Fix polls not being validated on edition (#33755)

spec/validators/poll_expiration_validator_spec.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe PollExpirationValidator do
+  describe '#validate' do
+    before do
+      validator.validate(poll)
+    end
+
+    let(:validator) { described_class.new }
+    let(:poll) { instance_double(Poll, options: options, expires_at: expires_at, errors: errors) }
+    let(:errors) { instance_double(ActiveModel::Errors, add: nil) }
+    let(:options) { %w(foo bar) }
+    let(:expires_at) { 1.day.from_now }
+
+    it 'has no errors' do
+      expect(errors).to_not have_received(:add)
+    end
+
+    context 'when the poll expires in 5 min from now' do
+      let(:expires_at) { 5.minutes.from_now }
+
+      it 'has no errors' do
+        expect(errors).to_not have_received(:add)
+      end
+    end
+
+    context 'when the poll expires in the past' do
+      let(:expires_at) { 5.minutes.ago }
+
+      it 'has errors' do
+        expect(errors).to have_received(:add)
+      end
+    end
+  end
+end