Ensure correct filter order to validate with our markdown spec

lib/banzai/filter/gollum_tags_filter.rb

@@ -118,7 +118,7 @@ module Banzai
         end
 
         if path
-          content_tag(:img, nil, src: path)
+          content_tag(:img, nil, src: path, class: tag_class('image'))
         end
       end
 
@@ -155,7 +155,7 @@ module Banzai
           href = ::File.join(project_wiki_base_path, reference)
         end
 
-        content_tag(:a, name || reference, href: href)
+        content_tag(:a, name || reference, href: href, class: tag_class('page'))
       end
 
       def project_wiki
@@ -172,6 +172,10 @@ module Banzai
       def validate
         needs :project_wiki
       end
+
+      def tag_class(type)
+        "gfm gollum gollum-#{type}"
+      end
     end
   end
 end

lib/banzai/pipeline/wiki_pipeline.rb

@@ -4,7 +4,7 @@ module Banzai
       def self.filters
         @filters ||= begin
           super.insert_after(Filter::TableOfContentsFilter, Filter::GollumTagsFilter)
-               .insert_after(Filter::TableOfContentsFilter, Filter::WikiLinkFilter)
+               .insert_before(Filter::TaskListFilter, Filter::WikiLinkFilter)
         end
       end
     end

spec/features/markdown_spec.rb

@@ -39,7 +39,7 @@ describe 'GitLab Markdown', feature: true do
   end
 
   def doc(html = @html)
-    Nokogiri::HTML::DocumentFragment.parse(html)
+    @doc ||= Nokogiri::HTML::DocumentFragment.parse(html)
   end
 
   # Shared behavior that all pipelines should exhibit