434 lines
13 KiB
Python
434 lines
13 KiB
Python
import asyncio
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import multiaddr
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import pytest
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from tests.utils import cleanup
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from libp2p import new_node
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from libp2p.peer.peerinfo import info_from_p2p_addr
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from libp2p.pubsub.pb import rpc_pb2
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from libp2p.pubsub.pubsub import Pubsub
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from libp2p.pubsub.floodsub import FloodSub
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from utils import message_id_generator, generate_RPC_packet
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# pylint: disable=too-many-locals
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async def connect(node1, node2):
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"""
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Connect node1 to node2
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"""
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addr = node2.get_addrs()[0]
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info = info_from_p2p_addr(addr)
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await node1.connect(info)
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@pytest.mark.asyncio
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async def test_simple_two_nodes_RPC():
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node_a = await new_node(transport_opt=["/ip4/127.0.0.1/tcp/0"])
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node_b = await new_node(transport_opt=["/ip4/127.0.0.1/tcp/0"])
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await node_a.get_network().listen(multiaddr.Multiaddr("/ip4/127.0.0.1/tcp/0"))
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await node_b.get_network().listen(multiaddr.Multiaddr("/ip4/127.0.0.1/tcp/0"))
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supported_protocols = ["/floodsub/1.0.0"]
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floodsub_a = FloodSub(supported_protocols)
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pubsub_a = Pubsub(node_a, floodsub_a, "a")
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floodsub_b = FloodSub(supported_protocols)
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pubsub_b = Pubsub(node_b, floodsub_b, "b")
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await connect(node_a, node_b)
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await asyncio.sleep(0.25)
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qb = await pubsub_b.subscribe("my_topic")
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await asyncio.sleep(0.25)
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node_a_id = str(node_a.get_id())
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next_msg_id_func = message_id_generator(0)
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msg = generate_RPC_packet(node_a_id, ["my_topic"], "some data", next_msg_id_func())
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await floodsub_a.publish(node_a_id, msg.SerializeToString())
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await asyncio.sleep(0.25)
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res_b = await qb.get()
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# Check that the msg received by node_b is the same
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# as the message sent by node_a
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assert res_b.SerializeToString() == msg.publish[0].SerializeToString()
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# Success, terminate pending tasks.
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await cleanup()
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async def perform_test_from_obj(obj):
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"""
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Perform a floodsub test from a test obj.
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test obj are composed as follows:
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{
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"supported_protocols": ["supported/protocol/1.0.0",...],
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"adj_list": {
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"node1": ["neighbor1_of_node1", "neighbor2_of_node1", ...],
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"node2": ["neighbor1_of_node2", "neighbor2_of_node2", ...],
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...
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},
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"topic_map": {
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"topic1": ["node1_subscribed_to_topic1", "node2_subscribed_to_topic1", ...]
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},
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"messages": [
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{
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"topics": ["topic1_for_message", "topic2_for_message", ...],
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"data": "some contents of the message (newlines are not supported)",
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"node_id": "message sender node id"
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},
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...
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]
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}
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NOTE: In adj_list, for any neighbors A and B, only list B as a neighbor of A
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or B as a neighbor of A once. Do NOT list both A: ["B"] and B:["A"] as the behavior
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is undefined (even if it may work)
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"""
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# Step 1) Create graph
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adj_list = obj["adj_list"]
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node_map = {}
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floodsub_map = {}
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pubsub_map = {}
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supported_protocols = obj["supported_protocols"]
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tasks_connect = []
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for start_node_id in adj_list:
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# Create node if node does not yet exist
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if start_node_id not in node_map:
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node = await new_node(transport_opt=["/ip4/127.0.0.1/tcp/0"])
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await node.get_network().listen(multiaddr.Multiaddr("/ip4/127.0.0.1/tcp/0"))
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node_map[start_node_id] = node
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floodsub = FloodSub(supported_protocols)
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floodsub_map[start_node_id] = floodsub
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pubsub = Pubsub(node, floodsub, start_node_id)
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pubsub_map[start_node_id] = pubsub
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# For each neighbor of start_node, create if does not yet exist,
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# then connect start_node to neighbor
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for neighbor_id in adj_list[start_node_id]:
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# Create neighbor if neighbor does not yet exist
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if neighbor_id not in node_map:
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neighbor_node = await new_node(transport_opt=["/ip4/127.0.0.1/tcp/0"])
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await neighbor_node.get_network().listen(multiaddr.Multiaddr("/ip4/127.0.0.1/tcp/0"))
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node_map[neighbor_id] = neighbor_node
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floodsub = FloodSub(supported_protocols)
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floodsub_map[neighbor_id] = floodsub
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pubsub = Pubsub(neighbor_node, floodsub, neighbor_id)
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pubsub_map[neighbor_id] = pubsub
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# Connect node and neighbor
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# await connect(node_map[start_node_id], node_map[neighbor_id])
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tasks_connect.append(asyncio.ensure_future(connect(node_map[start_node_id], node_map[neighbor_id])))
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tasks_connect.append(asyncio.sleep(2))
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await asyncio.gather(*tasks_connect)
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# Allow time for graph creation before continuing
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# await asyncio.sleep(0.25)
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# Step 2) Subscribe to topics
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queues_map = {}
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topic_map = obj["topic_map"]
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tasks_topic = []
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tasks_topic_data = []
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for topic in topic_map:
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for node_id in topic_map[topic]:
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"""
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# Subscribe node to topic
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q = await pubsub_map[node_id].subscribe(topic)
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# Create topic-queue map for node_id if one does not yet exist
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if node_id not in queues_map:
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queues_map[node_id] = {}
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# Store queue in topic-queue map for node
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queues_map[node_id][topic] = q
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"""
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tasks_topic.append(asyncio.ensure_future(pubsub_map[node_id].subscribe(topic)))
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tasks_topic_data.append((node_id, topic))
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tasks_topic.append(asyncio.sleep(2))
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# Gather is like Promise.all
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responses = await asyncio.gather(*tasks_topic, return_exceptions=True)
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for i in range(len(responses) - 1):
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q = responses[i]
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node_id, topic = tasks_topic_data[i]
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if node_id not in queues_map:
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queues_map[node_id] = {}
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# Store queue in topic-queue map for node
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queues_map[node_id][topic] = q
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# Allow time for subscribing before continuing
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# await asyncio.sleep(0.01)
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# Step 3) Publish messages
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topics_in_msgs_ordered = []
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messages = obj["messages"]
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tasks_publish = []
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next_msg_id_func = message_id_generator(0)
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for msg in messages:
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topics = msg["topics"]
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data = msg["data"]
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node_id = msg["node_id"]
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# Get actual id for sender node (not the id from the test obj)
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actual_node_id = str(node_map[node_id].get_id())
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# Create correctly formatted message
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msg_talk = generate_RPC_packet(actual_node_id, topics, data, next_msg_id_func())
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# Publish message
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# await floodsub_map[node_id].publish(actual_node_id, msg_talk.to_str())
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tasks_publish.append(asyncio.ensure_future(floodsub_map[node_id].publish(\
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actual_node_id, msg_talk.SerializeToString())))
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# For each topic in topics, add topic, msg_talk tuple to ordered test list
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# TODO: Update message sender to be correct message sender before
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# adding msg_talk to this list
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for topic in topics:
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topics_in_msgs_ordered.append((topic, msg_talk))
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# Allow time for publishing before continuing
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# await asyncio.sleep(0.4)
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tasks_publish.append(asyncio.sleep(2))
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await asyncio.gather(*tasks_publish)
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# Step 4) Check that all messages were received correctly.
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# TODO: Check message sender too
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for i in range(len(topics_in_msgs_ordered)):
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topic, actual_msg = topics_in_msgs_ordered[i]
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# Look at each node in each topic
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for node_id in topic_map[topic]:
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# Get message from subscription queue
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msg_on_node_str = await queues_map[node_id][topic].get()
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assert actual_msg.publish[0].SerializeToString() == msg_on_node_str.SerializeToString()
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# Success, terminate pending tasks.
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await cleanup()
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@pytest.mark.asyncio
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async def test_simple_two_nodes_test_obj():
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test_obj = {
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"supported_protocols": ["/floodsub/1.0.0"],
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"adj_list": {
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"A": ["B"]
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},
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"topic_map": {
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"topic1": ["B"]
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},
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"messages": [
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{
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"topics": ["topic1"],
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"data": "foo",
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"node_id": "A"
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}
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]
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}
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await perform_test_from_obj(test_obj)
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@pytest.mark.asyncio
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async def test_three_nodes_two_topics_test_obj():
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test_obj = {
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"supported_protocols": ["/floodsub/1.0.0"],
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"adj_list": {
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"A": ["B"],
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"B": ["C"]
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},
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"topic_map": {
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"topic1": ["B", "C"],
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"topic2": ["B", "C"]
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},
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"messages": [
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{
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"topics": ["topic1"],
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"data": "foo",
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"node_id": "A"
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},
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{
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"topics": ["topic2"],
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"data": "Alex is tall",
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"node_id": "A"
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}
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]
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}
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await perform_test_from_obj(test_obj)
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@pytest.mark.asyncio
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async def test_two_nodes_one_topic_single_subscriber_is_sender_test_obj():
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test_obj = {
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"supported_protocols": ["/floodsub/1.0.0"],
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"adj_list": {
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"A": ["B"]
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},
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"topic_map": {
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"topic1": ["B"]
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},
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"messages": [
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{
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"topics": ["topic1"],
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"data": "Alex is tall",
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"node_id": "B"
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}
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]
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}
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await perform_test_from_obj(test_obj)
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@pytest.mark.asyncio
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async def test_two_nodes_one_topic_two_msgs_test_obj():
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test_obj = {
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"supported_protocols": ["/floodsub/1.0.0"],
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"adj_list": {
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"A": ["B"]
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},
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"topic_map": {
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"topic1": ["B"]
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},
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"messages": [
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{
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"topics": ["topic1"],
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"data": "Alex is tall",
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"node_id": "B"
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},
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{
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"topics": ["topic1"],
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"data": "foo",
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"node_id": "A"
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}
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]
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}
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await perform_test_from_obj(test_obj)
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@pytest.mark.asyncio
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async def test_seven_nodes_tree_one_topics_test_obj():
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test_obj = {
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"supported_protocols": ["/floodsub/1.0.0"],
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"adj_list": {
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"1": ["2", "3"],
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"2": ["4", "5"],
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"3": ["6", "7"]
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},
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"topic_map": {
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"astrophysics": ["2", "3", "4", "5", "6", "7"]
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},
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"messages": [
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{
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"topics": ["astrophysics"],
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"data": "e=mc^2",
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"node_id": "1"
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}
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]
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}
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await perform_test_from_obj(test_obj)
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@pytest.mark.asyncio
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async def test_seven_nodes_tree_three_topics_test_obj():
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test_obj = {
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"supported_protocols": ["/floodsub/1.0.0"],
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"adj_list": {
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"1": ["2", "3"],
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"2": ["4", "5"],
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"3": ["6", "7"]
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},
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"topic_map": {
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"astrophysics": ["2", "3", "4", "5", "6", "7"],
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"space": ["2", "3", "4", "5", "6", "7"],
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"onions": ["2", "3", "4", "5", "6", "7"]
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},
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"messages": [
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{
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"topics": ["astrophysics"],
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"data": "e=mc^2",
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"node_id": "1"
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},
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{
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"topics": ["space"],
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"data": "foobar",
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"node_id": "1"
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},
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{
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"topics": ["onions"],
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"data": "I am allergic",
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"node_id": "1"
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}
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]
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}
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await perform_test_from_obj(test_obj)
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@pytest.mark.asyncio
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async def test_seven_nodes_tree_three_topics_diff_origin_test_obj():
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test_obj = {
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"supported_protocols": ["/floodsub/1.0.0"],
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"adj_list": {
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"1": ["2", "3"],
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"2": ["4", "5"],
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"3": ["6", "7"]
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},
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"topic_map": {
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"astrophysics": ["1", "2", "3", "4", "5", "6", "7"],
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"space": ["1", "2", "3", "4", "5", "6", "7"],
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"onions": ["1", "2", "3", "4", "5", "6", "7"]
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},
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"messages": [
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{
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"topics": ["astrophysics"],
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"data": "e=mc^2",
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"node_id": "1"
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},
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{
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"topics": ["space"],
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"data": "foobar",
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"node_id": "4"
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},
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{
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"topics": ["onions"],
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"data": "I am allergic",
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"node_id": "7"
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}
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]
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}
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await perform_test_from_obj(test_obj)
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@pytest.mark.asyncio
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async def test_three_nodes_clique_two_topic_diff_origin_test_obj():
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test_obj = {
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"supported_protocols": ["/floodsub/1.0.0"],
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"adj_list": {
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"1": ["2", "3"],
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"2": ["3"]
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},
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"topic_map": {
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"astrophysics": ["1", "2", "3"],
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"school": ["1", "2", "3"]
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},
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"messages": [
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{
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"topics": ["astrophysics"],
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"data": "e=mc^2",
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"node_id": "1"
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},
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{
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"topics": ["school"],
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"data": "foobar",
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"node_id": "2"
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},
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{
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"topics": ["astrophysics"],
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"data": "I am allergic",
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"node_id": "1"
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}
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]
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}
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await perform_test_from_obj(test_obj)
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