def setUp(self):
self.option_bytes = bytes.fromhex('00160020'
'20010db8000000000000000000000001'
'20010db8000000000000000000000002')
self.option_object = SIPServersAddressListOption(sip_servers=[IPv6Address('2001:db8::1'),
IPv6Address('2001:db8::2')])
self.parse_option()
def __init__(self,
sip_servers: Iterable[IPv6Address],
always_send: bool = False):
option = SIPServersAddressListOption(sip_servers=sip_servers)
option.validate()
super().__init__(option, always_send=always_send)
def combine(
self, existing_options: Iterable[SIPServersAddressListOption]
) -> SIPServersAddressListOption:
"""
Combine multiple options into one.
:param existing_options: The existing options to include NTP servers from
:return: The combined option
"""
sip_servers = []
# Add from existing options first
for option in existing_options:
for sip_server in option.sip_servers:
if sip_server not in sip_servers:
sip_servers.append(sip_server)
# Then add our own
for sip_server in self.option.sip_servers:
if sip_server not in sip_servers:
sip_servers.append(sip_server)
# And return a new option with the combined addresses
return SIPServersAddressListOption(sip_servers=sip_servers)
