1 files changed, 10 insertions, 1 deletions
diff --git a/activejob/test/cases/test_case_test.rb b/activejob/test/cases/test_case_test.rb
index 7d1702990e..0a3a20d5a0 100644
--- a/activejob/test/cases/test_case_test.rb
+++ b/activejob/test/cases/test_case_test.rb
@@ -4,11 +4,20 @@ require 'jobs/logging_job'
 require 'jobs/nested_job'
 
 class ActiveJobTestCaseTest < ActiveJob::TestCase
+  # this tests that this job class doesn't get its adapter set.
+  # that's the correct behaviour since we don't want to break
+  # the `class_attribute` inheritence
+  class TestClassAttributeInheritenceJob < ActiveJob::Base
+    def self.queue_adapter=(*)
+      raise 'Attemping to break `class_attribute` inheritence, bad!'
+    end
+  end
+
   def test_include_helper
     assert_includes self.class.ancestors, ActiveJob::TestHelper
   end
 
   def test_set_test_adapter
-    assert_equal ActiveJob::QueueAdapters::TestAdapter, self.queue_adapter
+    assert_kind_of ActiveJob::QueueAdapters::TestAdapter, self.queue_adapter
   end
 end