise FeedHandler::ParseError, ex.to_s
+    end
+  end
+
+  def fetch(address)
+    begin
+      content = ""
+      open(address) do |s| content = s.read end
+      return content
+    rescue Exception => ex
+      raise FeedHandler::FetchError, ex.to_s
+    end
+  end
+
+  def process(container)
+    content = fetch(container.address)
+    container.fetched_at = Time.now
+    parse = parse(content)
+    container.feed_title = parse.title
+    parse.items[0..container.limit-1].each do |item|
+      container.add_item(item.title, item.link, item.date, item.content)
+    end
+  end
+
+  class ParseError < Exception; end
+  class FetchError < Exception; end
+
+end
@@ -0,0 +1,5 @@
+.feed-reader-block-fetched-at {
+  color: #CCC;
+  font-size: 11px;
+  text-align: center;
+}
@@ -0,0 +1,20 @@
+#!/usr/bin/env ruby
+require File.dirname(__FILE__) + '/../config/environment'
+
+FeedReaderBlock.find(:all).each do |feed_block|
+  unless feed_block.address.nil?
+    begin
+      feed_block.clean
+      handler = FeedHandler.new
+      handler.process(feed_block)
+      feed_block.save!
+      RAILS_DEFAULT_LOGGER.info("%s ID %d fetched at %s" % [feed_block.class.name, feed_block.id, feed_block.fetched_at])
+    rescue FeedHandler::ParseError => ex
+      RAILS_DEFAULT_LOGGER.warn("Error parsing content from %s ID %d\n%s" % [feed_block.class.name, feed_block.id, ex.to_s])
+    rescue FeedHandler::FetchError => ex
+      RAILS_DEFAULT_LOGGER.warn("Error fetching content from %s ID %d\n%s" % [feed_block.class.name, feed_block.id, ex.to_s])
+    rescue Exception => ex
+      RAILS_DEFAULT_LOGGER.warn("Unknown error from %s ID %d\n%s" % [feed_block.class.name, feed_block.id, ex.to_s])
+    end
+  end
+end
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<rss version="2.0">
+  <channel>
+    <title>Feed for unit tests</title>
+    <link>http://localhost/feed-test</link>
+    <description>Feed content</description>
+    <language>pt_BR</language>
+    <item>
+      <title>Last POST</title>
+      <description>
+        Cursus justo nec urna. Suspendisse potenti. In hac
+        habitasse platea dictumst. Cras quis lacus. Vestibulum rhoncus
+        congue lacus.
+      </description>
+      <pubDate>Wed, 11 Mar 2009 19:15:57 -0300</pubDate>
+      <link>http://localhost/last-post</link>
+      <guid>http://localhost/last-post</guid>
+    </item>
+    <item>
+      <title>Second POST</title>
+      <description>
+        Suspendisse tincidunt mi vel metus. Vivamus non urna in nisi gravida congue.
+        Aenean semper orci a eros. Praesent dictum. Maecenas pharetra odio ut dui.
+        Pellentesque ut orci. Sed lobortis, velit at laoreet suscipit, quam est
+        sagittis nibh.
+      </description>
+      <pubDate>Wed, 18 Feb 2009 11:01:53 -0300</pubDate>
+      <link>http://localhost/second-post</link>
+      <guid>http://localhost/second-post</guid>
+    </item>
+    <item>
+      <title>First POST</title>
+      <description>
+        Lacus at sapien suscipit tempus. Proin pulvinar velit
+        sed nulla. Curabitur aliquet leo ac massa. Praesent posuere lectus
+        vitae odio. Donec imperdiet urna vel ante. In semper accumsan diam.
+        Vestibulum porta justo. Suspendisse egestas commodo eros.
+      </description>
+      <pubDate>Sun, 18 Jan 2009 11:34:30 -0300</pubDate>
+      <link>http://localhost/first-post</link>
+      <guid>http://localhost/first-post</guid>
+    </item>
+  </channel>
+</rss>
@@ -289,4 +289,28 @@ class ProfileDesignControllerTest &lt; Test::Unit::TestCase
     assert_equal !state, block.visible?
   end
  
+  should 'offer to create feed reader block' do
+    get :add_block, :profile => 'designtestuser'
+    assert_tag :tag => 'input', :attributes => { :id => 'type_feedreaderblock', :value => 'FeedReaderBlock' }
+  end
+
+  should 'be able to edit FeedReaderBlock' do
+    @box1.blocks << FeedReaderBlock.new(:address => 'feed address')
+
+    get :edit, :profile => 'designtestuser', :id => @box1.blocks[-1].id
+
+    assert_response :success
+    assert_tag :tag => 'input', :attributes => { :name => "block[address]", :value => 'feed address' }
+    assert_tag :tag => 'select', :attributes => { :name => "block[limit]" }
+  end
+
+  should 'be able to save FeedReaderBlock configurations' do
+    @box1.blocks << FeedReaderBlock.new(:address => 'feed address')
+
+    post :save, :profile => 'designtestuser', :id => @box1.blocks[-1].id, :block => {:address => 'new feed address', :limit => '20'}
+
+    assert_equal 'new feed address', @box1.blocks[-1].address
+    assert_equal 20, @box1.blocks[-1].limit
+  end
+
 end
@@ -0,0 +1,83 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+class FeedHandlerTest < Test::Unit::TestCase
+
+  class FeedContainer
+    attr_accessor :limit
+    attr_accessor :fetched_at
+    attr_accessor :feed_title
+    attr_accessor :feed_items
+    attr_accessor :address
+    def initialize
+      self.limit = 5
+      self.feed_title = "Feed Container Mocked"
+      self.feed_items = []
+      self.address = 'test/fixtures/files/feed.xml'
+    end
+    def add_item(title, link, date, content)
+      self.feed_items << title
+    end
+  end
+
+  def setup
+    @handler = FeedHandler.new
+    @container = FeedContainer.new
+  end
+  attr_reader :handler, :container
+
+  should 'fetch feed content' do
+    content = handler.fetch(container.address)
+    assert_match /<description>Feed content<\/description>/, content
+    assert_match /<title>Feed for unit tests<\/title>/, content
+  end
+
+  should 'parse feed content' do
+    content = ""
+    open(container.address) do |s| content = s.read end
+    parse = handler.parse(content)
+    assert_equal 'Feed for unit tests', parse.title
+    assert_equal 'http://localhost/feed-test', parse.link
+    assert_equal 'Last POST', parse.items[0].title
+  end
+
+  should 'process feed and populate container' do
+    handler.process(container)
+    assert_equal 'Feed for unit tests', container.feed_title
+    assert_equal ["Last POST", "Second POST", "First POST"], container.feed_items
+  end
+
+  should 'raise exception when parser nil' do
+    handler = FeedHandler.new
+    assert_raise FeedHandler::ParseError do
+      handler.parse(nil)
+    end
+  end
+
+  should 'raise exception when parser invalid content' do
+    handler = FeedHandler.new
+    assert_raise FeedHandler::ParseError do
+      handler.parse('<invalid>content</invalid>')
+    end
+  end
+
+  should 'raise exception when fetch nil' do
+    handler = FeedHandler.new
+    assert_raise FeedHandler::FetchError do
+      handler.fetch(nil)
+    end
+  end
+
+  should 'raise exception when fetch invalid address' do
+    handler = FeedHandler.new
+    assert_raise FeedHandler::FetchError do
+      handler.fetch('bli://invalid@address')
+    end
+  end
+
+  should 'save only latest N posts from feed' do
+    container.limit = 1
+    handler.process(container)
+    assert_equal 1, container.feed_items.size
+  end
+
+end
@@ -0,0 +1,73 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+class FeedReaderBlockTest < ActiveSupport::TestCase
+
+  include DatesHelper
+
+  def setup
+    @feed = FeedReaderBlock.new
+    @fetched_at = Time.now
+    @feed.fetched_at = @fetched_at
+    @feed.save!
+  end
+  attr_reader :feed, :fetched_at
+
+  should 'default describe' do
+    assert_not_equal Block.description, FeedReaderBlock.description
+  end
+
+  should 'have address and limit' do
+    assert_respond_to feed, :address
+    assert_respond_to feed, :limit
+  end
+
+  should 'default value of limit' do
+    assert_equal 5, feed.limit
+  end
+
+  should 'is editable' do
+    assert feed.editable?
+  end
+
+  should 'display feed posts from content' do
+    feed.feed_items = []
+    %w[ last-post second-post first-post ].each do |i|
+      feed.feed_items << {:title => i, :link => "http://localhost/#{i}"}
+    end
+    feed.feed_title = 'Feed for unit tests'
+    feed_content = feed.content
+    assert_tag_in_string feed_content, :tag => 'h3', :content => 'Feed for unit tests'
+    assert_tag_in_string feed_content, :tag => 'a', :attributes => { :href => 'http://localhost/last-post' }, :content => 'last-post'
+    assert_tag_in_string feed_content, :tag => 'a', :attributes => { :href => 'http://localhost/second-post' }, :content => 'second-post'
+    assert_tag_in_string feed_content, :tag => 'a', :attributes => { :href => 'http://localhost/first-post' }, :content => 'first-post'
+  end
+
+  should 'display channel title as title by default' do
+    feed.feed_title = 'Feed for unit tests'
+    assert_equal 'Feed for unit tests', feed.title
+  end
+
+  should 'display default title when hasnt feed_content' do
+    assert_equal 'Feed Reader', feed.title
+  end
+
+  should 'notice when content not fetched yet' do
+    assert_tag_in_string feed.content, :tag => 'p', :content => 'Feed content was not loaded yet'
+  end
+
+  should 'display last fetched date' do
+    feed.feed_items = ['one', 'two']
+    assert_tag_in_string feed.content, :tag => 'div',
+      :content => "Updated: #{show_date(@fetched_at)}",
+      :attributes => {:class => 'feed-reader-block-fetched-at'}
+  end
+
+  should 'clear feed title and items' do
+    feed.feed_items = %w[ last-post second-post first-post ]
+    feed.feed_title = 'Feed Test'
+    feed.clean
+    assert_nil feed.feed_title
+    assert_equal [], feed.feed_items
+  end
+
+end
...	...	@@ -5,7 +5,7 @@ class ProfileDesignController < BoxOrganizerController
5	5	protect 'edit_profile_design', :profile
6	6
7	7	def available_blocks
8		- blocks = [ ArticleBlock, TagsBlock, RecentDocumentsBlock, ProfileInfoBlock, LinkListBlock, MyNetworkBlock ]
	8	+ blocks = [ ArticleBlock, TagsBlock, RecentDocumentsBlock, ProfileInfoBlock, LinkListBlock, MyNetworkBlock, FeedReaderBlock ]
9	9
10	10	# blocks exclusive for organizations
11	11	if profile.has_members?
...	...
...	...	@@ -0,0 +1,57 @@
	1	+class FeedReaderBlock < Block
	2	+
	3	+ include DatesHelper
	4	+
	5	+ settings_items :address, :type => :string
	6	+ settings_items :limit, :type => :integer
	7	+ settings_items :fetched_at, :type => :date
	8	+
	9	+ settings_items :feed_title, :type => :string
	10	+ settings_items :feed_items, :type => :array
	11	+
	12	+ before_create do \|block\|
	13	+ block.limit = 5
	14	+ block.feed_items = []
	15	+ end
	16	+
	17	+ def self.description
	18	+ _('List the latest N posts from a given RSS feed.')
	19	+ end
	20	+
	21	+ def help
	22	+ _('This block can be used to create a list of latest N posts from a given RSS feed. You should only enter the RSS feed address.')
	23	+ end
	24	+
	25	+ def default_title
	26	+ self.feed_title.nil? ? _('Feed Reader') : self.feed_title
	27	+ end
	28	+
	29	+ def formatted_feed_content
	30	+ if self.fetched_at.nil? or self.feed_items.empty?
	31	+ return ("<p class='feed-reader-block-error'>%s</p>" % _('Feed content was not loaded yet'))
	32	+ else
	33	+ return "<ul class='feed-reader-block-list'>" +
	34	+ self.feed_items.map{ \|item\| "<li><a href='#{item[:link]}' class='feed-reader-block-item'>#{item[:title]}</a></li>" }.join("\n") +
	35	+ "</ul>" +
	36	+ "<div class='feed-reader-block-fetched-at'>#{_("Updated: %s") % show_date(self.fetched_at)}</div>"
	37	+ end
	38	+ end
	39	+
	40	+ def add_item(title, link, date, content)
	41	+ self.feed_items << {:title => title, :link => link}
	42	+ end
	43	+
	44	+ def clean
	45	+ self.feed_items = []
	46	+ self.feed_title = nil
	47	+ end
	48	+
	49	+ def content
	50	+ block_title(title) + formatted_feed_content
	51	+ end
	52	+
	53	+ def editable?
	54	+ true
	55	+ end
	56	+
	57	+end
...	...
...	...	@@ -0,0 +1,4 @@
	1	+<div id='edit-feed-reader-block'>
	2	+ <%= labelled_form_field _('Address'), text_field(:block, :address, :size => 40) %>
	3	+ <%= labelled_form_field _('Limit of posts to display'), select(:block, :limit, [5, 10, 20, 50]) %>
	4	+</div>
...	...
...	...	@@ -0,0 +1,38 @@
	1	+require 'feedparser'
	2	+require 'open-uri'
	3	+
	4	+class FeedHandler
	5	+
	6	+ def parse(content)
	7	+ raise FeedHandler::ParseError, "Content is nil" if content.nil?
	8	+ begin
	9	+ return FeedParser::Feed::new(content)
	10	+ rescue Exception => ex
	11	+ raise FeedHandler::ParseError, ex.to_s
	12	+ end
	13	+ end
	14	+
	15	+ def fetch(address)
	16	+ begin
	17	+ content = ""
	18	+ open(address) do \|s\| content = s.read end
	19	+ return content
	20	+ rescue Exception => ex
	21	+ raise FeedHandler::FetchError, ex.to_s
	22	+ end
	23	+ end
	24	+
	25	+ def process(container)
	26	+ content = fetch(container.address)
	27	+ container.fetched_at = Time.now
	28	+ parse = parse(content)
	29	+ container.feed_title = parse.title
	30	+ parse.items[0..container.limit-1].each do \|item\|
	31	+ container.add_item(item.title, item.link, item.date, item.content)
	32	+ end
	33	+ end
	34	+
	35	+ class ParseError < Exception; end
	36	+ class FetchError < Exception; end
	37	+
	38	+end
...	...
...	...	@@ -0,0 +1,5 @@
	1	+.feed-reader-block-fetched-at {
	2	+ color: #CCC;
	3	+ font-size: 11px;
	4	+ text-align: center;
	5	+}
...	...
...	...	@@ -0,0 +1,20 @@
	1	+#!/usr/bin/env ruby
	2	+require File.dirname(__FILE__) + '/../config/environment'
	3	+
	4	+FeedReaderBlock.find(:all).each do \|feed_block\|
	5	+ unless feed_block.address.nil?
	6	+ begin
	7	+ feed_block.clean
	8	+ handler = FeedHandler.new
	9	+ handler.process(feed_block)
	10	+ feed_block.save!
	11	+ RAILS_DEFAULT_LOGGER.info("%s ID %d fetched at %s" % [feed_block.class.name, feed_block.id, feed_block.fetched_at])
	12	+ rescue FeedHandler::ParseError => ex
	13	+ RAILS_DEFAULT_LOGGER.warn("Error parsing content from %s ID %d\n%s" % [feed_block.class.name, feed_block.id, ex.to_s])
	14	+ rescue FeedHandler::FetchError => ex
	15	+ RAILS_DEFAULT_LOGGER.warn("Error fetching content from %s ID %d\n%s" % [feed_block.class.name, feed_block.id, ex.to_s])
	16	+ rescue Exception => ex
	17	+ RAILS_DEFAULT_LOGGER.warn("Unknown error from %s ID %d\n%s" % [feed_block.class.name, feed_block.id, ex.to_s])
	18	+ end
	19	+ end
	20	+end
...	...
...	...	@@ -0,0 +1,44 @@
	1	+<?xml version="1.0" encoding="UTF-8"?>
	2	+<rss version="2.0">
	3	+ <channel>
	4	+ <title>Feed for unit tests</title>
	5	+ <link>http://localhost/feed-test</link>
	6	+ <description>Feed content</description>
	7	+ <language>pt_BR</language>
	8	+ <item>
	9	+ <title>Last POST</title>
	10	+ <description>
	11	+ Cursus justo nec urna. Suspendisse potenti. In hac
	12	+ habitasse platea dictumst. Cras quis lacus. Vestibulum rhoncus
	13	+ congue lacus.
	14	+ </description>
	15	+ <pubDate>Wed, 11 Mar 2009 19:15:57 -0300</pubDate>
	16	+ <link>http://localhost/last-post</link>
	17	+ <guid>http://localhost/last-post</guid>
	18	+ </item>
	19	+ <item>
	20	+ <title>Second POST</title>
	21	+ <description>
	22	+ Suspendisse tincidunt mi vel metus. Vivamus non urna in nisi gravida congue.
	23	+ Aenean semper orci a eros. Praesent dictum. Maecenas pharetra odio ut dui.
	24	+ Pellentesque ut orci. Sed lobortis, velit at laoreet suscipit, quam est
	25	+ sagittis nibh.
	26	+ </description>
	27	+ <pubDate>Wed, 18 Feb 2009 11:01:53 -0300</pubDate>
	28	+ <link>http://localhost/second-post</link>
	29	+ <guid>http://localhost/second-post</guid>
	30	+ </item>
	31	+ <item>
	32	+ <title>First POST</title>
	33	+ <description>
	34	+ Lacus at sapien suscipit tempus. Proin pulvinar velit
	35	+ sed nulla. Curabitur aliquet leo ac massa. Praesent posuere lectus
	36	+ vitae odio. Donec imperdiet urna vel ante. In semper accumsan diam.
	37	+ Vestibulum porta justo. Suspendisse egestas commodo eros.
	38	+ </description>
	39	+ <pubDate>Sun, 18 Jan 2009 11:34:30 -0300</pubDate>
	40	+ <link>http://localhost/first-post</link>
	41	+ <guid>http://localhost/first-post</guid>
	42	+ </item>
	43	+ </channel>
	44	+</rss>
...	...
...	...	@@ -289,4 +289,28 @@ class ProfileDesignControllerTest < Test::Unit::TestCase
289	289	assert_equal !state, block.visible?
290	290	end
291	291
	292	+ should 'offer to create feed reader block' do
	293	+ get :add_block, :profile => 'designtestuser'
	294	+ assert_tag :tag => 'input', :attributes => { :id => 'type_feedreaderblock', :value => 'FeedReaderBlock' }
	295	+ end
	296	+
	297	+ should 'be able to edit FeedReaderBlock' do
	298	+ @box1.blocks << FeedReaderBlock.new(:address => 'feed address')
	299	+
	300	+ get :edit, :profile => 'designtestuser', :id => @box1.blocks[-1].id
	301	+
	302	+ assert_response :success
	303	+ assert_tag :tag => 'input', :attributes => { :name => "block[address]", :value => 'feed address' }
	304	+ assert_tag :tag => 'select', :attributes => { :name => "block[limit]" }
	305	+ end
	306	+
	307	+ should 'be able to save FeedReaderBlock configurations' do
	308	+ @box1.blocks << FeedReaderBlock.new(:address => 'feed address')
	309	+
	310	+ post :save, :profile => 'designtestuser', :id => @box1.blocks[-1].id, :block => {:address => 'new feed address', :limit => '20'}
	311	+
	312	+ assert_equal 'new feed address', @box1.blocks[-1].address
	313	+ assert_equal 20, @box1.blocks[-1].limit
	314	+ end
	315	+
292	316	end
...	...
...	...	@@ -0,0 +1,83 @@
	1	+require File.dirname(__FILE__) + '/../test_helper'
	2	+
	3	+class FeedHandlerTest < Test::Unit::TestCase
	4	+
	5	+ class FeedContainer
	6	+ attr_accessor :limit
	7	+ attr_accessor :fetched_at
	8	+ attr_accessor :feed_title
	9	+ attr_accessor :feed_items
	10	+ attr_accessor :address
	11	+ def initialize
	12	+ self.limit = 5
	13	+ self.feed_title = "Feed Container Mocked"
	14	+ self.feed_items = []
	15	+ self.address = 'test/fixtures/files/feed.xml'
	16	+ end
	17	+ def add_item(title, link, date, content)
	18	+ self.feed_items << title
	19	+ end
	20	+ end
	21	+
	22	+ def setup
	23	+ @handler = FeedHandler.new
	24	+ @container = FeedContainer.new
	25	+ end
	26	+ attr_reader :handler, :container
	27	+
	28	+ should 'fetch feed content' do
	29	+ content = handler.fetch(container.address)
	30	+ assert_match /<description>Feed content<\/description>/, content
	31	+ assert_match /<title>Feed for unit tests<\/title>/, content
	32	+ end
	33	+
	34	+ should 'parse feed content' do
	35	+ content = ""
	36	+ open(container.address) do \|s\| content = s.read end
	37	+ parse = handler.parse(content)
	38	+ assert_equal 'Feed for unit tests', parse.title
	39	+ assert_equal 'http://localhost/feed-test', parse.link
	40	+ assert_equal 'Last POST', parse.items[0].title
	41	+ end
	42	+
	43	+ should 'process feed and populate container' do
	44	+ handler.process(container)
	45	+ assert_equal 'Feed for unit tests', container.feed_title
	46	+ assert_equal ["Last POST", "Second POST", "First POST"], container.feed_items
	47	+ end
	48	+
	49	+ should 'raise exception when parser nil' do
	50	+ handler = FeedHandler.new
	51	+ assert_raise FeedHandler::ParseError do
	52	+ handler.parse(nil)
	53	+ end
	54	+ end
	55	+
	56	+ should 'raise exception when parser invalid content' do
	57	+ handler = FeedHandler.new
	58	+ assert_raise FeedHandler::ParseError do
	59	+ handler.parse('<invalid>content</invalid>')
	60	+ end
	61	+ end
	62	+
	63	+ should 'raise exception when fetch nil' do
	64	+ handler = FeedHandler.new
	65	+ assert_raise FeedHandler::FetchError do
	66	+ handler.fetch(nil)
	67	+ end
	68	+ end
	69	+
	70	+ should 'raise exception when fetch invalid address' do
	71	+ handler = FeedHandler.new
	72	+ assert_raise FeedHandler::FetchError do
	73	+ handler.fetch('bli://invalid@address')
	74	+ end
	75	+ end
	76	+
	77	+ should 'save only latest N posts from feed' do
	78	+ container.limit = 1
	79	+ handler.process(container)
	80	+ assert_equal 1, container.feed_items.size
	81	+ end
	82	+
	83	+end
...	...
...	...	@@ -0,0 +1,73 @@
	1	+require File.dirname(__FILE__) + '/../test_helper'
	2	+
	3	+class FeedReaderBlockTest < ActiveSupport::TestCase
	4	+
	5	+ include DatesHelper
	6	+
	7	+ def setup
	8	+ @feed = FeedReaderBlock.new
	9	+ @fetched_at = Time.now
	10	+ @feed.fetched_at = @fetched_at
	11	+ @feed.save!
	12	+ end
	13	+ attr_reader :feed, :fetched_at
	14	+
	15	+ should 'default describe' do
	16	+ assert_not_equal Block.description, FeedReaderBlock.description
	17	+ end
	18	+
	19	+ should 'have address and limit' do
	20	+ assert_respond_to feed, :address
	21	+ assert_respond_to feed, :limit
	22	+ end
	23	+
	24	+ should 'default value of limit' do
	25	+ assert_equal 5, feed.limit
	26	+ end
	27	+
	28	+ should 'is editable' do
	29	+ assert feed.editable?
	30	+ end
	31	+
	32	+ should 'display feed posts from content' do
	33	+ feed.feed_items = []
	34	+ %w[ last-post second-post first-post ].each do \|i\|
	35	+ feed.feed_items << {:title => i, :link => "http://localhost/#{i}"}
	36	+ end
	37	+ feed.feed_title = 'Feed for unit tests'
	38	+ feed_content = feed.content
	39	+ assert_tag_in_string feed_content, :tag => 'h3', :content => 'Feed for unit tests'
	40	+ assert_tag_in_string feed_content, :tag => 'a', :attributes => { :href => 'http://localhost/last-post' }, :content => 'last-post'
	41	+ assert_tag_in_string feed_content, :tag => 'a', :attributes => { :href => 'http://localhost/second-post' }, :content => 'second-post'
	42	+ assert_tag_in_string feed_content, :tag => 'a', :attributes => { :href => 'http://localhost/first-post' }, :content => 'first-post'
	43	+ end
	44	+
	45	+ should 'display channel title as title by default' do
	46	+ feed.feed_title = 'Feed for unit tests'
	47	+ assert_equal 'Feed for unit tests', feed.title
	48	+ end
	49	+
	50	+ should 'display default title when hasnt feed_content' do
	51	+ assert_equal 'Feed Reader', feed.title
	52	+ end
	53	+
	54	+ should 'notice when content not fetched yet' do
	55	+ assert_tag_in_string feed.content, :tag => 'p', :content => 'Feed content was not loaded yet'
	56	+ end
	57	+
	58	+ should 'display last fetched date' do
	59	+ feed.feed_items = ['one', 'two']
	60	+ assert_tag_in_string feed.content, :tag => 'div',
	61	+ :content => "Updated: #{show_date(@fetched_at)}",
	62	+ :attributes => {:class => 'feed-reader-block-fetched-at'}
	63	+ end
	64	+
	65	+ should 'clear feed title and items' do
	66	+ feed.feed_items = %w[ last-post second-post first-post ]
	67	+ feed.feed_title = 'Feed Test'
	68	+ feed.clean
	69	+ assert_nil feed.feed_title
	70	+ assert_equal [], feed.feed_items
	71	+ end
	72	+
	73	+end
...	...