1 files changed, 14 insertions, 0 deletions
diff --git a/activerecord/test/cases/inclusion_test.rb b/activerecord/test/cases/inclusion_test.rb
index 4b3320cf04..374e4e01d3 100644
--- a/activerecord/test/cases/inclusion_test.rb
+++ b/activerecord/test/cases/inclusion_test.rb
@@ -74,6 +74,20 @@ class InclusionUnitTest < ActiveRecord::TestCase
   def test_included_twice
     @klass.send :include, ActiveRecord::Model
   end
+
+  def test_deprecation_proxy
+    assert_equal ActiveRecord::Model.name, ActiveRecord::Model::DeprecationProxy.name
+    assert_equal ActiveRecord::Base.superclass, assert_deprecated { ActiveRecord::Model::DeprecationProxy.superclass }
+
+    sup = nil
+    ActiveSupport.on_load(:__test_active_record_model_deprecation) do
+      sup = superclass
+    end
+    assert_deprecated do
+      ActiveSupport.run_load_hooks(:__test_active_record_model_deprecation, ActiveRecord::Model::DeprecationProxy)
+    end
+    assert_equal ActiveRecord::Base.superclass, sup
+  end
 end
 
 class InclusionFixturesTest < ActiveRecord::TestCase