385 lines
11 KiB
Python
385 lines
11 KiB
Python
import asyncio
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import random
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import pytest
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from tests.utils import cleanup, connect
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from .configs import GossipsubParams
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from .utils import dense_connect, one_to_all_connect
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@pytest.mark.parametrize(
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"num_hosts, gossipsub_params",
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((4, GossipsubParams(degree=4, degree_low=3, degree_high=5)),),
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)
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@pytest.mark.asyncio
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async def test_join(num_hosts, hosts, pubsubs_gsub):
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gossipsubs = tuple(pubsub.router for pubsub in pubsubs_gsub)
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hosts_indices = list(range(num_hosts))
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topic = "test_join"
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central_node_index = 0
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# Remove index of central host from the indices
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hosts_indices.remove(central_node_index)
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num_subscribed_peer = 2
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subscribed_peer_indices = random.sample(hosts_indices, num_subscribed_peer)
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# All pubsub except the one of central node subscribe to topic
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for i in subscribed_peer_indices:
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await pubsubs_gsub[i].subscribe(topic)
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# Connect central host to all other hosts
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await one_to_all_connect(hosts, central_node_index)
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# Wait 2 seconds for heartbeat to allow mesh to connect
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await asyncio.sleep(2)
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# Central node publish to the topic so that this topic
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# is added to central node's fanout
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# publish from the randomly chosen host
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await pubsubs_gsub[central_node_index].publish(topic, b"data")
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# Check that the gossipsub of central node has fanout for the topic
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assert topic in gossipsubs[central_node_index].fanout
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# Check that the gossipsub of central node does not have a mesh for the topic
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assert topic not in gossipsubs[central_node_index].mesh
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# Central node subscribes the topic
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await pubsubs_gsub[central_node_index].subscribe(topic)
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await asyncio.sleep(2)
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# Check that the gossipsub of central node no longer has fanout for the topic
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assert topic not in gossipsubs[central_node_index].fanout
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for i in hosts_indices:
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if i in subscribed_peer_indices:
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assert hosts[i].get_id() in gossipsubs[central_node_index].mesh[topic]
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assert hosts[central_node_index].get_id() in gossipsubs[i].mesh[topic]
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else:
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assert hosts[i].get_id() not in gossipsubs[central_node_index].mesh[topic]
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assert topic not in gossipsubs[i].mesh
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await cleanup()
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@pytest.mark.parametrize("num_hosts", (1,))
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@pytest.mark.asyncio
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async def test_leave(pubsubs_gsub):
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gossipsub = pubsubs_gsub[0].router
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topic = "test_leave"
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assert topic not in gossipsub.mesh
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await gossipsub.join(topic)
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assert topic in gossipsub.mesh
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await gossipsub.leave(topic)
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assert topic not in gossipsub.mesh
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# Test re-leave
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await gossipsub.leave(topic)
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await cleanup()
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@pytest.mark.parametrize("num_hosts", (2,))
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@pytest.mark.asyncio
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async def test_handle_graft(pubsubs_gsub, hosts, event_loop, monkeypatch):
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gossipsubs = tuple(pubsub.router for pubsub in pubsubs_gsub)
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index_alice = 0
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id_alice = hosts[index_alice].get_id()
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index_bob = 1
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id_bob = hosts[index_bob].get_id()
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await connect(hosts[index_alice], hosts[index_bob])
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# Wait 2 seconds for heartbeat to allow mesh to connect
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await asyncio.sleep(2)
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topic = "test_handle_graft"
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# Only lice subscribe to the topic
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await gossipsubs[index_alice].join(topic)
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# Monkey patch bob's `emit_prune` function so we can
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# check if it is called in `handle_graft`
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event_emit_prune = asyncio.Event()
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async def emit_prune(topic, sender_peer_id):
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event_emit_prune.set()
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monkeypatch.setattr(gossipsubs[index_bob], "emit_prune", emit_prune)
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# Check that alice is bob's peer but not his mesh peer
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assert id_alice in gossipsubs[index_bob].peers_gossipsub
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assert topic not in gossipsubs[index_bob].mesh
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await gossipsubs[index_alice].emit_graft(topic, id_bob)
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# Check that `emit_prune` is called
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await asyncio.wait_for(event_emit_prune.wait(), timeout=1, loop=event_loop)
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assert event_emit_prune.is_set()
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# Check that bob is alice's peer but not her mesh peer
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assert topic in gossipsubs[index_alice].mesh
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assert id_bob not in gossipsubs[index_alice].mesh[topic]
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assert id_bob in gossipsubs[index_alice].peers_gossipsub
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await gossipsubs[index_bob].emit_graft(topic, id_alice)
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await asyncio.sleep(1)
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# Check that bob is now alice's mesh peer
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assert id_bob in gossipsubs[index_alice].mesh[topic]
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await cleanup()
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@pytest.mark.parametrize(
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"num_hosts, gossipsub_params", ((2, GossipsubParams(heartbeat_interval=3)),)
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)
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@pytest.mark.asyncio
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async def test_handle_prune(pubsubs_gsub, hosts):
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gossipsubs = tuple(pubsub.router for pubsub in pubsubs_gsub)
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index_alice = 0
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id_alice = hosts[index_alice].get_id()
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index_bob = 1
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id_bob = hosts[index_bob].get_id()
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topic = "test_handle_prune"
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for pubsub in pubsubs_gsub:
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await pubsub.subscribe(topic)
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await connect(hosts[index_alice], hosts[index_bob])
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# Wait 3 seconds for heartbeat to allow mesh to connect
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await asyncio.sleep(3)
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# Check that they are each other's mesh peer
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assert id_alice in gossipsubs[index_bob].mesh[topic]
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assert id_bob in gossipsubs[index_alice].mesh[topic]
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# alice emit prune message to bob, alice should be removed
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# from bob's mesh peer
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await gossipsubs[index_alice].emit_prune(topic, id_bob)
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# FIXME: This test currently works because the heartbeat interval
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# is increased to 3 seconds, so alice won't get add back into
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# bob's mesh peer during heartbeat.
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await asyncio.sleep(1)
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# Check that alice is no longer bob's mesh peer
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assert id_alice not in gossipsubs[index_bob].mesh[topic]
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assert id_bob in gossipsubs[index_alice].mesh[topic]
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await cleanup()
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@pytest.mark.parametrize("num_hosts", (10,))
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@pytest.mark.asyncio
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async def test_dense(num_hosts, pubsubs_gsub, hosts):
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num_msgs = 5
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# All pubsub subscribe to foobar
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queues = []
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for pubsub in pubsubs_gsub:
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q = await pubsub.subscribe("foobar")
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# Add each blocking queue to an array of blocking queues
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queues.append(q)
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# Densely connect libp2p hosts in a random way
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await dense_connect(hosts)
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# Wait 2 seconds for heartbeat to allow mesh to connect
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await asyncio.sleep(2)
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for i in range(num_msgs):
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msg_content = b"foo " + i.to_bytes(1, "big")
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# randomly pick a message origin
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origin_idx = random.randint(0, num_hosts - 1)
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# publish from the randomly chosen host
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await pubsubs_gsub[origin_idx].publish("foobar", msg_content)
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await asyncio.sleep(0.5)
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# Assert that all blocking queues receive the message
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for queue in queues:
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msg = await queue.get()
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assert msg.data == msg_content
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await cleanup()
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@pytest.mark.parametrize("num_hosts", (10,))
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@pytest.mark.asyncio
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async def test_fanout(hosts, pubsubs_gsub):
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num_msgs = 5
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# All pubsub subscribe to foobar except for `pubsubs_gsub[0]`
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queues = []
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for i in range(1, len(pubsubs_gsub)):
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q = await pubsubs_gsub[i].subscribe("foobar")
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# Add each blocking queue to an array of blocking queues
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queues.append(q)
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# Sparsely connect libp2p hosts in random way
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await dense_connect(hosts)
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# Wait 2 seconds for heartbeat to allow mesh to connect
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await asyncio.sleep(2)
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topic = "foobar"
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# Send messages with origin not subscribed
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for i in range(num_msgs):
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msg_content = b"foo " + i.to_bytes(1, "big")
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# Pick the message origin to the node that is not subscribed to 'foobar'
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origin_idx = 0
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# publish from the randomly chosen host
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await pubsubs_gsub[origin_idx].publish(topic, msg_content)
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await asyncio.sleep(0.5)
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# Assert that all blocking queues receive the message
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for queue in queues:
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msg = await queue.get()
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assert msg.data == msg_content
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# Subscribe message origin
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queues.insert(0, await pubsubs_gsub[0].subscribe(topic))
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# Send messages again
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for i in range(num_msgs):
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msg_content = b"bar " + i.to_bytes(1, "big")
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# Pick the message origin to the node that is not subscribed to 'foobar'
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origin_idx = 0
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# publish from the randomly chosen host
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await pubsubs_gsub[origin_idx].publish(topic, msg_content)
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await asyncio.sleep(0.5)
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# Assert that all blocking queues receive the message
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for queue in queues:
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msg = await queue.get()
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assert msg.data == msg_content
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await cleanup()
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@pytest.mark.parametrize("num_hosts", (10,))
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@pytest.mark.asyncio
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@pytest.mark.slow
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async def test_fanout_maintenance(hosts, pubsubs_gsub):
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num_msgs = 5
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# All pubsub subscribe to foobar
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queues = []
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topic = "foobar"
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for i in range(1, len(pubsubs_gsub)):
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q = await pubsubs_gsub[i].subscribe(topic)
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# Add each blocking queue to an array of blocking queues
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queues.append(q)
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# Sparsely connect libp2p hosts in random way
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await dense_connect(hosts)
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# Wait 2 seconds for heartbeat to allow mesh to connect
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await asyncio.sleep(2)
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# Send messages with origin not subscribed
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for i in range(num_msgs):
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msg_content = b"foo " + i.to_bytes(1, "big")
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# Pick the message origin to the node that is not subscribed to 'foobar'
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origin_idx = 0
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# publish from the randomly chosen host
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await pubsubs_gsub[origin_idx].publish(topic, msg_content)
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await asyncio.sleep(0.5)
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# Assert that all blocking queues receive the message
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for queue in queues:
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msg = await queue.get()
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assert msg.data == msg_content
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for sub in pubsubs_gsub:
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await sub.unsubscribe(topic)
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queues = []
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await asyncio.sleep(2)
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# Resub and repeat
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for i in range(1, len(pubsubs_gsub)):
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q = await pubsubs_gsub[i].subscribe(topic)
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# Add each blocking queue to an array of blocking queues
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queues.append(q)
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await asyncio.sleep(2)
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# Check messages can still be sent
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for i in range(num_msgs):
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msg_content = b"bar " + i.to_bytes(1, "big")
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# Pick the message origin to the node that is not subscribed to 'foobar'
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origin_idx = 0
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# publish from the randomly chosen host
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await pubsubs_gsub[origin_idx].publish(topic, msg_content)
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await asyncio.sleep(0.5)
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# Assert that all blocking queues receive the message
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for queue in queues:
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msg = await queue.get()
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assert msg.data == msg_content
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await cleanup()
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@pytest.mark.parametrize(
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"num_hosts, gossipsub_params",
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(
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(
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2,
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GossipsubParams(
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degree=1,
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degree_low=0,
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degree_high=2,
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gossip_window=50,
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gossip_history=100,
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),
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),
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),
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)
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@pytest.mark.asyncio
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async def test_gossip_propagation(hosts, pubsubs_gsub):
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topic = "foo"
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await pubsubs_gsub[0].subscribe(topic)
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# node 0 publish to topic
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msg_content = b"foo_msg"
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# publish from the randomly chosen host
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await pubsubs_gsub[0].publish(topic, msg_content)
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# now node 1 subscribes
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queue_1 = await pubsubs_gsub[1].subscribe(topic)
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await connect(hosts[0], hosts[1])
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# wait for gossip heartbeat
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await asyncio.sleep(2)
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# should be able to read message
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msg = await queue_1.get()
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assert msg.data == msg_content
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await cleanup()
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