1 files changed, 3 insertions, 4 deletions
diff --git a/activerecord/test/cases/serialization_test.rb b/activerecord/test/cases/serialization_test.rb
index ce167509c1..10d8ccc711 100644
--- a/activerecord/test/cases/serialization_test.rb
+++ b/activerecord/test/cases/serialization_test.rb
@@ -53,9 +53,8 @@ class SerializationTest < ActiveRecord::TestCase
   end
 
   def test_serialized_attributes_are_class_level_settings
-    assert_raise NoMethodError do
-      topic = Topic.new
-      topic.serialized_attributes = []
-    end
+    topic = Topic.new
+    assert_raise(NoMethodError) { topic.serialized_attributes = [] }
+    assert_deprecated { topic.serialized_attributes }
   end
 end