Got gem unit tests running with rake test

Rakefile

@@ -1,2 +1,11 @@
 require 'bundler'
-Bundler::GemHelper.install_tasks
+Bundler::GemHelper.install_tasks
+
+
+require 'rake/testtask'
+Rake::TestTask.new(:test) do |t|
+  t.libs << 'test'
+  t.test_files = FileList['test/*\.rb']
+  t.verbose = true
+end
+

lib/acts_as_opengraph/helper/acts_as_opengraph_helper.rb

@@ -45,6 +45,36 @@ def like_button_for(obj, options = {})
     end
     config[:locale] ||= 'en_US'
 
+    if config[:xfbml]
+      unless @fb_sdk_included
+        content_for :javascripts, fb_javascript_include_tag( config[:locale], config[:appid] )
+      end
+      like_html = %(<fb:like href="#{CGI.escape(href)}" layout="#{config[:layout]}" show_faces="#{config[:show_faces]}" action="#{config[:action]}" colorscheme="#{config[:colorscheme]}" width="#{config[:width]}" height="#{config[:height]}" font="#{config[:font]}"></fb:like>)
+    else
+      like_html = %(<iframe src="http://www.facebook.com/plugins/like.php?href=#{CGI.escape(href)}&amp;layout=#{config[:layout]}&amp;show_faces=#{config[:show_faces]}&amp;width=#{config[:width]}&amp;action=#{config[:action]}&amp;colorscheme=#{config[:colorscheme]}&amp;height=#{config[:height]}" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:#{config[:width]}px; height:#{config[:height]}px;" allowTransparency="true"></iframe>)
+    end
+
+		like_html.respond_to?(:html_safe) ? like_html.html_safe : like_html
+  end
+
+	def comments_for(obj, options = {})
+		raise(ArgumentError.new, "You need to call acts_as_opengraph on your #{obj.class} model") unless obj.respond_to?(:opengraph_data)
+    href = options[:href] ? options[:href] : obj.opengraph_url
+    return unless href.present?
+
+		onfig = { :layout => :standard, :show_faces => false, :width => 450, :action => :like, :colorscheme => :light }
+    config.update(options) if options.is_a?(Hash)
+
+    o_layout = config[:layout].to_sym
+    if o_layout == :standard
+      config[:height] = config[:show_faces].to_s.to_sym == :true ? 80 : 35
+    elsif o_layout == :button_count
+      config[:height] = 21
+    elsif o_layout == :box_count
+      config[:height] = 65
+    end
+    config[:locale] ||= 'en_US'
+
     if config[:xfbml]
       unless @fb_sdk_included
         content_for :javascripts, fb_javascript_include_tag( config[:locale], config[:appid] )

test/opengraph_test.rb

@@ -39,7 +39,7 @@ class MovieTest < Test::Unit::TestCase
 <meta property="og:image" content="http://ia.media-imdb.com/rock.jpg"/>
 <meta property="og:url" content="#{MOVIE_URL}"/>
 <meta property="og:description" content="#{MOVIE_DESCRIPTION}"/>
-<meta property="og:site-name" content="IMDb"/>)
+<meta property="og:site_name" content="IMDb"/>)
 
   GENERATED_LIKE_BUTTON = %(<iframe src="http://www.facebook.com/plugins/like.php?href=http%3A%2F%2Fwww.imdb.com%2Ftitle%2Ftt0117500%2F&amp;layout=standard&amp;show_faces=false&amp;width=450&amp;action=like&amp;colorscheme=light&amp;height=35" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:450px; height:35px;" allowTransparency="true"></iframe>)
   GENERATED_LIKE_BUTTON_CUSTOM_URL = %(<iframe src="http://www.facebook.com/plugins/like.php?href=http%3A%2F%2Fexample.com%2Fmovies%2F6&amp;layout=standard&amp;show_faces=false&amp;width=450&amp;action=like&amp;colorscheme=light&amp;height=35" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:450px; height:35px;" allowTransparency="true"></iframe>)