"""
Test the SNTP options implementations
"""
import unittest
from ipaddress import IPv6Address
from dhcpkit.ipv6.extensions.sntp import SNTPServersOption
from dhcpkit.tests.ipv6.options import test_option
[docs]class SNTPServersOptionTestCase(test_option.OptionTestCase):
[docs] def setUp(self):
self.option_bytes = bytes.fromhex('001f0020'
'20010db8000000000000000000000001'
'20010db8000000000000000000000002')
self.option_object = SNTPServersOption(sntp_servers=[IPv6Address('2001:db8::1'),
IPv6Address('2001:db8::2')])
self.parse_option()
[docs] def test_validate_sntp_servers(self):
self.option.sntp_servers = IPv6Address('2001:db8::1')
with self.assertRaisesRegex(ValueError, 'must be a list'):
self.option.validate()
self.option.sntp_servers = ['2001:db8::1', '2001:db8::2']
with self.assertRaisesRegex(ValueError, 'IPv6 address'):
self.option.validate()
[docs] def test_bad_option_length(self):
with self.assertRaisesRegex(ValueError, 'length must be a multiple of 16'):
SNTPServersOption.parse(bytes.fromhex('001f000f20010db8000000000000000000000001'))
with self.assertRaisesRegex(ValueError, 'longer than the available buffer'):
SNTPServersOption.parse(bytes.fromhex('001f001120010db8000000000000000000000001'))
with self.assertRaisesRegex(ValueError, 'length must be a multiple of 16'):
SNTPServersOption.parse(bytes.fromhex('001f001120010db800000000000000000000000100'))
if __name__ == '__main__': # pragma: no cover
unittest.main()