add a test for what marc has been trying to do

test/test_database.py

@@ -390,5 +390,29 @@ def test_auto_ref_and_deref(self):
         self.assertEqual(db.test.c.find_one()["another test"], b)
         self.assertEqual(db.test.c.find_one(), c)
 
+    # some stuff the user marc wanted to be able to do, make sure it works
+    def test_marc(self):
+        db = self.connection.pymongo_test
+        db.add_son_manipulator(AutoReference(db))
+        db.add_son_manipulator(NamespaceInjector())
+
+        db.drop_collection("users")
+        db.drop_collection("messages")
+
+        message_1 = {"title": "foo"}
+        db.messages.save(message_1)
+        message_2 = {"title": "bar"}
+        db.messages.save(message_2)
+
+        user = {"name": "marc",
+                "messages": [message_1, message_2]}
+        db.users.save(user)
+
+        message = db.messages.find_one()
+        db.messages.update(message, {"title": "buzz"})
+
+        self.assertEqual("buzz", db.users.find_one()["messages"][0]["title"])
+        self.assertEqual("bar", db.users.find_one()["messages"][1]["title"])
+
 if __name__ == "__main__":
     unittest.main()