py-libp2p/libp2p/tools/utils.py
Chih Cheng Liang bcd7890124
Move test utilities to tools (#356)
* move test factories to libp2p/tools

* remove unused inits

* move pubsub test utils to tools

* cleanup test_interop

* fix typing libp2p/tools/utils

* add typing to pubsub utils

* fix factories typing

* fix typing for floodsub_integration_test_settings

* fix rest of the typing

* fix isort
2019-11-21 11:47:54 +08:00

98 lines
3.3 KiB
Python

from typing import List, Sequence, Tuple
import multiaddr
from libp2p import new_node
from libp2p.host.basic_host import BasicHost
from libp2p.host.host_interface import IHost
from libp2p.kademlia.network import KademliaServer
from libp2p.network.stream.net_stream_interface import INetStream
from libp2p.network.swarm import Swarm
from libp2p.peer.peerinfo import info_from_p2p_addr
from libp2p.routing.interfaces import IPeerRouting
from libp2p.routing.kademlia.kademlia_peer_router import KadmeliaPeerRouter
from libp2p.typing import StreamHandlerFn, TProtocol
from .constants import MAX_READ_LEN
async def connect_swarm(swarm_0: Swarm, swarm_1: Swarm) -> None:
peer_id = swarm_1.get_peer_id()
addrs = tuple(
addr
for transport in swarm_1.listeners.values()
for addr in transport.get_addrs()
)
swarm_0.peerstore.add_addrs(peer_id, addrs, 10000)
await swarm_0.dial_peer(peer_id)
assert swarm_0.get_peer_id() in swarm_1.connections
assert swarm_1.get_peer_id() in swarm_0.connections
async def connect(node1: IHost, node2: IHost) -> None:
"""Connect node1 to node2."""
addr = node2.get_addrs()[0]
info = info_from_p2p_addr(addr)
await node1.connect(info)
async def set_up_nodes_by_transport_opt(
transport_opt_list: Sequence[Sequence[str]]
) -> Tuple[BasicHost, ...]:
nodes_list = []
for transport_opt in transport_opt_list:
node = await new_node(transport_opt=transport_opt)
await node.get_network().listen(multiaddr.Multiaddr(transport_opt[0]))
nodes_list.append(node)
return tuple(nodes_list)
async def set_up_nodes_by_transport_and_disc_opt(
transport_disc_opt_list: Sequence[Tuple[Sequence[str], IPeerRouting]]
) -> Tuple[BasicHost, ...]:
nodes_list = []
for transport_opt, disc_opt in transport_disc_opt_list:
node = await new_node(transport_opt=transport_opt, disc_opt=disc_opt)
await node.get_network().listen(multiaddr.Multiaddr(transport_opt[0]))
nodes_list.append(node)
return tuple(nodes_list)
async def set_up_routers(
router_confs: Tuple[int, int] = (0, 0)
) -> List[KadmeliaPeerRouter]:
"""The default ``router_confs`` selects two free ports local to this
machine."""
bootstrap_node = KademliaServer() # type: ignore
await bootstrap_node.listen(router_confs[0])
routers = [KadmeliaPeerRouter(bootstrap_node)]
for port in router_confs[1:]:
node = KademliaServer() # type: ignore
await node.listen(port)
await node.bootstrap_node(bootstrap_node.address)
routers.append(KadmeliaPeerRouter(node))
return routers
async def echo_stream_handler(stream: INetStream) -> None:
while True:
read_string = (await stream.read(MAX_READ_LEN)).decode()
resp = "ack:" + read_string
await stream.write(resp.encode())
async def perform_two_host_set_up(
handler: StreamHandlerFn = echo_stream_handler
) -> Tuple[BasicHost, BasicHost]:
transport_opt_list = [["/ip4/127.0.0.1/tcp/0"], ["/ip4/127.0.0.1/tcp/0"]]
(node_a, node_b) = await set_up_nodes_by_transport_opt(transport_opt_list)
node_b.set_stream_handler(TProtocol("/echo/1.0.0"), handler)
# Associate the peer with local ip address (see default parameters of Libp2p())
node_a.get_peerstore().add_addrs(node_b.get_id(), node_b.get_addrs(), 10)
return node_a, node_b