bug fixes + tests

app/assets/stylesheets/specific/posts.scss

@@ -324,6 +324,10 @@ div#c-posts {
       font-weight: bold;
     }
 
+    .similar-posts {
+      margin-top: 1em;
+    }
+
     #add-fav-button, #remove-fav-button {
       margin-top: 1em;
     }

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

app/views/posts/partials/index/_similar.html.erb

@@ -1,7 +1,7 @@
-<div class="recent-posts">
-  <p>You might also like:</p>
+<div class="similar-posts">
+  <p><em>You might also like:</em></p>
 
-  <div>
+  <section>
     <%= PostSets::Similar.new(post).presenter.post_previews_html(self) %>
-  </div>
+  </section>
 </div>

test/functional/posts_controller_test.rb

@@ -115,6 +115,22 @@ class PostsControllerTest < ActionDispatch::IntegrationTest
         get post_path(@post), params: {:id => @post.id}
         assert_response :success
       end
+
+      context "when the recommend service is enabled" do
+        setup do
+          @post2 = create(:post)
+          RecommenderService.stubs(:enabled?).returns(true)
+          RecommenderService.stubs(:available?).returns(true)
+          RecommenderService.stubs(:similar).returns([[@post.id, "1.0"], [@post2.id, "0.01"]])
+        end
+
+        should "render a section for similar posts" do
+          get_auth post_path(@post), @user
+          assert_response :success
+          assert_select ".similar-posts"
+          assert_select ".similar-posts #post_#{@post2.id}"
+        end
+      end
     end
 
     context "update action" do