Add test of voting

spec/factories/users.rb

@@ -50,6 +50,16 @@ FactoryBot.define do
       end
     end
 
+    factory :cfp_user do
+      transient do
+        resource { create(:resource) }
+      end
+
+      after :create do |user, evaluator|
+        user.add_role :cfp, evaluator.resource
+      end
+    end
+
     trait :disabled do
       is_disabled { true }
     end

spec/features/voting_spec.rb

@@ -0,0 +1,59 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+def have_rating(rating, max)
+  have_selector('.rating.bright', count: rating)
+    .and have_selector('.rating:not(.bright)', count: max - rating)
+end
+
+def cast_vote(rating, before:, after:)
+  # Index shows existing rating but not user’s vote
+  visit admin_conference_program_events_path(conference.short_title)
+  within("#event-#{event.id}") do
+    expect(page).to have_rating(before, 5)
+    expect(page).to have_text('Not rated')
+  end
+
+  # Event page shows existing rating but not user’s vote
+  click_on event.title
+  within('tr', text: 'Rating') { expect(page).to have_rating(before, 5) }
+  within('tr', text: 'Your vote') { expect(page).to have_rating(0, 5) }
+
+  # Voting dynamically updates the page
+  within('tr', text: 'Your vote') { page.find(".rating:nth-of-type(#{rating})").click }
+  within('tr', text: 'Rating') { expect(page).to have_rating(after, 5) }
+  within('tr', text: 'Your vote') { expect(page).to have_rating(rating, 5) }
+
+  # Index shows updated rating and vote
+  visit admin_conference_program_events_path(conference.short_title)
+  within("#event-#{event.id}") do
+    expect(page).to have_rating(after, 5)
+    expect(page).to have_text("You voted: #{rating}/5")
+  end
+
+  # Re-rendered event page shows updated rating and vote
+  click_on event.title
+  within('tr', text: 'Rating') { expect(page).to have_rating(after, 5) }
+  within('tr', text: 'Your vote') { expect(page).to have_rating(rating, 5) }
+end
+
+feature 'Voting' do
+  let(:conference) { create(:conference) }
+  let!(:event) { create(:event, program: conference.program) }
+  let(:voter1) { create(:cfp_user, resource: conference) }
+  let(:voter2) { create(:cfp_user, resource: conference) }
+
+  before :each do
+    conference.program.update_attribute :rating, 5
+  end
+
+  scenario 'multiple users casting votes', feature: true, js: true do
+    sign_in voter1
+    cast_vote 3, before: 0, after: 3
+    sign_out
+
+    sign_in voter2
+    cast_vote 5, before: 3, after: 4
+  end
+end