"""
Test the ServerUnicastOption implementation
"""
import unittest
from ipaddress import IPv6Address
from dhcpkit.ipv6.options import ServerUnicastOption
from dhcpkit.tests.ipv6.options import test_option
[docs]class ServerUnicastOptionTestCase(test_option.OptionTestCase):
[docs] def setUp(self):
self.option_bytes = bytes.fromhex('000c001020010db8000000000000000000000001')
self.option_object = ServerUnicastOption(IPv6Address('2001:db8::1'))
self.parse_option()
[docs] def test_server_address(self):
self.option.server_address = bytes.fromhex('20010db8000000000000000000000001')
with self.assertRaisesRegex(ValueError, 'valid IPv6 address'):
self.option.validate()
self.option.server_address = IPv6Address('2001:db8::1')
self.option.validate()
self.option.server_address = IPv6Address('::')
with self.assertRaisesRegex(ValueError, 'valid IPv6 address'):
self.option.validate()
self.option.server_address = IPv6Address('::1')
with self.assertRaisesRegex(ValueError, 'valid IPv6 address'):
self.option.validate()
self.option.server_address = IPv6Address('ff02::1')
with self.assertRaisesRegex(ValueError, 'valid IPv6 address'):
self.option.validate()
[docs] def test_bad_option_length(self):
with self.assertRaisesRegex(ValueError, 'must have length 16'):
ServerUnicastOption.parse(bytes.fromhex('000c000f'))
with self.assertRaisesRegex(ValueError, 'must have length 16'):
ServerUnicastOption.parse(bytes.fromhex('000c0011'))
if __name__ == '__main__': # pragma: no cover
unittest.main()