nim-libp2p/tests/testmultistream.nim

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import unittest, strutils, sequtils, sugar, strformat
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import chronos
import ../libp2p/connection, ../libp2p/multistream,
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../libp2p/stream/lpstream, ../libp2p/connection,
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../libp2p/multiaddress, ../libp2p/transport,
../libp2p/tcptransport, ../libp2p/protocol,
../libp2p/crypto/crypto, ../libp2p/peerinfo,
../libp2p/peer
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## Mock stream for select test
type
TestSelectStream = ref object of LPStream
step*: int
method readExactly*(s: TestSelectStream,
pbytes: pointer,
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nbytes: int): Future[void] {.async, gcsafe.} =
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case s.step:
of 1:
var buf = newSeq[byte](1)
buf[0] = 19
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copyMem(pbytes, addr buf[0], buf.len())
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s.step = 2
of 2:
var buf = "/multistream/1.0.0\n"
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copyMem(pbytes, addr buf[0], buf.len())
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s.step = 3
of 3:
var buf = newSeq[byte](1)
buf[0] = 18
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copyMem(pbytes, addr buf[0], buf.len())
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s.step = 4
of 4:
var buf = "/test/proto/1.0.0\n"
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copyMem(pbytes, addr buf[0], buf.len())
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else:
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copyMem(pbytes,
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cstring("\0x3na\n"),
"\0x3na\n".len())
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method write*(s: TestSelectStream, msg: string, msglen = -1)
{.async, gcsafe.} = discard
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proc newTestSelectStream(): TestSelectStream =
new result
result.step = 1
## Mock stream for handles `ls` test
type
LsHandler = proc(procs: seq[byte]): Future[void]
TestLsStream = ref object of LPStream
step*: int
ls*: LsHandler
method readExactly*(s: TestLsStream,
pbytes: pointer,
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nbytes: int):
Future[void] {.async, gcsafe.} =
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case s.step:
of 1:
var buf = newSeq[byte](1)
buf[0] = 19
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copyMem(pbytes, addr buf[0], buf.len())
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s.step = 2
of 2:
var buf = "/multistream/1.0.0\n"
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copyMem(pbytes, addr buf[0], buf.len())
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s.step = 3
of 3:
var buf = newSeq[byte](1)
buf[0] = 3
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copyMem(pbytes, addr buf[0], buf.len())
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s.step = 4
of 4:
var buf = "ls\n"
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copyMem(pbytes, addr buf[0], buf.len())
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else:
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copyMem(pbytes, cstring("\0x3na\n"), "\0x3na\n".len())
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method write*(s: TestLsStream, msg: seq[byte], msglen = -1) {.async, gcsafe.} =
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if s.step == 4:
await s.ls(msg)
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method write*(s: TestLsStream, msg: string, msglen = -1)
{.async, gcsafe.} = discard
method close*(s: TestLsStream) {.async, gcsafe.} = discard
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proc newTestLsStream(ls: LsHandler): TestLsStream =
new result
result.ls = ls
result.step = 1
## Mock stream for handles `na` test
type
NaHandler = proc(procs: string): Future[void]
TestNaStream = ref object of LPStream
step*: int
na*: NaHandler
method readExactly*(s: TestNaStream,
pbytes: pointer,
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nbytes: int):
Future[void] {.async, gcsafe.} =
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case s.step:
of 1:
var buf = newSeq[byte](1)
buf[0] = 19
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copyMem(pbytes, addr buf[0], buf.len())
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s.step = 2
of 2:
var buf = "/multistream/1.0.0\n"
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copyMem(pbytes, addr buf[0], buf.len())
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s.step = 3
of 3:
var buf = newSeq[byte](1)
buf[0] = 18
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copyMem(pbytes, addr buf[0], buf.len())
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s.step = 4
of 4:
var buf = "/test/proto/1.0.0\n"
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copyMem(pbytes, addr buf[0], buf.len())
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else:
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copyMem(pbytes,
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cstring("\0x3na\n"),
"\0x3na\n".len())
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method write*(s: TestNaStream, msg: string, msglen = -1) {.async, gcsafe.} =
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if s.step == 4:
await s.na(msg)
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method close*(s: TestNaStream) {.async, gcsafe.} = discard
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proc newTestNaStream(na: NaHandler): TestNaStream =
new result
result.na = na
result.step = 1
suite "Multistream select":
test "test select custom proto":
proc testSelect(): Future[bool] {.async.} =
let ms = newMultistream()
let conn = newConnection(newTestSelectStream())
result = (await ms.select(conn, @["/test/proto/1.0.0"])) == "/test/proto/1.0.0"
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check:
waitFor(testSelect()) == true
test "test handle custom proto":
proc testHandle(): Future[bool] {.async.} =
let ms = newMultistream()
let conn = newConnection(newTestSelectStream())
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let seckey = PrivateKey.random(RSA)
var peerInfo: PeerInfo
peerInfo.peerId = PeerID.init(seckey)
var protocol: LPProtocol = new LPProtocol
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proc testHandler(conn: Connection,
proto: string):
Future[void] {.async, gcsafe.} =
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check proto == "/test/proto/1.0.0"
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protocol.handler = testHandler
ms.addHandler("/test/proto/1.0.0", protocol)
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await ms.handle(conn)
result = true
check:
waitFor(testHandle()) == true
test "test handle `ls`":
proc testLs(): Future[bool] {.async.} =
let ms = newMultistream()
proc testLs(proto: seq[byte]): Future[void] {.async.}
let conn = newConnection(newTestLsStream(testLs))
proc testLs(proto: seq[byte]): Future[void] {.async.} =
var strProto: string = cast[string](proto)
check strProto == "\x26/test/proto1/1.0.0\n/test/proto2/1.0.0\n"
await conn.close()
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let seckey = PrivateKey.random(RSA)
var peerInfo: PeerInfo
peerInfo.peerId = PeerID.init(seckey)
var protocol: LPProtocol = new LPProtocol
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proc testHandler(conn: Connection,
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proto: string):
Future[void] {.async, gcsafe.} = discard
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protocol.handler = testHandler
ms.addHandler("/test/proto1/1.0.0", protocol)
ms.addHandler("/test/proto2/1.0.0", protocol)
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await ms.handle(conn)
result = true
check:
waitFor(testLs()) == true
test "test handle `na`":
proc testNa(): Future[bool] {.async.} =
let ms = newMultistream()
proc testNa(msg: string): Future[void] {.async.}
let conn = newConnection(newTestNaStream(testNa))
proc testNa(msg: string): Future[void] {.async.} =
check cast[string](msg) == "\x3na\n"
await conn.close()
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let seckey = PrivateKey.random(RSA)
var peerInfo: PeerInfo
peerInfo.peerId = PeerID.init(seckey)
var protocol: LPProtocol = new LPProtocol
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proc testHandler(conn: Connection,
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proto: string):
Future[void] {.async, gcsafe.} = discard
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protocol.handler = testHandler
ms.addHandler("/unabvailable/proto/1.0.0", protocol)
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await ms.handle(conn)
result = true
check:
waitFor(testNa()) == true
test "e2e - handle":
proc endToEnd(): Future[bool] {.async.} =
let ma: MultiAddress = Multiaddress.init("/ip4/127.0.0.1/tcp/53350")
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let seckey = PrivateKey.random(RSA)
var peerInfo: PeerInfo
peerInfo.peerId = PeerID.init(seckey)
var protocol: LPProtocol = new LPProtocol
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proc testHandler(conn: Connection,
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proto: string):
Future[void] {.async, gcsafe.} =
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check proto == "/test/proto/1.0.0"
await conn.writeLp("Hello!")
await conn.close()
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protocol.handler = testHandler
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let msListen = newMultistream()
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msListen.addHandler("/test/proto/1.0.0", protocol)
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proc connHandler(conn: Connection): Future[void] {.async, gcsafe.} =
await msListen.handle(conn)
let transport1: TcpTransport = newTransport(TcpTransport)
await transport1.listen(ma, connHandler)
let msDial = newMultistream()
let transport2: TcpTransport = newTransport(TcpTransport)
let conn = await transport2.dial(ma)
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check (await msDial.select(conn, "/test/proto/1.0.0")) == "/test/proto/1.0.0"
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let hello = cast[string](await conn.readLp())
result = hello == "Hello!"
await conn.close()
check:
waitFor(endToEnd()) == true
test "e2e - ls":
proc endToEnd(): Future[bool] {.async.} =
let ma: MultiAddress = Multiaddress.init("/ip4/127.0.0.1/tcp/53351")
let msListen = newMultistream()
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let seckey = PrivateKey.random(RSA)
var peerInfo: PeerInfo
peerInfo.peerId = PeerID.init(seckey)
var protocol: LPProtocol = new LPProtocol
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protocol.handler = proc(conn: Connection, proto: string) {.async, gcsafe.} =
await conn.close()
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proc testHandler(conn: Connection,
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proto: string):
Future[void] {.async.} = discard
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protocol.handler = testHandler
msListen.addHandler("/test/proto1/1.0.0", protocol)
msListen.addHandler("/test/proto2/1.0.0", protocol)
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let transport1: TcpTransport = newTransport(TcpTransport)
proc connHandler(conn: Connection): Future[void] {.async, gcsafe.} =
await msListen.handle(conn)
await transport1.listen(ma, connHandler)
let msDial = newMultistream()
let transport2: TcpTransport = newTransport(TcpTransport)
let conn = await transport2.dial(ma)
let ls = await msDial.list(conn)
let protos: seq[string] = @["/test/proto1/1.0.0", "/test/proto2/1.0.0"]
await conn.close()
result = ls == protos
check:
waitFor(endToEnd()) == true
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test "e2e - select one from a list with unsupported protos":
proc endToEnd(): Future[bool] {.async.} =
let ma: MultiAddress = Multiaddress.init("/ip4/127.0.0.1/tcp/53352")
let seckey = PrivateKey.random(RSA)
var peerInfo: PeerInfo
peerInfo.peerId = PeerID.init(seckey)
var protocol: LPProtocol = new LPProtocol
proc testHandler(conn: Connection,
proto: string):
Future[void] {.async, gcsafe.} =
check proto == "/test/proto/1.0.0"
await conn.writeLp("Hello!")
await conn.close()
protocol.handler = testHandler
let msListen = newMultistream()
msListen.addHandler("/test/proto/1.0.0", protocol)
proc connHandler(conn: Connection): Future[void] {.async, gcsafe.} =
await msListen.handle(conn)
let transport1: TcpTransport = newTransport(TcpTransport)
await transport1.listen(ma, connHandler)
let msDial = newMultistream()
let transport2: TcpTransport = newTransport(TcpTransport)
let conn = await transport2.dial(ma)
check (await msDial.select(conn,
@["/test/proto/1.0.0", "/test/no/proto/1.0.0"])) == "/test/proto/1.0.0"
let hello = cast[string](await conn.readLp())
result = hello == "Hello!"
await conn.close()
check:
waitFor(endToEnd()) == true
test "e2e - select one with both valid":
proc endToEnd(): Future[bool] {.async.} =
let ma: MultiAddress = Multiaddress.init("/ip4/127.0.0.1/tcp/53353")
let seckey = PrivateKey.random(RSA)
var peerInfo: PeerInfo
peerInfo.peerId = PeerID.init(seckey)
var protocol: LPProtocol = new LPProtocol
proc testHandler(conn: Connection,
proto: string):
Future[void] {.async, gcsafe.} =
await conn.writeLp(&"Hello from {proto}!")
await conn.close()
protocol.handler = testHandler
let msListen = newMultistream()
msListen.addHandler("/test/proto1/1.0.0", protocol)
msListen.addHandler("/test/proto2/1.0.0", protocol)
proc connHandler(conn: Connection): Future[void] {.async, gcsafe.} =
await msListen.handle(conn)
let transport1: TcpTransport = newTransport(TcpTransport)
await transport1.listen(ma, connHandler)
let msDial = newMultistream()
let transport2: TcpTransport = newTransport(TcpTransport)
let conn = await transport2.dial(ma)
check (await msDial.select(conn, @["/test/proto2/1.0.0", "/test/proto1/1.0.0"])) == "/test/proto2/1.0.0"
result = cast[string](await conn.readLp()) == "Hello from /test/proto2/1.0.0!"
await conn.close()
check:
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waitFor(endToEnd()) == true