# frozen_string_literal: true require 'spec_helper' describe Vote do let!(:vote) { create(:vote) } describe 'validation' do it { is_expected.to validate_uniqueness_of(:user_id).scoped_to(:event_id) } # This is testing the relationship instead of using the shoulda-matchers context 'vote with user already exists' do it 'fails when adding vote twice for user and event' do expect { create(:vote, user: vote.user, event: vote.event) } .to raise_error(ActiveRecord::RecordInvalid, 'Validation failed: User has already been taken') end end end end