nim-libp2p/tests/testswitch.nim

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{.used.}
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import unittest, tables
import chronos
import chronicles
import nimcrypto/sysrand
import ../libp2p/[errors,
switch,
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multistream,
stream/bufferstream,
protocols/identify,
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connection,
transports/transport,
transports/tcptransport,
multiaddress,
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peerinfo,
crypto/crypto,
protocols/protocol,
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muxers/muxer,
muxers/mplex/mplex,
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muxers/mplex/types,
protocols/secure/secio,
protocols/secure/secure,
stream/lpstream]
import ./helpers
const
TestCodec = "/test/proto/1.0.0"
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type
TestProto = ref object of LPProtocol
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proc createSwitch(ma: MultiAddress): (Switch, PeerInfo) =
var peerInfo: PeerInfo = PeerInfo.init(PrivateKey.random(RSA).tryGet())
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peerInfo.addrs.add(ma)
let identify = newIdentify(peerInfo)
proc createMplex(conn: Connection): Muxer =
result = newMplex(conn)
let mplexProvider = newMuxerProvider(createMplex, MplexCodec)
let transports = @[Transport(TcpTransport.init())]
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let muxers = [(MplexCodec, mplexProvider)].toTable()
let secureManagers = [(SecioCodec, Secure(newSecio(peerInfo.privateKey)))].toTable()
let switch = newSwitch(peerInfo,
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transports,
identify,
muxers,
secureManagers)
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result = (switch, peerInfo)
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suite "Switch":
teardown:
for tracker in testTrackers():
# echo tracker.dump()
check tracker.isLeaked() == false
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test "e2e use switch dial proto string":
proc testSwitch() {.async, gcsafe.} =
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let ma1: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
let ma2: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
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var peerInfo1, peerInfo2: PeerInfo
var switch1, switch2: Switch
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var awaiters: seq[Future[void]]
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(switch1, peerInfo1) = createSwitch(ma1)
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let done = newFuture[void]()
proc handle(conn: Connection, proto: string) {.async, gcsafe.} =
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let msg = cast[string](await conn.readLp(1024))
check "Hello!" == msg
await conn.writeLp("Hello!")
await conn.close()
done.complete()
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let testProto = new TestProto
testProto.codec = TestCodec
testProto.handler = handle
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switch1.mount(testProto)
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(switch2, peerInfo2) = createSwitch(ma2)
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awaiters.add(await switch1.start())
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awaiters.add(await switch2.start())
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let conn = await switch2.dial(switch1.peerInfo, TestCodec)
await conn.writeLp("Hello!")
let msg = cast[string](await conn.readLp(1024))
check "Hello!" == msg
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await allFuturesThrowing(
done.wait(5.seconds) #[if OK won't happen!!]#,
conn.close(),
switch1.stop(),
switch2.stop(),
)
# this needs to go at end
await allFuturesThrowing(awaiters)
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waitFor(testSwitch())
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test "e2e use switch no proto string":
proc testSwitch(): Future[bool] {.async, gcsafe.} =
let ma1: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
let ma2: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
var peerInfo1, peerInfo2: PeerInfo
var switch1, switch2: Switch
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var awaiters: seq[Future[void]]
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(switch1, peerInfo1) = createSwitch(ma1)
proc handle(conn: Connection, proto: string) {.async, gcsafe.} =
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let msg = cast[string](await conn.readLp(1024))
check "Hello!" == msg
await conn.writeLp("Hello!")
await conn.close()
let testProto = new TestProto
testProto.codec = TestCodec
testProto.handler = handle
switch1.mount(testProto)
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(switch2, peerInfo2) = createSwitch(ma2)
awaiters.add(await switch1.start())
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awaiters.add(await switch2.start())
await switch2.connect(switch1.peerInfo)
let conn = await switch2.dial(switch1.peerInfo, TestCodec)
try:
await conn.writeLp("Hello!")
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let msg = cast[string](await conn.readLp(1024))
check "Hello!" == msg
result = true
except LPStreamError:
result = false
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await allFuturesThrowing(
conn.close(),
switch1.stop(),
switch2.stop()
)
await allFuturesThrowing(awaiters)
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check:
waitFor(testSwitch()) == true
# test "e2e: handle read + secio fragmented":
# proc testListenerDialer(): Future[bool] {.async.} =
# let
# server: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
# serverInfo = PeerInfo.init(PrivateKey.random(RSA), [server])
# serverNoise = newSecio(serverInfo.privateKey)
# readTask = newFuture[void]()
# var hugePayload = newSeq[byte](0x1200000)
# check randomBytes(hugePayload) == hugePayload.len
# trace "Sending huge payload", size = hugePayload.len
# proc connHandler(conn: Connection) {.async, gcsafe.} =
# let sconn = await serverNoise.secure(conn)
# defer:
# await sconn.close()
# let msg = await sconn.read(0x1200000)
# check msg == hugePayload
# readTask.complete()
# let
# transport1: TcpTransport = TcpTransport.init()
# asyncCheck await transport1.listen(server, connHandler)
# let
# transport2: TcpTransport = TcpTransport.init()
# clientInfo = PeerInfo.init(PrivateKey.random(RSA), [transport1.ma])
# clientNoise = newSecio(clientInfo.privateKey)
# conn = await transport2.dial(transport1.ma)
# sconn = await clientNoise.secure(conn)
# await sconn.write(hugePayload)
# await readTask
# await sconn.close()
# await conn.close()
# await transport2.close()
# await transport1.close()
# result = true
# check:
# waitFor(testListenerDialer()) == true