Test `ShareWorker`'s handling of deleted records

spec/workers/share_worker_spec.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe ShareWorker do
+  let(:user) { FactoryBot.create(:user) }
+  let(:answer) { FactoryBot.create(:answer, user: user) }
+
+  describe "#perform" do
+    subject { ShareWorker.new.perform(user.id, answer.id, 'twitter') }
+
+    before do
+      Service.create!(type: 'Services::Twitter',
+                      user: user)
+    end
+
+    context 'when answer doesn\'t exist' do
+      it 'prevents the job from retrying and logs a message' do
+        answer.destroy!
+        Sidekiq.logger.should_receive(:info)
+        subject
+        expect(ShareWorker.jobs.size).to eq(0)
+      end
+    end
+  end
+end