Fix #autolink for greenmat

Author: r7kamura

lib/qiita/markdown/greenmat/html_renderer.rb

@@ -12,8 +12,12 @@ def initialize(extensions = {})
         end
 
         # https://github.com/vmg/redcarpet/blob/v3.2.3/ext/redcarpet/html.c#L76-L116
-        def autolink(link, _link_type)
-          %(<a href="#{link}" class="autolink">#{link}</a>)
+        def autolink(link, link_type)
+          if link_type == :email
+            %(<a href="mailto:#{link}" class="autolink">#{link}</a>)
+          else
+            %(<a href="#{link}" class="autolink">#{link}</a>)
+          end
         end
 
         def header(text, level)

spec/qiita/markdown/processor_spec.rb

@@ -51,7 +51,7 @@
 
       it "replaces with mailto link" do
         should eq <<-EOS.strip_heredoc
-          <p><a href="mailto:test@example.com">test@example.com</a></p>
+          <p><a href="mailto:test@example.com" class="autolink">test@example.com</a></p>
         EOS
       end
     end