fixes #2327

test/unit/sources/pixiv_test.rb

@@ -79,6 +79,11 @@ module Sources
           assert_contains(pixiv_links, /search\.php/)
         end
 
+        should "get the artist commentary" do
+          assert_not_nil(@site.artist_commentary_title)
+          assert_not_nil(@site.artist_commentary_desc)
+        end
+
         should "convert a page into a json representation" do
           assert_nothing_raised do
             @site.to_json

test/unit/sources/twitter_test.rb

@@ -44,6 +44,10 @@ module Sources
         assert_equal([], @site.tags)
       end
 
+      should "get the artist commentary" do
+        assert_not_nil(@site.artist_commentary_desc)
+      end
+
       should "convert a page into a json representation" do
         assert_nothing_raised do
           @site.to_json