81     def _write_test_data(self, root_key, CreateKey=CreateKey):  argument
83         SetValue(root_key, test_key_name, REG_SZ, "Default value")
84         key = CreateKey(root_key, test_key_name)
121     def _read_test_data(self, root_key, OpenKey=OpenKey):  argument
123         val = QueryValue(root_key, test_key_name)
127         key = OpenKey(root_key, test_key_name)
161     def _delete_test_data(self, root_key):  argument
162         key = OpenKey(root_key, test_key_name, 0, KEY_ALL_ACCESS)
183         DeleteKey(root_key, test_key_name)
186             key = OpenKey(root_key, test_key_name)
191     def _test_all(self, root_key):  argument
192         self._write_test_data(root_key)
193         self._read_test_data(root_key)
194         self._delete_test_data(root_key)