diff --git a/activejob/test/integration/queuing_test.rb b/activejob/test/integration/queuing_test.rb
index e435ed4aa6..d8425c9706 100644
--- a/activejob/test/integration/queuing_test.rb
+++ b/activejob/test/integration/queuing_test.rb
@@ -78,7 +78,7 @@ class QueuingTest < ActiveSupport::TestCase
       TestJob.perform_later @id
       wait_for_jobs_to_finish_for(5.seconds)
       assert job_executed
-      assert_equal 'de', job_output
+      assert_equal 'de', job_executed_in_locale
     ensure
       I18n.available_locales = [:en]
       I18n.locale = :en
diff --git a/activejob/test/support/integration/dummy_app_template.rb b/activejob/test/support/integration/dummy_app_template.rb
index 0c062a025e..262ca72327 100644
--- a/activejob/test/support/integration/dummy_app_template.rb
+++ b/activejob/test/support/integration/dummy_app_template.rb
@@ -18,8 +18,11 @@ class TestJob < ActiveJob::Base
   queue_as :integration_tests
 
   def perform(x)
-    File.open(Rails.root.join("tmp/\#{x}"), "w+") do |f|
-      f.write I18n.locale
+    File.open(Rails.root.join("tmp/\#{x}"), "wb+") do |f|
+      f.write Marshal.dump({
+        "locale" => I18n.locale.to_s || "en",
+        "executed_at" => Time.now.to_r
+      })
     end
   end
 end
diff --git a/activejob/test/support/integration/test_case_helpers.rb b/activejob/test/support/integration/test_case_helpers.rb
index 8319d09520..9897f76fd0 100644
--- a/activejob/test/support/integration/test_case_helpers.rb
+++ b/activejob/test/support/integration/test_case_helpers.rb
@@ -42,15 +42,23 @@ module TestCaseHelpers
       end
     end
 
+    def job_file(id)
+      Dummy::Application.root.join("tmp/#{id}")
+    end
+
     def job_executed(id=@id)
-      Dummy::Application.root.join("tmp/#{id}").exist?
+      job_file(id).exist?
+    end
+
+    def job_data(id)
+      Marshal.load(File.binread(job_file(id)))
     end
 
     def job_executed_at(id=@id)
-      File.new(Dummy::Application.root.join("tmp/#{id}")).ctime
+      job_data(id)["executed_at"]
     end
 
-    def job_output
-      File.read Dummy::Application.root.join("tmp/#{@id}")
+    def job_executed_in_locale(id=@id)
+      job_data(id)["locale"]
     end
 end