Refactoring Tickets

- Tickets now independent from registration
- Implemented money gem
#419

spec/features/conference_registration_spec.rb

@@ -0,0 +1,52 @@
+require 'spec_helper'
+
+feature Registration do
+  let!(:conference) { create(:conference, registration_period: create(:registration_period, start_date: 3.days.ago)) }
+  let!(:participant) { create(:user) }
+
+  context 'as a participant' do
+    before(:each) do
+      sign_in participant
+    end
+
+    after(:each) do
+      sign_out
+    end
+
+    context 'who is already registered' do
+      let!(:registration) { create(:registration, user: participant, conference: conference) }
+
+      scenario 'updates conference registration', feature: true, js: true do
+        visit root_path
+        click_link 'Modify Registration'
+
+        expect(current_path).to eq(edit_conference_conference_registrations_path(conference.short_title))
+        click_button 'Update Registration'
+
+        expect(conference.user_registered?(participant)).to be(true)
+      end
+
+      scenario 'unregisters for a conference', feature: true, js: true do
+        visit root_path
+        click_link 'Modify Registration'
+
+        expect(current_path).to eq(edit_conference_conference_registrations_path(conference.short_title))
+        click_link 'Unregister'
+
+        expect(conference.user_registered?(participant)).to be(false)
+      end
+    end
+
+    context 'who is not registered' do
+      scenario 'registers for a conference', feature: true, js: true do
+        visit root_path
+        click_link 'Register'
+
+        expect(current_path).to eq(new_conference_conference_registrations_path(conference.short_title))
+        click_button 'Register'
+
+        expect(conference.user_registered?(participant)).to be(true)
+      end
+    end
+  end
+end