1 files changed, 25 insertions, 0 deletions
diff --git a/activerecord/test/cases/store_test.rb b/activerecord/test/cases/store_test.rb
index 6f632b4d8d..e9cdf94c99 100644
--- a/activerecord/test/cases/store_test.rb
+++ b/activerecord/test/cases/store_test.rb
@@ -163,7 +163,32 @@ class StoreTest < ActiveRecord::TestCase
     assert_equal [:width, :height], second_model.stored_attributes[:data]
   end
 
+  test "stored_attributes are tracked per subclass" do
+    first_model = Class.new(ActiveRecord::Base) do
+      store_accessor :data, :color
+    end
+    second_model = Class.new(first_model) do
+      store_accessor :data, :width, :height
+    end
+    third_model = Class.new(first_model) do
+      store_accessor :data, :area, :volume
+    end
+
+    assert_equal [:color], first_model.stored_attributes[:data]
+    assert_equal [:color, :width, :height], second_model.stored_attributes[:data]
+    assert_equal [:color, :area, :volume], third_model.stored_attributes[:data]
+  end
+
   test "YAML coder initializes the store when a Nil value is given" do
     assert_equal({}, @john.params)
   end
+
+  test "dump, load and dump again a model" do
+    dumped = YAML.dump(@john)
+    loaded = YAML.load(dumped)
+    assert_equal @john, loaded
+
+    second_dump = YAML.dump(loaded)
+    assert_equal @john, YAML.load(second_dump)
+  end
 end