def test_returns_list_of_one_address_if_set(self):
address = factory.make_ip_address()
Config.objects.set_config("upstream_dns", address)
self.assertEqual([address], get_upstream_dns())
def test_returns_list_if_space_separated_ips(self):
addresses = [factory.make_ip_address() for _ in range(3)]
Config.objects.set_config("upstream_dns", " ".join(addresses))
self.assertEqual(addresses, get_upstream_dns())
def test_returns_empty_list_if_not_set(self):
self.assertEqual([], get_upstream_dns())
