diff --git a/activerecord/lib/active_record/test_case.rb b/activerecord/lib/active_record/test_case.rb
index <HASH>..<HASH> 100644
--- a/activerecord/lib/active_record/test_case.rb
+++ b/activerecord/lib/active_record/test_case.rb
@@ -1,3 +1,7 @@
+require 'active_support/deprecation'
+require 'active_support/test_case'
+
+ActiveSupport::Deprecation.warn('ActiveRecord::TestCase is deprecated, please use ActiveSupport::TestCase')
 module ActiveRecord
   # = Active Record Test Case
   #
deprecated AR::TestCase in favor of AS::TestCase