Fix authorization of new and create in ConferenceRegistrationsController

Before authorization we need to set conference relation.
Change in proposal spec cause conference has to have valid registration
period for successful redirect to registration after confirm proposal.

spec/features/conference_registration_spec.rb

@@ -49,5 +49,16 @@ feature Registration do
         expect(conference.user_registered?(participant)).to be(true)
       end
     end
+
+    context 'registration is closed' do
+      let(:conference_with_closed_registration) { create(:conference, registration_period: create(:registration_period)) }
+
+      scenario 'registers for a conference', feature: true do
+        participant.is_admin = false
+        visit new_conference_conference_registrations_path(conference_with_closed_registration.short_title)
+        expect(current_path).to eq(root_path)
+        expect(flash).to eq 'You are not authorized to access this page.'
+      end
+    end
   end
 end

spec/features/proposal_spec.rb

@@ -2,6 +2,7 @@ require 'spec_helper'
 
 feature Event do
   let!(:conference) { create(:conference) }
+  let!(:registration_period) { create(:registration_period, conference: conference, start_date: Date.current) }
   let!(:cfp) { create(:cfp, program_id: conference.program.id) }
   let!(:organizer_role) { Role.find_by(name: 'organizer', resource: conference) }
   let!(:organizer) { create(:user, email: 'admin@example.com', role_ids: [organizer_role.id]) }
@@ -134,6 +135,7 @@ feature Event do
       click_link "confirm_proposal_#{@event.id}"
       expect(flash).
         to eq('The proposal was confirmed. Please register to attend the conference.')
+      expect(current_path).to eq(new_conference_conference_registrations_path(conference.short_title))
       @event.reload
       expect(@event.state).to eq('confirmed')
     end