Implement pending tests (#11415)

spec/models/poll_vote_spec.rb

@@ -1,5 +1,13 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 RSpec.describe PollVote, type: :model do
-  pending "add some examples to (or delete) #{__FILE__}"
+  describe '#object_type' do
+    let(:poll_vote) { Fabricate.build(:poll_vote) }
+
+    it 'returns :vote' do
+      expect(poll_vote.object_type).to eq :vote
+    end
+  end
 end