use active job test queue adapter in rspec

config/environments/test.rb

@@ -44,6 +44,7 @@ Rails.application.configure do
   # The :test delivery method accumulates sent emails in the
   # ActionMailer::Base.deliveries array.
   config.action_mailer.delivery_method = :test
+  config.active_job.queue_adapter = :test
 
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr