add test job

spec/jobs/update_artist_pop_points_job_spec.rb

@@ -3,5 +3,11 @@
 require 'rails_helper'
 
 RSpec.describe UpdateArtistPopPointsJob do
-  pending "add some examples to (or delete) #{__FILE__}"
+  describe 'perform_later' do
+    it 'enqueue job' do
+      ActiveJob::Base.queue_adapter = :test
+      described_class.perform_later
+      expect(described_class).to have_been_enqueued
+    end
+  end
 end