nim-libp2p/tests/testswitch.nim

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import unittest, tables
import chronos
import ../libp2p/[switch,
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multistream,
protocols/identify,
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connection,
transports/transport,
transports/tcptransport,
multiaddress,
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peerinfo,
crypto/crypto,
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peer,
protocols/protocol,
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muxers/muxer,
muxers/mplex/mplex,
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muxers/mplex/types,
protocols/secure/secio,
protocols/secure/secure]
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when defined(nimHasUsed): {.used.}
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const TestCodec = "/test/proto/1.0.0"
type
TestProto = ref object of LPProtocol
method init(p: TestProto) {.gcsafe.} =
proc handle(conn: Connection, proto: string) {.async, gcsafe.} =
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let msg = cast[string](await conn.readLp())
check "Hello!" == msg
await conn.writeLp("Hello!")
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await conn.close()
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p.codec = TestCodec
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p.handler = handle
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proc createSwitch(ma: MultiAddress): (Switch, PeerInfo) =
var peerInfo: PeerInfo = PeerInfo.init(PrivateKey.random(RSA))
peerInfo.addrs.add(ma)
let identify = newIdentify(peerInfo)
proc createMplex(conn: Connection): Muxer =
result = newMplex(conn)
let mplexProvider = newMuxerProvider(createMplex, MplexCodec)
let transports = @[Transport(newTransport(TcpTransport))]
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":
test "e2e use switch dial proto string":
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proc testSwitch(): Future[bool] {.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 testProto = new TestProto
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testProto.init()
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testProto.codec = TestCodec
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switch1.mount(testProto)
(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)
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await conn.writeLp("Hello!")
let msg = cast[string](await conn.readLp())
check "Hello!" == msg
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await allFutures(switch1.stop(), switch2.stop())
await allFutures(awaiters)
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result = true
check:
waitFor(testSwitch()) == true
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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
(switch1, peerInfo1) = createSwitch(ma1)
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var awaiters: seq[Future[void]]
awaiters.add(await switch1.start())
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(switch2, peerInfo2) = createSwitch(ma2)
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awaiters.add(await switch2.start())
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var conn = await switch2.dial(switch1.peerInfo)
check isNil(conn)
discard allFutures(switch1.stop(), switch2.stop())
result = true
check:
waitFor(testSwitch()) == true