nim-libp2p-experimental/tests/pubsub/testgossipsub.nim

367 lines
12 KiB
Nim

## Nim-Libp2p
## Copyright (c) 2018 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
{.used.}
import unittest, sequtils, options, tables, sets
import chronos
import chronicles
import utils, ../../libp2p/[errors,
peer,
peerinfo,
connection,
crypto/crypto,
stream/bufferstream,
protocols/pubsub/pubsub,
protocols/pubsub/gossipsub,
protocols/pubsub/rpc/messages]
import ../helpers
proc createGossipSub(): GossipSub =
var peerInfo = PeerInfo.init(PrivateKey.random(RSA).get())
result = newPubSub(GossipSub, peerInfo)
proc waitSub(sender, receiver: auto; key: string) {.async, gcsafe.} =
if sender == receiver:
return
# turn things deterministic
# this is for testing purposes only
# peers can be inside `mesh` and `fanout`, not just `gossipsub`
var ceil = 15
let fsub = cast[GossipSub](sender.pubSub.get())
while (not fsub.gossipsub.hasKey(key) or
not fsub.gossipsub[key].contains(receiver.peerInfo.id)) and
(not fsub.mesh.hasKey(key) or
not fsub.mesh[key].contains(receiver.peerInfo.id)) and
(not fsub.fanout.hasKey(key) or
not fsub.fanout[key].contains(receiver.peerInfo.id)):
trace "waitSub sleeping...", peers=fsub.gossipsub[key]
await sleepAsync(100.millis)
dec ceil
doAssert(ceil > 0, "waitSub timeout!")
suite "GossipSub":
teardown:
for tracker in testTrackers():
check tracker.isLeaked() == false
test "GossipSub validation should succeed":
proc runTests(): Future[bool] {.async.} =
var handlerFut = newFuture[bool]()
proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
check topic == "foobar"
handlerFut.complete(true)
var nodes = generateNodes(2, true)
var awaiters: seq[Future[void]]
awaiters.add((await nodes[0].start()))
awaiters.add((await nodes[1].start()))
await subscribeNodes(nodes)
await nodes[0].subscribe("foobar", handler)
await waitSub(nodes[1], nodes[0], "foobar")
await nodes[1].subscribe("foobar", handler)
await waitSub(nodes[0], nodes[1], "foobar")
var validatorFut = newFuture[bool]()
proc validator(topic: string,
message: Message):
Future[bool] {.async.} =
check topic == "foobar"
validatorFut.complete(true)
result = true
nodes[1].addValidator("foobar", validator)
await nodes[0].publish("foobar", cast[seq[byte]]("Hello!"))
result = (await validatorFut) and (await handlerFut)
await allFuturesThrowing(nodes[0].stop(), nodes[1].stop())
await allFuturesThrowing(awaiters)
check:
waitFor(runTests()) == true
test "GossipSub validation should fail":
proc runTests(): Future[bool] {.async.} =
proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
check false # if we get here, it should fail
var nodes = generateNodes(2, true)
var awaiters: seq[Future[void]]
awaiters.add((await nodes[0].start()))
awaiters.add((await nodes[1].start()))
await subscribeNodes(nodes)
await nodes[1].subscribe("foobar", handler)
await waitSub(nodes[0], nodes[1], "foobar")
var validatorFut = newFuture[bool]()
proc validator(topic: string,
message: Message):
Future[bool] {.async.} =
validatorFut.complete(true)
result = false
nodes[1].addValidator("foobar", validator)
await nodes[0].publish("foobar", cast[seq[byte]]("Hello!"))
result = await validatorFut
await allFuturesThrowing(nodes[0].stop(), nodes[1].stop())
await allFuturesThrowing(awaiters)
check:
waitFor(runTests()) == true
test "GossipSub validation one fails and one succeeds":
proc runTests(): Future[bool] {.async.} =
var handlerFut = newFuture[bool]()
proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
check topic == "foo"
handlerFut.complete(true)
var nodes = generateNodes(2, true)
var awaiters: seq[Future[void]]
awaiters.add((await nodes[0].start()))
awaiters.add((await nodes[1].start()))
await subscribeNodes(nodes)
await nodes[1].subscribe("foo", handler)
await waitSub(nodes[0], nodes[1], "foo")
await nodes[1].subscribe("bar", handler)
await waitSub(nodes[0], nodes[1], "bar")
var passed, failed: Future[bool] = newFuture[bool]()
proc validator(topic: string,
message: Message):
Future[bool] {.async.} =
result = if topic == "foo":
passed.complete(true)
true
else:
failed.complete(true)
false
nodes[1].addValidator("foo", "bar", validator)
await nodes[0].publish("foo", cast[seq[byte]]("Hello!"))
await nodes[0].publish("bar", cast[seq[byte]]("Hello!"))
result = ((await passed) and (await failed) and (await handlerFut))
await allFuturesThrowing(nodes[0].stop(), nodes[1].stop())
await allFuturesThrowing(awaiters)
result = true
check:
waitFor(runTests()) == true
test "e2e - GossipSub should add remote peer topic subscriptions":
proc testBasicGossipSub(): Future[bool] {.async.} =
proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
discard
var nodes: seq[Switch] = newSeq[Switch]()
for i in 0..<2:
nodes.add newStandardSwitch(gossip = true)
var awaitters: seq[Future[void]]
for node in nodes:
awaitters.add(await node.start())
await subscribeNodes(nodes)
await nodes[1].subscribe("foobar", handler)
await sleepAsync(1.seconds)
let gossip1 = GossipSub(nodes[0].pubSub.get())
let gossip2 = GossipSub(nodes[1].pubSub.get())
check:
"foobar" in gossip2.topics
"foobar" in gossip1.gossipsub
gossip2.peerInfo.id in gossip1.gossipsub["foobar"]
await allFuturesThrowing(nodes.mapIt(it.stop()))
await allFuturesThrowing(awaitters)
result = true
check:
waitFor(testBasicGossipSub()) == true
test "e2e - GossipSub should add remote peer topic subscriptions if both peers are subscribed":
proc testBasicGossipSub(): Future[bool] {.async.} =
proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
discard
var nodes: seq[Switch] = newSeq[Switch]()
for i in 0..<2:
nodes.add newStandardSwitch(gossip = true)
var awaitters: seq[Future[void]]
for node in nodes:
awaitters.add(await node.start())
await subscribeNodes(nodes)
await nodes[0].subscribe("foobar", handler)
await nodes[1].subscribe("foobar", handler)
var subs: seq[Future[void]]
subs &= waitSub(nodes[1], nodes[0], "foobar")
subs &= waitSub(nodes[0], nodes[1], "foobar")
await allFuturesThrowing(subs)
let
gossip1 = GossipSub(nodes[0].pubSub.get())
gossip2 = GossipSub(nodes[1].pubSub.get())
check:
"foobar" in gossip1.topics
"foobar" in gossip2.topics
"foobar" in gossip1.gossipsub
"foobar" in gossip2.gossipsub
gossip2.peerInfo.id in gossip1.gossipsub["foobar"] or
gossip2.peerInfo.id in gossip1.mesh["foobar"]
gossip1.peerInfo.id in gossip2.gossipsub["foobar"] or
gossip1.peerInfo.id in gossip2.mesh["foobar"]
await allFuturesThrowing(nodes.mapIt(it.stop()))
await allFuturesThrowing(awaitters)
result = true
check:
waitFor(testBasicGossipSub()) == true
test "e2e - GossipSub send over fanout A -> B":
proc runTests(): Future[bool] {.async.} =
var passed = newFuture[void]()
proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
check topic == "foobar"
passed.complete()
var nodes = generateNodes(2, true)
var wait = newSeq[Future[void]]()
wait.add(await nodes[0].start())
wait.add(await nodes[1].start())
await subscribeNodes(nodes)
await nodes[1].subscribe("foobar", handler)
await waitSub(nodes[0], nodes[1], "foobar")
var observed = 0
let
obs1 = PubSubObserver(onRecv: proc(peer: PubSubPeer; msgs: var RPCMsg) =
inc observed
)
obs2 = PubSubObserver(onSend: proc(peer: PubSubPeer; msgs: var RPCMsg) =
inc observed
)
nodes[1].pubsub.get().addObserver(obs1)
nodes[0].pubsub.get().addObserver(obs2)
await nodes[0].publish("foobar", cast[seq[byte]]("Hello!"))
var gossipSub1: GossipSub = GossipSub(nodes[0].pubSub.get())
check:
"foobar" in gossipSub1.gossipsub
await passed.wait(5.seconds)
trace "test done, stopping..."
await nodes[0].stop()
await nodes[1].stop()
await allFuturesThrowing(wait)
result = observed == 2
check:
waitFor(runTests()) == true
test "e2e - GossipSub send over mesh A -> B":
proc runTests(): Future[bool] {.async.} =
var passed: Future[bool] = newFuture[bool]()
proc handler(topic: string, data: seq[byte]) {.async, gcsafe.} =
check topic == "foobar"
passed.complete(true)
var nodes = generateNodes(2, true)
var wait: seq[Future[void]]
wait.add(await nodes[0].start())
wait.add(await nodes[1].start())
await subscribeNodes(nodes)
await nodes[1].subscribe("foobar", handler)
await waitSub(nodes[0], nodes[1], "foobar")
await nodes[0].publish("foobar", cast[seq[byte]]("Hello!"))
result = await passed
await nodes[0].stop()
await nodes[1].stop()
await allFuturesThrowing(wait)
check:
waitFor(runTests()) == true
test "e2e - GossipSub with multiple peers":
proc runTests(): Future[bool] {.async.} =
var nodes: seq[Switch] = newSeq[Switch]()
var awaitters: seq[Future[void]]
for i in 0..<11:
nodes.add newStandardSwitch(triggerSelf = true, gossip = true)
awaitters.add((await nodes[i].start()))
await subscribeNodes(nodes)
var seen: Table[string, int]
var subs: seq[Future[void]]
var seenFut = newFuture[void]()
for dialer in nodes:
var handler: TopicHandler
closureScope:
var dialerNode = dialer
handler = proc(topic: string, data: seq[byte]) {.async, gcsafe, closure.} =
if dialerNode.peerInfo.id notin seen:
seen[dialerNode.peerInfo.id] = 0
seen[dialerNode.peerInfo.id].inc
check topic == "foobar"
if not seenFut.finished() and seen.len == 10:
seenFut.complete()
subs.add(allFutures(dialer.subscribe("foobar", handler), waitSub(nodes[0], dialer, "foobar")))
await allFuturesThrowing(subs)
await wait(nodes[0].publish("foobar",
cast[seq[byte]]("from node " &
nodes[1].peerInfo.id)),
1.minutes)
await wait(seenFut, 2.minutes)
check: seen.len >= 10
for k, v in seen.pairs:
check: v == 1
await allFuturesThrowing(nodes.mapIt(it.stop()))
await allFuturesThrowing(awaitters)
result = true
check:
waitFor(runTests()) == true