Fix failing test, TestQueue#contents is not #jobs

railties/lib/rails/queueing.rb

 module Rails
   module Queueing
     # In test mode, the Rails queue is backed by an Array so that assertions
-    # can be made about its contents. The test queue provides a +contents+
+    # can be made about its contents. The test queue provides a +jobs+
     # method to make assertions about the queue's contents and a +drain+
     # method to drain the queue and run the jobs.
     #

railties/test/application/queue_test.rb

@@ -78,7 +78,7 @@ def run
         Rails.queue.push job
       end
 
-      assert_equal jobs, Rails.queue.contents
+      assert_equal jobs, Rails.queue.jobs
     end
 
     test "a custom queue implementation can be provided" do