1 files changed, 18 insertions, 0 deletions
diff --git a/activerecord/test/aggregations_test.rb b/activerecord/test/aggregations_test.rb
index 89927e5044..299e0484e3 100644
--- a/activerecord/test/aggregations_test.rb
+++ b/activerecord/test/aggregations_test.rb
@@ -108,3 +108,21 @@ class AggregationsTest < Test::Unit::TestCase
     assert_equal nil, customers(:david).gps_location
   end
 end
+
+class OverridingAggregationsTest < Test::Unit::TestCase
+  class Name; end
+  class DifferentName; end
+
+  class Person   < ActiveRecord::Base
+    composed_of :composed_of, :mapping => %w(person_first_name first_name)
+  end
+
+  class DifferentPerson < Person
+    composed_of :composed_of, :class_name => 'DifferentName', :mapping => %w(different_person_first_name first_name)
+  end
+
+  def test_composed_of_aggregation_redefinition_reflections_should_differ_and_not_inherited
+    assert_not_equal Person.reflect_on_aggregation(:composed_of),
+                     DifferentPerson.reflect_on_aggregation(:composed_of)
+  end
+end