def test_randomises(self):
self.assertNotEqual(make_dhcp_transaction_id(),
make_dhcp_transaction_id())
def test_init_sets_transaction_id(self):
transaction_id = make_dhcp_transaction_id()
self.patch(detect_module,
"make_dhcp_transaction_id").return_value = transaction_id
discover = DHCPDiscoverPacket(factory.make_mac_address())
self.assertEqual(transaction_id, discover.transaction_id)
def test_produces_well_formed_id(self):
# The DHCP transaction ID should be 4 bytes long.
transaction_id = make_dhcp_transaction_id()
self.assertIsInstance(transaction_id, bytes)
self.assertEqual(4, len(transaction_id))