repair code reviews

spec/models/conference_spec.rb

@@ -1585,11 +1585,12 @@ describe Conference do
   end
 
   describe 'after_create' do
-    let!(:conference) { create(:conference) }
+    let(:conference) { Conference.new(title: 'ABC', short_title: 'XYZ', start_date: Date.today, end_date: Date.today + 10, timezone: 'GMT') }
 
-    it 'creates free tickets' do
+    it 'calls back to create free ticket' do
+      conference.save
+      conference.run_callbacks :create
       free_ticket = conference.tickets.first
-      expect(free_ticket).not_to be_nil
       expect(free_ticket.price_cents).to eq(0)
     end
   end