tractor/tests/ipc/test_server_tunnel_boundary.py

60 lines
1.6 KiB
Python

'''
Tunnel annotation peeling at the inbound IPC transport boundary.
'''
from __future__ import annotations
import trio
from tractor.discovery import (
TunnelledAddress,
WGTunnelSpec,
tunnels_of,
)
from tractor.ipc._server import open_ipc_server
from tractor.ipc._tcp import TCPAddress
_PUBKEY: str = 'g3x7z0AdV1rM6UQU22CC7IL3/ivn4DzrE7ikDhCZ/Dc='
def test_server_peels_before_endpoint_construction():
'''
`Endpoint.start_listener()` reflects on its address's declaring
module, so retaining a tunnel wrapper there selects `._tunnel`
instead of the TCP backend. Start a real listener from the
wrapper, assert the resulting `Endpoint` contains only a resolved
`TCPAddress`, and prove the original declaration still carries
its tunnel spec for the future bindspace lifecycle.
'''
overlay = TCPAddress('127.0.0.1', 0)
tunnelled = TunnelledAddress(
overlay=overlay,
tunnel=WGTunnelSpec(
peer_pubkey=_PUBKEY,
bearer=('192.168.1.50', 51820),
),
)
async def main() -> None:
async with open_ipc_server() as server:
eps = await server.listen_on(
accept_addrs=[tunnelled],
)
assert len(eps) == 1
endpoint = eps[0]
assert type(endpoint.addr) is TCPAddress
host, port = endpoint.addr.unwrap()
assert host == overlay.unwrap()[0]
assert port > 0
assert endpoint.addr is not tunnelled
assert tunnels_of(tunnelled) == (
tunnelled.tunnel,
)
server.cancel()
trio.run(main)