py-libp2p/tests/host/test_routed_host.py

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import asyncio
import pytest
from libp2p.host.exceptions import ConnectionFailure
from libp2p.peer.peerinfo import PeerInfo
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from libp2p.routing.kademlia.kademlia_peer_router import peer_info_to_str
from libp2p.tools.utils import (
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set_up_nodes_by_transport_and_disc_opt,
set_up_nodes_by_transport_opt,
set_up_routers,
)
@pytest.mark.asyncio
async def test_host_routing_success():
routers = await set_up_routers()
transports = [["/ip4/127.0.0.1/tcp/0"], ["/ip4/127.0.0.1/tcp/0"]]
transport_disc_opt_list = zip(transports, routers)
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(host_a, host_b) = await set_up_nodes_by_transport_and_disc_opt(
transport_disc_opt_list
)
# Set routing info
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await routers[0].server.set(
host_a.get_id().xor_id,
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peer_info_to_str(PeerInfo(host_a.get_id(), host_a.get_addrs())),
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)
await routers[1].server.set(
host_b.get_id().xor_id,
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peer_info_to_str(PeerInfo(host_b.get_id(), host_b.get_addrs())),
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)
# forces to use routing as no addrs are provided
await host_a.connect(PeerInfo(host_b.get_id(), []))
await host_b.connect(PeerInfo(host_a.get_id(), []))
# Clean up
await asyncio.gather(*[host_a.close(), host_b.close()])
routers[0].server.stop()
routers[1].server.stop()
@pytest.mark.asyncio
async def test_host_routing_fail():
routers = await set_up_routers()
transports = [["/ip4/127.0.0.1/tcp/0"], ["/ip4/127.0.0.1/tcp/0"]]
transport_disc_opt_list = zip(transports, routers)
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(host_a, host_b) = await set_up_nodes_by_transport_and_disc_opt(
transport_disc_opt_list
)
host_c = (await set_up_nodes_by_transport_opt([["/ip4/127.0.0.1/tcp/0"]]))[0]
# Set routing info
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await routers[0].server.set(
host_a.get_id().xor_id,
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peer_info_to_str(PeerInfo(host_a.get_id(), host_a.get_addrs())),
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)
await routers[1].server.set(
host_b.get_id().xor_id,
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peer_info_to_str(PeerInfo(host_b.get_id(), host_b.get_addrs())),
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)
# routing fails because host_c does not use routing
with pytest.raises(ConnectionFailure):
await host_a.connect(PeerInfo(host_c.get_id(), []))
with pytest.raises(ConnectionFailure):
await host_b.connect(PeerInfo(host_c.get_id(), []))
# Clean up
await asyncio.gather(*[host_a.close(), host_b.close(), host_c.close()])
routers[0].server.stop()
routers[1].server.stop()