mirror of https://github.com/vacp2p/nim-libp2p.git
544 lines
18 KiB
Nim
544 lines
18 KiB
Nim
import unittest, sequtils, sugar, strformat, options, strformat, random
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import chronos, nimcrypto/utils, chronicles
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import ../libp2p/[connection,
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stream/lpstream,
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stream/bufferstream,
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transports/tcptransport,
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transports/transport,
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protocols/identify,
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multiaddress,
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muxers/mplex/mplex,
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muxers/mplex/coder,
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muxers/mplex/types,
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muxers/mplex/lpchannel,
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vbuffer,
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varint]
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when defined(nimHasUsed): {.used.}
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suite "Mplex":
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test "encode header with channel id 0":
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proc testEncodeHeader(): Future[bool] {.async.} =
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proc encHandler(msg: seq[byte]) {.async.} =
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check msg == fromHex("000873747265616d2031")
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let stream = newBufferStream(encHandler)
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let conn = newConnection(stream)
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await conn.writeMsg(0, MessageType.New, cast[seq[byte]]("stream 1"))
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result = true
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check:
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waitFor(testEncodeHeader()) == true
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test "encode header with channel id other than 0":
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proc testEncodeHeader(): Future[bool] {.async.} =
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proc encHandler(msg: seq[byte]) {.async.} =
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check msg == fromHex("88010873747265616d2031")
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let stream = newBufferStream(encHandler)
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let conn = newConnection(stream)
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await conn.writeMsg(17, MessageType.New, cast[seq[byte]]("stream 1"))
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result = true
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check:
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waitFor(testEncodeHeader()) == true
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test "encode header and body with channel id 0":
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proc testEncodeHeaderBody(): Future[bool] {.async.} =
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var step = 0
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proc encHandler(msg: seq[byte]) {.async.} =
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check msg == fromHex("020873747265616d2031")
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let stream = newBufferStream(encHandler)
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let conn = newConnection(stream)
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await conn.writeMsg(0, MessageType.MsgOut, cast[seq[byte]]("stream 1"))
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result = true
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check:
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waitFor(testEncodeHeaderBody()) == true
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test "encode header and body with channel id other than 0":
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proc testEncodeHeaderBody(): Future[bool] {.async.} =
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var step = 0
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proc encHandler(msg: seq[byte]) {.async.} =
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check msg == fromHex("8a010873747265616d2031")
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let stream = newBufferStream(encHandler)
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let conn = newConnection(stream)
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await conn.writeMsg(17, MessageType.MsgOut, cast[seq[byte]]("stream 1"))
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await conn.close()
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result = true
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check:
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waitFor(testEncodeHeaderBody()) == true
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test "decode header with channel id 0":
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proc testDecodeHeader(): Future[bool] {.async.} =
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let stream = newBufferStream()
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let conn = newConnection(stream)
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await stream.pushTo(fromHex("000873747265616d2031"))
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let msg = await conn.readMsg()
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check msg.id == 0
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check msg.msgType == MessageType.New
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result = true
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check:
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waitFor(testDecodeHeader()) == true
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test "decode header and body with channel id 0":
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proc testDecodeHeader(): Future[bool] {.async.} =
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let stream = newBufferStream()
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let conn = newConnection(stream)
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await stream.pushTo(fromHex("021668656C6C6F2066726F6D206368616E6E656C20302121"))
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let msg = await conn.readMsg()
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check msg.id == 0
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check msg.msgType == MessageType.MsgOut
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check cast[string](msg.data) == "hello from channel 0!!"
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result = true
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check:
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waitFor(testDecodeHeader()) == true
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test "decode header and body with channel id other than 0":
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proc testDecodeHeader(): Future[bool] {.async.} =
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let stream = newBufferStream()
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let conn = newConnection(stream)
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await stream.pushTo(fromHex("8a011668656C6C6F2066726F6D206368616E6E656C20302121"))
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let msg = await conn.readMsg()
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check msg.id == 17
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check msg.msgType == MessageType.MsgOut
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check cast[string](msg.data) == "hello from channel 0!!"
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result = true
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check:
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waitFor(testDecodeHeader()) == true
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test "e2e - read/write receiver":
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proc testNewStream(): Future[bool] {.async.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
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proc connHandler(conn: Connection) {.async, gcsafe.} =
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proc handleMplexListen(stream: Connection) {.async, gcsafe.} =
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let msg = await stream.readLp()
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check cast[string](msg) == "Hello from stream!"
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await stream.close()
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let mplexListen = newMplex(conn)
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mplexListen.streamHandler = handleMplexListen
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discard mplexListen.handle()
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let transport1: TcpTransport = newTransport(TcpTransport)
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discard await transport1.listen(ma, connHandler)
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defer:
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await transport1.close()
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let transport2: TcpTransport = newTransport(TcpTransport)
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let conn = await transport2.dial(transport1.ma)
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let mplexDial = newMplex(conn)
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let stream = await mplexDial.newStream()
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let openState = cast[LPChannel](stream.stream).isOpen
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await stream.writeLp("Hello from stream!")
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await conn.close()
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check openState # not lazy
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result = true
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check:
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waitFor(testNewStream()) == true
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test "e2e - read/write receiver lazy":
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proc testNewStream(): Future[bool] {.async.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
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proc connHandler(conn: Connection) {.async, gcsafe.} =
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proc handleMplexListen(stream: Connection) {.async, gcsafe.} =
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let msg = await stream.readLp()
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check cast[string](msg) == "Hello from stream!"
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await stream.close()
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let mplexListen = newMplex(conn)
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mplexListen.streamHandler = handleMplexListen
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discard mplexListen.handle()
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let transport1: TcpTransport = newTransport(TcpTransport)
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let listenFut = await transport1.listen(ma, connHandler)
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let transport2: TcpTransport = newTransport(TcpTransport)
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let conn = await transport2.dial(transport1.ma)
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let mplexDial = newMplex(conn)
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let stream = await mplexDial.newStream("", true)
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let openState = cast[LPChannel](stream.stream).isOpen
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await stream.writeLp("Hello from stream!")
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await conn.close()
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check not openState # assert lazy
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result = true
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await mplexDial.close()
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await transport1.close()
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await listenFut
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check:
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waitFor(testNewStream()) == true
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test "e2e - write fragmented":
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proc testNewStream(): Future[bool] {.async.} =
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let
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ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
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listenJob = newFuture[void]()
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var bigseq = newSeqOfCap[uint8](MaxMsgSize * 2)
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for _ in 0..<MaxMsgSize:
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bigseq.add(uint8(rand(uint('A')..uint('z'))))
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proc connHandler(conn: Connection) {.async, gcsafe.} =
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proc handleMplexListen(stream: Connection) {.async, gcsafe.} =
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defer:
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await stream.close()
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let msg = await stream.readLp()
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check msg == bigseq
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trace "Bigseq check passed!"
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listenJob.complete()
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let mplexListen = newMplex(conn)
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mplexListen.streamHandler = handleMplexListen
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discard mplexListen.handle()
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let transport1: TcpTransport = newTransport(TcpTransport)
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let listenFut = await transport1.listen(ma, connHandler)
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let transport2: TcpTransport = newTransport(TcpTransport)
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let conn = await transport2.dial(transport1.ma)
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defer:
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await conn.close()
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let mplexDial = newMplex(conn)
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let stream = await mplexDial.newStream()
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await stream.writeLp(bigseq)
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try:
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await listenJob.wait(millis(5000))
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except AsyncTimeoutError:
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check false
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result = true
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await mplexDial.close()
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await transport1.close()
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await listenFut
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check:
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waitFor(testNewStream()) == true
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test "e2e - read/write initiator":
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proc testNewStream(): Future[bool] {.async.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
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proc connHandler(conn: Connection) {.async, gcsafe.} =
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proc handleMplexListen(stream: Connection) {.async, gcsafe.} =
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await stream.writeLp("Hello from stream!")
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await stream.close()
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let mplexListen = newMplex(conn)
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mplexListen.streamHandler = handleMplexListen
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await mplexListen.handle()
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let transport1: TcpTransport = newTransport(TcpTransport)
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let listenFut = await transport1.listen(ma, connHandler)
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let transport2: TcpTransport = newTransport(TcpTransport)
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let conn = await transport2.dial(transport1.ma)
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let mplexDial = newMplex(conn)
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let dialFut = mplexDial.handle()
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let stream = await mplexDial.newStream("DIALER")
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let msg = cast[string](await stream.readLp())
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check msg == "Hello from stream!"
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await conn.close()
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# await dialFut
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result = true
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await mplexDial.close()
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await transport1.close()
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await listenFut
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check:
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waitFor(testNewStream()) == true
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test "e2e - multiple streams":
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proc testNewStream(): Future[bool] {.async.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
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var count = 1
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var listenConn: Connection
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proc connHandler(conn: Connection) {.async, gcsafe.} =
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proc handleMplexListen(stream: Connection) {.async, gcsafe.} =
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let msg = await stream.readLp()
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check cast[string](msg) == &"stream {count}!"
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count.inc
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await stream.close()
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listenConn = conn
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let mplexListen = newMplex(conn)
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mplexListen.streamHandler = handleMplexListen
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await mplexListen.handle()
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let transport1 = newTransport(TcpTransport)
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let listenFut = await transport1.listen(ma, connHandler)
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let transport2: TcpTransport = newTransport(TcpTransport)
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let conn = await transport2.dial(transport1.ma)
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let mplexDial = newMplex(conn)
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for i in 1..10:
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let stream = await mplexDial.newStream()
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await stream.writeLp(&"stream {i}!")
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await stream.close()
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await sleepAsync(1.seconds) # allow messages to get to the handler
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await conn.close() # TODO: chronos sockets don't seem to have half-closed functionality
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await mplexDial.close()
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await listenConn.close()
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await transport1.close()
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await listenFut
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result = true
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check:
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waitFor(testNewStream()) == true
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test "e2e - multiple read/write streams":
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proc testNewStream(): Future[bool] {.async.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
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var count = 1
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var listenFut: Future[void]
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var listenConn: Connection
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proc connHandler(conn: Connection) {.async, gcsafe.} =
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listenConn = conn
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proc handleMplexListen(stream: Connection) {.async, gcsafe.} =
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let msg = await stream.readLp()
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check cast[string](msg) == &"stream {count} from dialer!"
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await stream.writeLp(&"stream {count} from listener!")
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count.inc
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await stream.close()
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let mplexListen = newMplex(conn)
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mplexListen.streamHandler = handleMplexListen
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listenFut = mplexListen.handle()
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listenFut.addCallback(proc(udata: pointer) {.gcsafe.}
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= trace "completed listener")
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let transport1: TcpTransport = newTransport(TcpTransport)
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let transportFut = await transport1.listen(ma, connHandler)
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let transport2: TcpTransport = newTransport(TcpTransport)
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let conn = await transport2.dial(transport1.ma)
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let mplexDial = newMplex(conn)
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let dialFut = mplexDial.handle()
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dialFut.addCallback(proc(udata: pointer = nil) {.gcsafe.}
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= trace "completed dialer")
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for i in 1..10:
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let stream = await mplexDial.newStream("dialer stream")
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await stream.writeLp(&"stream {i} from dialer!")
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let msg = await stream.readLp()
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check cast[string](msg) == &"stream {i} from listener!"
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await stream.close()
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await conn.close()
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await listenConn.close()
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await allFutures(dialFut, listenFut)
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await transport1.close()
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await transportFut
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result = true
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check:
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waitFor(testNewStream()) == true
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test "half closed - channel should close for write":
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proc testClosedForWrite(): Future[void] {.async.} =
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proc writeHandler(data: seq[byte]) {.async, gcsafe.} = discard
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let chann = newChannel(1, newConnection(newBufferStream(writeHandler)), true)
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await chann.close()
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await chann.write("Hello")
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expect LPStreamEOFError:
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waitFor(testClosedForWrite())
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test "half closed - channel should close for read by remote":
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proc testClosedForRead(): Future[void] {.async.} =
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proc writeHandler(data: seq[byte]) {.async, gcsafe.} = discard
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let chann = newChannel(1, newConnection(newBufferStream(writeHandler)), true)
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await chann.pushTo(cast[seq[byte]]("Hello!"))
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await chann.closedByRemote()
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discard await chann.read() # this should work, since there is data in the buffer
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discard await chann.read() # this should throw
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expect LPStreamEOFError:
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waitFor(testClosedForRead())
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test "jitter - channel should be able to handle erratic read/writes":
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proc test(): Future[bool] {.async.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
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var complete = newFuture[void]()
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const MsgSize = 1024
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proc connHandler(conn: Connection) {.async, gcsafe.} =
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proc handleMplexListen(stream: Connection) {.async, gcsafe.} =
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let msg = await stream.readLp()
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check msg.len == MsgSize
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await stream.close()
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complete.complete()
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let mplexListen = newMplex(conn)
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mplexListen.streamHandler = handleMplexListen
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discard mplexListen.handle()
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let transport1: TcpTransport = newTransport(TcpTransport)
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let listenFut = await transport1.listen(ma, connHandler)
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let transport2: TcpTransport = newTransport(TcpTransport)
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let conn = await transport2.dial(transport1.ma)
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let mplexDial = newMplex(conn)
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let stream = await mplexDial.newStream()
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var bigseq = newSeqOfCap[uint8](MaxMsgSize + 1)
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for _ in 0..<MsgSize: # write one less than max size
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bigseq.add(uint8(rand(uint('A')..uint('z'))))
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## create lenght prefixed libp2p frame
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var buf = initVBuffer()
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buf.writeSeq(bigseq)
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buf.finish()
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## create mplex header
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var mplexBuf = initVBuffer()
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mplexBuf.writePBVarint((1.uint shl 3) or ord(MessageType.MsgOut).uint)
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mplexBuf.writePBVarint(buf.buffer.len.uint) # size should be always sent
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await conn.write(mplexBuf.buffer)
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proc writer() {.async.} =
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var sent = 0
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randomize()
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let total = buf.buffer.len
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const min = 20
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const max = 50
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while sent < total:
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var size = rand(min..max)
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size = if size > buf.buffer.len: buf.buffer.len else: size
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var send = buf.buffer[0..<size]
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await conn.write(send)
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sent += size
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buf.buffer = buf.buffer[size..^1]
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await writer()
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await stream.close()
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await conn.close()
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await complete
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await transport1.close()
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await listenFut
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result = true
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check:
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waitFor(test()) == true
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test "jitter - channel should handle 1 byte read/write":
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proc test(): Future[bool] {.async.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
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var complete = newFuture[void]()
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const MsgSize = 512
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proc connHandler(conn: Connection) {.async, gcsafe.} =
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proc handleMplexListen(stream: Connection) {.async, gcsafe.} =
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let msg = await stream.readLp()
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check msg.len == MsgSize
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await stream.close()
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complete.complete()
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let mplexListen = newMplex(conn)
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mplexListen.streamHandler = handleMplexListen
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discard mplexListen.handle()
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let transport1: TcpTransport = newTransport(TcpTransport)
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let listenFut = await transport1.listen(ma, connHandler)
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let transport2: TcpTransport = newTransport(TcpTransport)
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let conn = await transport2.dial(transport1.ma)
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let mplexDial = newMplex(conn)
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let stream = await mplexDial.newStream()
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var bigseq = newSeqOfCap[uint8](MaxMsgSize + 1)
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for _ in 0..<MsgSize: # write one less than max size
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bigseq.add(uint8(rand(uint('A')..uint('z'))))
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## create lenght prefixed libp2p frame
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var buf = initVBuffer()
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buf.writeSeq(bigseq)
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buf.finish()
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## create mplex header
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var mplexBuf = initVBuffer()
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mplexBuf.writePBVarint((1.uint shl 3) or ord(MessageType.MsgOut).uint)
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mplexBuf.writePBVarint(buf.buffer.len.uint) # size should be always sent
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await conn.write(mplexBuf.buffer)
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proc writer() {.async.} =
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for i in buf.buffer:
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await conn.write(@[i])
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await writer()
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await stream.close()
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await conn.close()
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await complete
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await transport1.close()
|
|
await listenFut
|
|
|
|
result = true
|
|
|
|
check:
|
|
waitFor(test()) == true
|
|
|
|
test "reset - channel should fail reading":
|
|
proc testResetRead(): Future[void] {.async.} =
|
|
proc writeHandler(data: seq[byte]) {.async, gcsafe.} = discard
|
|
let chann = newChannel(1, newConnection(newBufferStream(writeHandler)), true)
|
|
await chann.reset()
|
|
var data = await chann.read()
|
|
doAssert(len(data) == 1)
|
|
|
|
expect LPStreamEOFError:
|
|
waitFor(testResetRead())
|
|
|
|
test "reset - channel should fail writing":
|
|
proc testResetWrite(): Future[void] {.async.} =
|
|
proc writeHandler(data: seq[byte]) {.async, gcsafe.} = discard
|
|
let chann = newChannel(1, newConnection(newBufferStream(writeHandler)), true)
|
|
await chann.reset()
|
|
await chann.write(cast[seq[byte]]("Hello!"))
|
|
|
|
expect LPStreamEOFError:
|
|
waitFor(testResetWrite())
|
|
|
|
test "should not allow pushing data to channel when remote end closed":
|
|
proc testResetWrite(): Future[void] {.async.} =
|
|
proc writeHandler(data: seq[byte]) {.async, gcsafe.} = discard
|
|
let chann = newChannel(1, newConnection(newBufferStream(writeHandler)), true)
|
|
await chann.closedByRemote()
|
|
await chann.pushTo(@[byte(1)])
|
|
|
|
expect LPStreamEOFError:
|
|
waitFor(testResetWrite())
|