5 files changed, 5 insertions, 7 deletions
diff --git a/activejob/test/cases/queue_priority_test.rb b/activejob/test/cases/queue_priority_test.rb
index ec78a402d7..b0d0e903fc 100644
--- a/activejob/test/cases/queue_priority_test.rb
+++ b/activejob/test/cases/queue_priority_test.rb
@@ -3,7 +3,7 @@ require "jobs/hello_job"
 
 class QueuePriorityTest < ActiveSupport::TestCase
   test "priority unset by default" do
-    assert_equal nil, HelloJob.priority
+    assert_nil HelloJob.priority
   end
 
   test "uses given priority" do
diff --git a/activejob/test/cases/test_helper_test.rb b/activejob/test/cases/test_helper_test.rb
index 685c93da2d..51fc6cc0c4 100644
--- a/activejob/test/cases/test_helper_test.rb
+++ b/activejob/test/cases/test_helper_test.rb
@@ -256,11 +256,11 @@ end
 
 class PerformedJobsTest < ActiveJob::TestCase
   def test_performed_enqueue_jobs_with_only_option_doesnt_leak_outside_the_block
-    assert_equal nil, queue_adapter.filter
+    assert_nil queue_adapter.filter
     perform_enqueued_jobs only: HelloJob do
       assert_equal HelloJob, queue_adapter.filter
     end
-    assert_equal nil, queue_adapter.filter
+    assert_nil queue_adapter.filter
   end
 
   def test_assert_performed_jobs
diff --git a/activejob/test/jobs/application_job.rb b/activejob/test/jobs/application_job.rb
index 4a78b890ec..a009ace51c 100644
--- a/activejob/test/jobs/application_job.rb
+++ b/activejob/test/jobs/application_job.rb
@@ -1,4 +1,2 @@
-require_relative "../support/job_buffer"
-
 class ApplicationJob < ActiveJob::Base
 end
diff --git a/activejob/test/support/integration/adapters/sneakers.rb b/activejob/test/support/integration/adapters/sneakers.rb
index 911f70407e..1c8dfaca59 100644
--- a/activejob/test/support/integration/adapters/sneakers.rb
+++ b/activejob/test/support/integration/adapters/sneakers.rb
@@ -73,7 +73,7 @@ module SneakersJobsManager
     true
   end
 
-  protected
+  private
     def bunny_publisher
       @bunny_publisher ||= begin
         p = ActiveJob::QueueAdapters::SneakersAdapter::JobWrapper.send(:publisher)
diff --git a/activejob/test/support/integration/test_case_helpers.rb b/activejob/test/support/integration/test_case_helpers.rb
index 3357489f20..41bf9c89d1 100644
--- a/activejob/test/support/integration/test_case_helpers.rb
+++ b/activejob/test/support/integration/test_case_helpers.rb
@@ -17,7 +17,7 @@ module TestCaseHelpers
     end
   end
 
-  protected
+  private
 
     def jobs_manager
       JobsManager.current_manager