nim-libp2p/tests/testtransport.nim

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{.used.}
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import unittest
import chronos
import ../libp2p/[connection,
transports/transport,
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transports/tcptransport,
multiaddress,
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wire]
import ./helpers
suite "TCP transport":
teardown:
for tracker in testTrackers():
check tracker.isLeaked() == false
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test "test listener: handle write":
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proc testListener(): Future[bool] {.async, gcsafe.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
let handlerWait = newFuture[void]()
proc connHandler(conn: Connection) {.async, gcsafe.} =
await conn.write(cstring("Hello!"), 6)
await conn.close()
handlerWait.complete()
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let transport: TcpTransport = newTransport(TcpTransport)
asyncCheck transport.listen(ma, connHandler)
let streamTransport = await connect(transport.ma)
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let msg = await streamTransport.read(6)
await handlerWait.wait(5000.millis) # when no issues will not wait that long!
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await streamTransport.closeWait()
await transport.close()
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result = cast[string](msg) == "Hello!"
check:
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waitFor(testListener()) == true
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test "test listener: handle read":
proc testListener(): Future[bool] {.async.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
let handlerWait = newFuture[void]()
proc connHandler(conn: Connection) {.async, gcsafe.} =
var msg = newSeq[byte](6)
await conn.readExactly(addr msg[0], 6)
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check cast[string](msg) == "Hello!"
await conn.close()
handlerWait.complete()
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let transport: TcpTransport = newTransport(TcpTransport)
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asyncCheck await transport.listen(ma, connHandler)
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let streamTransport: StreamTransport = await connect(transport.ma)
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let sent = await streamTransport.write("Hello!", 6)
await handlerWait.wait(5000.millis) # when no issues will not wait that long!
await streamTransport.closeWait()
await transport.close()
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result = sent == 6
check:
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waitFor(testListener()) == true
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test "test dialer: handle write":
proc testDialer(address: TransportAddress): Future[bool] {.async.} =
let handlerWait = newFuture[void]()
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proc serveClient(server: StreamServer,
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transp: StreamTransport) {.async, gcsafe.} =
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var wstream = newAsyncStreamWriter(transp)
await wstream.write("Hello!")
await wstream.finish()
await wstream.closeWait()
await transp.closeWait()
server.stop()
server.close()
handlerWait.complete()
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var server = createStreamServer(address, serveClient, {ReuseAddr})
server.start()
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let ma: MultiAddress = MultiAddress.init(server.sock.getLocalAddress())
let transport: TcpTransport = newTransport(TcpTransport)
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let conn = await transport.dial(ma)
var msg = newSeq[byte](6)
await conn.readExactly(addr msg[0], 6)
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result = cast[string](msg) == "Hello!"
await handlerWait.wait(5000.millis) # when no issues will not wait that long!
await conn.close()
await transport.close()
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server.stop()
server.close()
await server.join()
check:
waitFor(testDialer(initTAddress("0.0.0.0:0"))) == true
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test "test dialer: handle write":
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proc testDialer(address: TransportAddress): Future[bool] {.async, gcsafe.} =
let handlerWait = newFuture[void]()
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proc serveClient(server: StreamServer,
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transp: StreamTransport) {.async, gcsafe.} =
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var rstream = newAsyncStreamReader(transp)
let msg = await rstream.read(6)
check cast[string](msg) == "Hello!"
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await rstream.closeWait()
await transp.closeWait()
server.stop()
server.close()
handlerWait.complete()
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var server = createStreamServer(address, serveClient, {ReuseAddr})
server.start()
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let ma: MultiAddress = MultiAddress.init(server.sock.getLocalAddress())
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let transport: TcpTransport = newTransport(TcpTransport)
let conn = await transport.dial(ma)
await conn.write(cstring("Hello!"), 6)
result = true
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await handlerWait.wait(5000.millis) # when no issues will not wait that long!
await conn.close()
await transport.close()
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server.stop()
server.close()
await server.join()
check:
waitFor(testDialer(initTAddress("0.0.0.0:0"))) == true
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test "e2e: handle write":
proc testListenerDialer(): Future[bool] {.async.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
let handlerWait = newFuture[void]()
proc connHandler(conn: Connection) {.async, gcsafe.} =
await conn.write(cstring("Hello!"), 6)
await conn.close()
handlerWait.complete()
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let transport1: TcpTransport = newTransport(TcpTransport)
asyncCheck transport1.listen(ma, connHandler)
let transport2: TcpTransport = newTransport(TcpTransport)
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let conn = await transport2.dial(transport1.ma)
var msg = newSeq[byte](6)
await conn.readExactly(addr msg[0], 6)
await handlerWait.wait(5000.millis) # when no issues will not wait that long!
await conn.close()
await transport2.close()
await transport1.close()
result = cast[string](msg) == "Hello!"
check:
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waitFor(testListenerDialer()) == true
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test "e2e: handle read":
proc testListenerDialer(): Future[bool] {.async.} =
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let ma: MultiAddress = Multiaddress.init("/ip4/0.0.0.0/tcp/0")
let handlerWait = newFuture[void]()
proc connHandler(conn: Connection) {.async, gcsafe.} =
var msg = newSeq[byte](6)
await conn.readExactly(addr msg[0], 6)
check cast[string](msg) == "Hello!"
await conn.close()
handlerWait.complete()
let transport1: TcpTransport = newTransport(TcpTransport)
asyncCheck transport1.listen(ma, connHandler)
let transport2: TcpTransport = newTransport(TcpTransport)
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let conn = await transport2.dial(transport1.ma)
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await conn.write(cstring("Hello!"), 6)
await handlerWait.wait(5000.millis) # when no issues will not wait that long!
await conn.close()
await transport2.close()
await transport1.close()
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result = true
check:
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waitFor(testListenerDialer()) == true