nimbus-eth1/fluffy/tools/utp_testing/utp_test.nim

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# Nimbus
# Copyright (c) 2022-2023 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
import
std/[options, sequtils, sugar, strutils],
unittest2, testutils, chronos,
json_rpc/rpcclient, stew/byteutils,
eth/keys,
./utp_test_client
proc generateBytesHex(rng: var HmacDrbgContext, length: int): string =
rng.generateBytes(length).toHex()
# Before running the test suite, there need to be two instances of the
# utp_test_app running under provided ports (9042, 9041).
# Those could be launched locally by running either
# ./utp_test_app --udp-listen-address=127.0.0.1 --rpc-listen-address=0.0.0.0 --udp-port=9041 --rpc-port=9041
# ./utp_test_app --udp-listen-address=127.0.0.1 --rpc-listen-address=0.0.0.0 --udp-port=9042 --rpc-port=9042
# or
# running from docker dir:
# 1. docker build -t test-utp --no-cache --build-arg BRANCH_NAME=branch-name .
# 2. SCENARIO="scenario name and params " docker-compose up
procSuite "uTP integration tests":
let rng = newRng()
let clientContainerAddress = "127.0.0.1"
let clientContainerPort = Port(9042)
let serverContainerAddress = "127.0.0.1"
let serverContainerPort = Port(9041)
type
FutureCallback[A] = proc (): Future[A] {.gcsafe, raises: [].}
# combinator which repeatedly calls passed closure until returned future is
# successfull
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# TODO: currently works only for non void types
proc repeatTillSuccess[A](
f: FutureCallback[A], maxTries: int = 20): Future[A] {.async.} =
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var i = 0
while true:
try:
let res = await f()
return res
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except CatchableError as exc:
echo "Call failed due to " & exc.msg
inc i
if i < maxTries:
continue
else:
raise exc
except CancelledError as canc:
raise canc
proc findServerConnection(
connections: openArray[SKey],
clientId: NodeId,
clientConnectionId: uint16): Option[Skey] =
let conns: seq[SKey] =
connections.filter((key:Skey) => key.id == (clientConnectionId + 1) and
key.nodeId == clientId)
if len(conns) == 0:
none[Skey]()
else:
some[Skey](conns[0])
proc setupTest():
Future[(RpcHttpClient, NodeInfo, RpcHttpClient, NodeInfo)] {.async.} =
let client = newRpcHttpClient()
let server = newRpcHttpClient()
await client.connect(clientContainerAddress, clientContainerPort, false)
await server.connect(serverContainerAddress, serverContainerPort, false)
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# we may need to retry few times if the simm is not ready yet
let clientInfo = await repeatTillSuccess(() => client.discv5_nodeInfo(), 10)
let serverInfo = await repeatTillSuccess(() => server.discv5_nodeInfo(), 10)
# nodes need to have established session before the utp try
discard await repeatTillSuccess(() => client.discv5_ping(serverInfo.enr))
return (client, clientInfo, server, serverInfo)
asyncTest "Transfer 100k bytes of data over utp stream from client to server":
let (client, clientInfo, server, serverInfo) = await setupTest()
let numOfBytes = 100000
let
clientConnectionKey = await repeatTillSuccess(() =>
client.utp_connect(serverInfo.enr))
serverConnections = await repeatTillSuccess(() =>
server.utp_get_connections())
maybeServerConnectionKey = serverConnections.findServerConnection(
clientInfo.nodeId, clientConnectionKey.id)
check:
maybeServerConnectionKey.isSome()
let serverConnectionKey = maybeServerConnectionKey.unsafeGet()
let
bytesToWrite = generateBytesHex(rng[], numOfBytes)
writeRes = await client.utp_write(clientConnectionKey, bytesToWrite)
readData = await server.utp_read(serverConnectionKey, numOfBytes)
check:
writeRes == true
readData == bytesToWrite
asyncTest "Transfer 100k bytes of data over utp stream from server to client":
# In classic uTP this would not be possible, as when uTP works over UDP the
# client needs to transfer first, but when working over discv5 it should be
# possible to transfer data from server to client from the start.
let (client, clientInfo, server, serverInfo) = await setupTest()
let numOfBytes = 100000
let
clientConnectionKey = await repeatTillSuccess(() =>
client.utp_connect(serverInfo.enr))
serverConnections = await repeatTillSuccess(() =>
server.utp_get_connections())
maybeServerConnectionKey = serverConnections.findServerConnection(
clientInfo.nodeId, clientConnectionKey.id)
check:
maybeServerConnectionKey.isSome()
let serverConnectionKey = maybeServerConnectionKey.unsafeGet()
let
bytesToWrite = generateBytesHex(rng[], numOfBytes)
writeRes = await server.utp_write(serverConnectionKey, bytesToWrite)
readData = await client.utp_read(clientConnectionKey, numOfBytes)
check:
writeRes == true
readData == bytesToWrite
asyncTest "Multiple 10k bytes transfers over utp stream":
let (client, clientInfo, server, serverInfo) = await setupTest()
let numOfBytes = 10000
let
clientConnectionKey = await repeatTillSuccess(() =>
client.utp_connect(serverInfo.enr))
serverConnections = await repeatTillSuccess(() =>
server.utp_get_connections())
maybeServerConnectionKey = serverConnections.findServerConnection(
clientInfo.nodeId, clientConnectionKey.id)
check:
maybeServerConnectionKey.isSome()
let serverConnectionKey = maybeServerConnectionKey.unsafeGet()
let
bytesToWrite = generateBytesHex(rng[], numOfBytes)
bytesToWrite1 = generateBytesHex(rng[], numOfBytes)
bytesToWrite2 = generateBytesHex(rng[], numOfBytes)
writeRes = await client.utp_write(clientConnectionKey, bytesToWrite)
writeRes1 = await client.utp_write(clientConnectionKey, bytesToWrite1)
writeRes2 = await client.utp_write(clientConnectionKey, bytesToWrite2)
readData = await server.utp_read(serverConnectionKey, numOfBytes * 3)
let writtenData = join(@[bytesToWrite, bytesToWrite1, bytesToWrite2])
check:
writeRes == true
writeRes1 == true
writeRes2 == true
readData == writtenData
asyncTest "Handle mulitplie sockets over one utp server instance ":
let (client, clientInfo, server, serverInfo) = await setupTest()
let numOfBytes = 10000
let
clientConnectionKey1 = await repeatTillSuccess(() =>
client.utp_connect(serverInfo.enr))
clientConnectionKey2 = await repeatTillSuccess(() =>
client.utp_connect(serverInfo.enr))
clientConnectionKey3 = await repeatTillSuccess(() =>
client.utp_connect(serverInfo.enr))
serverConnections = await repeatTillSuccess(() =>
server.utp_get_connections())
maybeServerConnectionKey1 = serverConnections.findServerConnection(
clientInfo.nodeId, clientConnectionKey1.id)
maybeServerConnectionKey2 = serverConnections.findServerConnection(
clientInfo.nodeId, clientConnectionKey2.id)
maybeServerConnectionKey3 = serverConnections.findServerConnection(
clientInfo.nodeId, clientConnectionKey3.id)
check:
maybeServerConnectionKey1.isSome()
maybeServerConnectionKey2.isSome()
maybeServerConnectionKey3.isSome()
let serverConnectionKey1 = maybeServerConnectionKey1.unsafeGet()
let serverConnectionKey2 = maybeServerConnectionKey2.unsafeGet()
let serverConnectionKey3 = maybeServerConnectionKey3.unsafeGet()
let
bytesToWrite1 = generateBytesHex(rng[], numOfBytes)
bytesToWrite2 = generateBytesHex(rng[], numOfBytes)
bytesToWrite3 = generateBytesHex(rng[], numOfBytes)
writeRes1 = await client.utp_write(clientConnectionKey1, bytesToWrite1)
writeRes2 = await client.utp_write(clientConnectionKey2, bytesToWrite2)
writeRes3 = await client.utp_write(clientConnectionKey3, bytesToWrite3)
readData1 = await server.utp_read(serverConnectionKey1, numOfBytes)
readData2 = await server.utp_read(serverConnectionKey2, numOfBytes)
readData3 = await server.utp_read(serverConnectionKey3, numOfBytes)
check:
writeRes1 == true
writeRes2 == true
writeRes3 == true
# all data was delivered to correct sockets
readData1 == bytesToWrite1
readData2 == bytesToWrite2
readData3 == bytesToWrite3