1 files changed, 1 insertions, 5 deletions
diff --git a/activerecord/test/cases/attribute_methods_test.rb b/activerecord/test/cases/attribute_methods_test.rb
index 0327e5aea8..12e5715710 100644
--- a/activerecord/test/cases/attribute_methods_test.rb
+++ b/activerecord/test/cases/attribute_methods_test.rb
@@ -686,17 +686,13 @@ class AttributeMethodsTest < ActiveRecord::TestCase
 
   private
   def cached_columns
-    @cached_columns ||= (time_related_columns_on_topic + serialized_columns_on_topic).map(&:name)
+    @cached_columns ||= time_related_columns_on_topic.map(&:name)
   end
 
   def time_related_columns_on_topic
     Topic.columns.select { |c| c.type.in?([:time, :date, :datetime, :timestamp]) }
   end
 
-  def serialized_columns_on_topic
-    Topic.columns.select { |c| Topic.serialized_attributes.include?(c.name) }
-  end
-
   def in_time_zone(zone)
     old_zone  = Time.zone
     old_tz    = ActiveRecord::Base.time_zone_aware_attributes