316 lines
11 KiB
Nim
316 lines
11 KiB
Nim
import unittest, sequtils, sugar, strformat, options, strformat
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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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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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if msg.isSome:
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check msg.get().id == 0
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check msg.get().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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if msg.isSome:
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check msg.get().id == 0
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check msg.get().msgType == MessageType.MsgOut
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check cast[string](msg.get().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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if msg.isSome:
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check msg.get().id == 17
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check msg.get().msgType == MessageType.MsgOut
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check cast[string](msg.get().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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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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await stream.writeLp("Hello from stream!")
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await conn.close()
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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 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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discard 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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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: TcpTransport = newTransport(TcpTransport)
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discard 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 conn.close()
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await listenConn.close()
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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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asyncCheck 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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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 "reset - channel should fail reading":
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proc testResetRead(): 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.reset()
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asyncDiscard chann.read()
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expect LPStreamEOFError:
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waitFor(testResetRead())
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test "reset - channel should fail writing":
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proc testResetWrite(): 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.reset()
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await chann.write(cast[seq[byte]]("Hello!"))
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expect LPStreamEOFError:
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waitFor(testResetWrite())
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test "should not allow pushing data to channel when remote end closed":
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proc testResetWrite(): 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.closedByRemote()
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await chann.pushTo(@[byte(1)])
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expect LPStreamEOFError:
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waitFor(testResetWrite())
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