move profile_background from User to UserProfile

spec/controllers/users_controller_spec.rb

@@ -1169,7 +1169,7 @@ describe UsersController do
           xhr :post, :upload_user_image, username: user.username, file: user_image, user_image_type: "profile_background"
           user.reload
 
-          user.profile_background.should == "/uploads/default/1/1234567890123456.png"
+          user.user_profile.profile_background.should == "/uploads/default/1/1234567890123456.png"
 
           # returns the url, width and height of the uploaded image
           json = JSON.parse(response.body)
@@ -1218,7 +1218,7 @@ describe UsersController do
             Upload.expects(:create_for).returns(upload)
             xhr :post, :upload_user_image, username: user.username, file: user_image_url, user_image_type: "profile_background"
             user.reload
-            user.profile_background.should == "/uploads/default/1/1234567890123456.png"
+            user.user_profile.profile_background.should == "/uploads/default/1/1234567890123456.png"
 
             # returns the url, width and height of the uploaded image
             json = JSON.parse(response.body)
@@ -1287,7 +1287,7 @@ describe UsersController do
 
       it 'it successful' do
         xhr :put, :clear_profile_background, username: user.username
-        user.reload.profile_background.should == ""
+        user.reload.user_profile.profile_background.should == ""
         response.should be_success
       end
 

spec/serializers/user_serializer_spec.rb

@@ -32,6 +32,16 @@ describe UserSerializer do
       end
     end
 
+    context "with filled out profile background" do
+      before do
+        user.user_profile.profile_background = 'http://background.com'
+      end
+
+      it "has a profile background" do
+        expect(json[:profile_background]).to eq 'http://background.com'
+      end
+    end
+
     context "with filled out website" do
       before do
         user.user_profile.website = 'http://example.com'