Convert more API specs from controller->request style (#29004)

spec/requests/api/v1/polls/votes_spec.rb

@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'API V1 Polls Votes' do
+  let(:user)   { Fabricate(:user) }
+  let(:scopes) { 'write:statuses' }
+  let(:token)  { Fabricate(:accessible_access_token, resource_owner_id: user.id, scopes: scopes) }
+  let(:headers) { { 'Authorization' => "Bearer #{token.token}" } }
+
+  describe 'POST /api/v1/polls/:poll_id/votes' do
+    let(:poll) { Fabricate(:poll) }
+
+    before do
+      post "/api/v1/polls/#{poll.id}/votes", params: { choices: %w(1) }, headers: headers
+    end
+
+    it 'creates a vote', :aggregate_failures do
+      expect(response).to have_http_status(200)
+
+      expect(vote).to_not be_nil
+      expect(vote.choice).to eq 1
+
+      expect(poll.reload.cached_tallies).to eq [0, 1]
+    end
+
+    private
+
+    def vote
+      poll.votes.where(account: user.account).first
+    end
+  end
+end