fix missing disqus_identifier, add disqus spec

lib/awestruct/extensions/disqus.rb

@@ -53,8 +53,6 @@ def disqus_comments_count()
           }
         end
 
-        private
-
         def resolve_disqus_identifier()
           self.disqus_identifier ? self.disqus_identifier : Digest::SHA1.hexdigest(self.date.strftime('%Y-%m-%d-') + self.slug)
         end

spec/disqus_spec.rb

@@ -0,0 +1,42 @@
+require 'awestruct/page'
+require 'awestruct/extensions/disqus'
+
+describe Awestruct::Extensions::Disqus do
+
+  before :all do
+    @site = Awestruct::AStruct.new :encoding=>false, :disqus=>'spec', :base_url=>'http://example.org'
+    @disqus = Awestruct::Extensions::Disqus.new 
+  end
+
+  before :each do
+    @page = Awestruct::Page.new @site
+    @page.date = Time.utc(2012,12,8)
+    @page.slug = 'spec-post'
+    @page.url = '/posts/2012/12/08/spec-post/'
+    @site.pages = [@page]
+    @disqus.execute(@site)
+  end
+
+  it "should assign the disqus short name" do
+    @page.disqus_comments().should match(/var disqus_shortname = '#{@site.disqus}';/) 
+    @page.disqus_comments_count().should match(/var disqus_shortname = '#{@site.disqus}';/) 
+  end
+
+  it "should generate an identifier if necessary when id generation is enabled" do
+    @site.disqus_generate_id = true
+    @page.disqus_comments().should match(/var disqus_identifier = "12bb52d0776930e01e9a410fd14f13382778e449";/)
+    @page.disqus_comments_link().should match(/ data-disqus-identifier="12bb52d0776930e01e9a410fd14f13382778e449"/)
+  end
+
+  it "should use the identifier specified in the page" do
+    @page.disqus_identifier = @page.slug
+    @page.disqus_comments().should match(/var disqus_identifier = "#{@page.disqus_identifier}";/)
+    @page.disqus_comments_link().should match(/ data-disqus-identifier="#{@page.disqus_identifier}"/)
+  end
+
+  it "should have a null identifier if no identifier is specified and id generation is disabled" do
+    @page.disqus_comments().should match(/var disqus_identifier = null;/)
+    @page.disqus_comments_link().should_not match(/ data-disqus-identifier=/)
+  end
+
+end