def test_change_registration_id_for_node(self):
registry = DeviceRegistry(self.file_name)
registry.save_device_registration(self.node_id, self.registration_id)
registry.save_device_registration('node_id_2', 'registration_id_2')
registry.save_device_registration('node_id_3', 'registration_id_3')
new_registration_id = 'new_registration_id'
registry.change_registration_id_for_node(
self.node_id, new_registration_id)
reader = csv.reader(open(self.file_name, 'r'), csv.excel)
for row in reader:
self.assertEqual(self.node_id, row[0])
self.assertEqual(new_registration_id, row[1])
break
