Review

app/models/posting.rb

@@ -11,6 +11,7 @@ def article_with_image
     return "#{figure_start}_#{figure_end}" if figure_start.nil? || figure_end.nil?
 
     image_tags = body[figure_start...figure_end + 9]
+    # Avoid using magic numbers. 9 should be a constant with explanatory name
     return 'not include <img' unless image_tags.include?('<img')
 
     posting_image_params(image_tags)
@@ -26,9 +27,14 @@ def posting_image_params(html)
       data = tag_parse.(html, attribute)
       unless data.nil?
         tag_attributes[attribute] = data[1] unless data.size < 2
+        # Avoid using magic numbers. 2 should be a constant with explanatory name
       end
     end
     # tag_parse
     tag_attributes
   end
-end
+end
+
+# In case if article contains the image, its snippet should contain image above the body -- was implemented. 
+
+# Doesn't handle the case when article has multiple images

specs/posting_spec.rb

@@ -31,4 +31,8 @@
       expect(posting.article_with_image).to eq(response)
     end
   end
-end
+end
+
+# missing case when posting body has no figure tag
+# missing case when posting body has no image tag
+# would be great to have test for covering the case of multiple images in the posting