bug fixes + tests

app/logical/post_sets/similar.rb

@@ -1,19 +1,20 @@
 module PostSets
   class Similar < PostSets::Post
     def initialize(post)
-      super(tags)
+      super("")
+      @post = post
     end
 
     def posts
       @posts ||= begin
-        post_ids, scores = RecommenderService.similar(post)
-        post_ids = post_ids.reject {|x| x == post.id}.slice(0, 5)
-        Post.find(post_ids)
+        response = RecommenderService.similar(@post)
+        post_ids = response.reject {|x| x[0] == @post.id}.slice(0, 5).map {|x| x[0]}
+        ::Post.find(post_ids)
       end
     end
 
     def presenter
-      ::Presenters::PostSetPresenters::Post.new(self)
+      ::PostSetPresenters::Post.new(self)
     end
   end
 end