diff --git a/bindings/Sofa/tests/Core/BaseData.py b/bindings/Sofa/tests/Core/BaseData.py
index d594e3e3..f2bdbdb5 100644
--- a/bindings/Sofa/tests/Core/BaseData.py
+++ b/bindings/Sofa/tests/Core/BaseData.py
@@ -408,3 +408,9 @@ def test_readOnly(self):
         self.assertFalse(data.isReadOnly())
         data.setReadOnly(True)
         self.assertTrue(data.isReadOnly())
+
+    def test_DownCast(self):
+        root = Sofa.Core.Node('root')
+        self.assertEqual(type(root.name), Sofa.Core.DataString)
+        self.assertEqual(type(root.gravity), Sofa.Core.DataContainer)
+        self.assertEqual(type(root.dt), Sofa.Core.Data)