365 lines
11 KiB
Nim
365 lines
11 KiB
Nim
## Nim-Libp2p
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## Copyright (c) 2018 Status Research & Development GmbH
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## Licensed under either of
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## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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## * MIT license ([LICENSE-MIT](LICENSE-MIT))
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## at your option.
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## This file may not be copied, modified, or distributed except according to
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## those terms.
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{.used.}
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import unittest, sequtils, options, tables, sets
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import chronos
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import chronicles
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import utils, ../../libp2p/[errors,
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peer,
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peerinfo,
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connection,
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crypto/crypto,
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stream/bufferstream,
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protocols/pubsub/pubsub,
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protocols/pubsub/gossipsub,
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protocols/pubsub/rpc/messages]
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import ../helpers
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proc waitSub(sender, receiver: auto; key: string) {.async, gcsafe.} =
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if sender == receiver:
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return
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# turn things deterministic
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# this is for testing purposes only
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# peers can be inside `mesh` and `fanout`, not just `gossipsub`
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var ceil = 15
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let fsub = GossipSub(sender.pubSub.get())
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while (not fsub.gossipsub.hasKey(key) or
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not fsub.gossipsub[key].contains(receiver.peerInfo.id)) and
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(not fsub.mesh.hasKey(key) or
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not fsub.mesh[key].contains(receiver.peerInfo.id)) and
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(not fsub.fanout.hasKey(key) or
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not fsub.fanout[key].contains(receiver.peerInfo.id)):
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trace "waitSub sleeping..."
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await sleepAsync(100.millis)
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dec ceil
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doAssert(ceil > 0, "waitSub timeout!")
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suite "GossipSub":
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teardown:
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for tracker in testTrackers():
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check tracker.isLeaked() == false
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test "GossipSub validation should succeed":
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proc runTests(): Future[bool] {.async.} =
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var handlerFut = newFuture[bool]()
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proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
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check topic == "foobar"
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handlerFut.complete(true)
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var nodes = generateNodes(2, true)
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var awaiters: seq[Future[void]]
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awaiters.add((await nodes[0].start()))
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awaiters.add((await nodes[1].start()))
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await subscribeNodes(nodes)
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await nodes[0].subscribe("foobar", handler)
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await waitSub(nodes[1], nodes[0], "foobar")
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await nodes[1].subscribe("foobar", handler)
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await waitSub(nodes[0], nodes[1], "foobar")
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var validatorFut = newFuture[bool]()
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proc validator(topic: string,
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message: Message):
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Future[bool] {.async.} =
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check topic == "foobar"
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validatorFut.complete(true)
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result = true
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nodes[1].addValidator("foobar", validator)
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await nodes[0].publish("foobar", cast[seq[byte]]("Hello!"))
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result = (await validatorFut) and (await handlerFut)
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await all(nodes[0].stop(), nodes[1].stop())
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await all(awaiters)
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check:
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waitFor(runTests()) == true
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test "GossipSub validation should fail":
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proc runTests(): Future[bool] {.async.} =
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proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
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check false # if we get here, it should fail
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var nodes = generateNodes(2, true)
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var awaiters: seq[Future[void]]
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awaiters.add((await nodes[0].start()))
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awaiters.add((await nodes[1].start()))
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await subscribeNodes(nodes)
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await nodes[1].subscribe("foobar", handler)
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await waitSub(nodes[0], nodes[1], "foobar")
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var validatorFut = newFuture[bool]()
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proc validator(topic: string,
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message: Message):
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Future[bool] {.async.} =
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validatorFut.complete(true)
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result = false
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nodes[1].addValidator("foobar", validator)
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await nodes[0].publish("foobar", cast[seq[byte]]("Hello!"))
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result = await validatorFut
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await all(nodes[0].stop(), nodes[1].stop())
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await all(awaiters)
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check:
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waitFor(runTests()) == true
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test "GossipSub validation one fails and one succeeds":
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proc runTests(): Future[bool] {.async.} =
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var handlerFut = newFuture[bool]()
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proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
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check topic == "foo"
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handlerFut.complete(true)
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var nodes = generateNodes(2, true)
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var awaiters: seq[Future[void]]
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awaiters.add((await nodes[0].start()))
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awaiters.add((await nodes[1].start()))
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await subscribeNodes(nodes)
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await nodes[1].subscribe("foo", handler)
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await waitSub(nodes[0], nodes[1], "foo")
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await nodes[1].subscribe("bar", handler)
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await waitSub(nodes[0], nodes[1], "bar")
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var passed, failed: Future[bool] = newFuture[bool]()
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proc validator(topic: string,
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message: Message):
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Future[bool] {.async.} =
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result = if topic == "foo":
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passed.complete(true)
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true
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else:
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failed.complete(true)
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false
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nodes[1].addValidator("foo", "bar", validator)
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await nodes[0].publish("foo", cast[seq[byte]]("Hello!"))
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await nodes[0].publish("bar", cast[seq[byte]]("Hello!"))
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result = ((await passed) and (await failed) and (await handlerFut))
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await all(nodes[0].stop(), nodes[1].stop())
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await all(awaiters)
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result = true
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check:
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waitFor(runTests()) == true
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test "e2e - GossipSub should add remote peer topic subscriptions":
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proc testBasicGossipSub(): Future[bool] {.async.} =
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proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
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discard
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var nodes: seq[Switch] = newSeq[Switch]()
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for i in 0..<2:
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nodes.add newStandardSwitch(gossip = true)
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var awaitters: seq[Future[void]]
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for node in nodes:
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awaitters.add(await node.start())
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await subscribeNodes(nodes)
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await nodes[1].subscribe("foobar", handler)
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await sleepAsync(1.seconds)
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let gossip1 = GossipSub(nodes[0].pubSub.get())
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let gossip2 = GossipSub(nodes[1].pubSub.get())
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check:
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"foobar" in gossip2.topics
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"foobar" in gossip1.gossipsub
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gossip2.peerInfo.id in gossip1.gossipsub["foobar"]
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await all(nodes.mapIt(it.stop()))
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await all(awaitters)
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result = true
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check:
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waitFor(testBasicGossipSub()) == true
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test "e2e - GossipSub should add remote peer topic subscriptions if both peers are subscribed":
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proc testBasicGossipSub(): Future[bool] {.async.} =
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proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
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discard
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var nodes: seq[Switch] = newSeq[Switch]()
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for i in 0..<2:
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nodes.add newStandardSwitch(gossip = true)
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var awaitters: seq[Future[void]]
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for node in nodes:
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awaitters.add(await node.start())
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await subscribeNodes(nodes)
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await nodes[0].subscribe("foobar", handler)
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await nodes[1].subscribe("foobar", handler)
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var subs: seq[Future[void]]
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subs &= waitSub(nodes[1], nodes[0], "foobar")
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subs &= waitSub(nodes[0], nodes[1], "foobar")
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await all(subs)
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let
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gossip1 = GossipSub(nodes[0].pubSub.get())
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gossip2 = GossipSub(nodes[1].pubSub.get())
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check:
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"foobar" in gossip1.topics
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"foobar" in gossip2.topics
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"foobar" in gossip1.gossipsub
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"foobar" in gossip2.gossipsub
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gossip2.peerInfo.id in gossip1.gossipsub["foobar"] or
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gossip2.peerInfo.id in gossip1.mesh["foobar"]
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gossip1.peerInfo.id in gossip2.gossipsub["foobar"] or
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gossip1.peerInfo.id in gossip2.mesh["foobar"]
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await all(nodes.mapIt(it.stop()))
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await all(awaitters)
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result = true
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check:
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waitFor(testBasicGossipSub()) == true
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test "e2e - GossipSub send over fanout A -> B":
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proc runTests(): Future[bool] {.async.} =
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var passed = newFuture[void]()
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proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
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check topic == "foobar"
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passed.complete()
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var nodes = generateNodes(2, true)
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var wait = newSeq[Future[void]]()
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wait.add(await nodes[0].start())
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wait.add(await nodes[1].start())
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await subscribeNodes(nodes)
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await nodes[1].subscribe("foobar", handler)
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await waitSub(nodes[0], nodes[1], "foobar")
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var observed = 0
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let
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obs1 = PubSubObserver(onRecv: proc(peer: PubSubPeer; msgs: var RPCMsg) =
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inc observed
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)
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obs2 = PubSubObserver(onSend: proc(peer: PubSubPeer; msgs: var RPCMsg) =
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inc observed
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)
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nodes[1].pubsub.get().addObserver(obs1)
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nodes[0].pubsub.get().addObserver(obs2)
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await nodes[0].publish("foobar", cast[seq[byte]]("Hello!"))
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var gossipSub1: GossipSub = GossipSub(nodes[0].pubSub.get())
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check:
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"foobar" in gossipSub1.gossipsub
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await passed.wait(1.seconds)
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trace "test done, stopping..."
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await nodes[0].stop()
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await nodes[1].stop()
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await all(wait)
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result = observed == 2
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check:
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waitFor(runTests()) == true
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test "e2e - GossipSub send over mesh A -> B":
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proc runTests(): Future[bool] {.async.} =
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var passed: Future[bool] = newFuture[bool]()
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proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
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check topic == "foobar"
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passed.complete(true)
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var nodes = generateNodes(2, true)
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var wait: seq[Future[void]]
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wait.add(await nodes[0].start())
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wait.add(await nodes[1].start())
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await subscribeNodes(nodes)
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await nodes[1].subscribe("foobar", handler)
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await waitSub(nodes[0], nodes[1], "foobar")
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await nodes[0].publish("foobar", cast[seq[byte]]("Hello!"))
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result = await passed
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await nodes[0].stop()
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await nodes[1].stop()
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await all(wait)
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check:
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waitFor(runTests()) == true
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test "e2e - GossipSub with multiple peers":
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proc runTests(): Future[bool] {.async.} =
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var nodes: seq[Switch] = newSeq[Switch]()
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var awaitters: seq[Future[void]]
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var runs = 10
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for i in 0..<runs:
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nodes.add newStandardSwitch(triggerSelf = true, gossip = true)
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awaitters.add((await nodes[i].start()))
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await subscribeRandom(nodes)
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var seen: Table[string, int]
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var subs: seq[Future[void]]
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var seenFut = newFuture[void]()
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for dialer in nodes:
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var handler: TopicHandler
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closureScope:
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var dialerNode = dialer
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handler = proc(topic: string, data: seq[byte]) {.async, gcsafe, closure.} =
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if dialerNode.peerInfo.id notin seen:
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seen[dialerNode.peerInfo.id] = 0
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seen[dialerNode.peerInfo.id].inc
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check topic == "foobar"
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if not seenFut.finished() and seen.len >= runs:
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seenFut.complete()
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subs.add(allFutures(dialer.subscribe("foobar", handler),
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waitSub(nodes[0], dialer, "foobar")))
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await all(subs)
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await wait(nodes[0].publish("foobar",
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cast[seq[byte]]("from node " &
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nodes[1].peerInfo.id)),
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1.minutes)
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await wait(seenFut, 2.minutes)
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check: seen.len >= runs
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for k, v in seen.pairs:
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check: v == 1
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await all(nodes.mapIt(it.stop()))
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await all(awaitters)
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result = true
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check:
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waitFor(runTests()) == true
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