nim-libp2p/tests/testtransport.nim

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import unittest
import chronos
import ../libp2p/connection, ../libp2p/transport, ../libp2p/tcptransport,
../libp2p/multiaddress, ../libp2p/wire
suite "TCP transport":
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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("/ip4/127.0.0.1/tcp/53335")
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proc connHandler(conn: Connection): Future[void] {.async, gcsafe.} =
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result = conn.write(cstring("Hello!"), 6)
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let transport: TcpTransport = newTransport(TcpTransport)
await transport.listen(ma, connHandler)
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let streamTransport: StreamTransport = await connect(ma)
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let msg = await streamTransport.read(6)
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await transport.close()
await streamTransport.closeWait()
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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.} =
let ma: MultiAddress = Multiaddress.init("/ip4/127.0.0.1/tcp/53336")
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proc connHandler(conn: Connection): Future[void] {.async, gcsafe.} =
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let msg = await conn.read(6)
check cast[string](msg) == "Hello!"
let transport: TcpTransport = newTransport(TcpTransport)
await transport.listen(ma, connHandler)
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let streamTransport: StreamTransport = await connect(ma)
let sent = await streamTransport.write("Hello!", 6)
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.} =
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()
var server = createStreamServer(address, serveClient, {ReuseAddr})
server.start()
let ma: MultiAddress = Multiaddress.init("/ip4/127.0.0.1/tcp/53337")
let transport: TcpTransport = newTransport(TcpTransport)
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let conn = await transport.dial(ma)
let msg = await conn.read(6)
result = cast[string](msg) == "Hello!"
server.stop()
server.close()
await server.join()
check waitFor(testDialer(initTAddress("127.0.0.1:53337"))) == true
test "test dialer: handle write":
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proc testDialer(address: TransportAddress): Future[bool] {.async, gcsafe.} =
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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()
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var server = createStreamServer(address, serveClient, {ReuseAddr})
server.start()
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let ma: MultiAddress = Multiaddress.init("/ip4/127.0.0.1/tcp/53337")
let transport: TcpTransport = newTransport(TcpTransport)
let conn = await transport.dial(ma)
await conn.write(cstring("Hello!"), 6)
result = true
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server.stop()
server.close()
await server.join()
check waitFor(testDialer(initTAddress("127.0.0.1:53337"))) == true
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test "e2e: handle write":
proc testListenerDialer(): Future[bool] {.async.} =
let ma: MultiAddress = Multiaddress.init("/ip4/127.0.0.1/tcp/53339")
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proc connHandler(conn: Connection): Future[void] {.async, gcsafe.} =
result = conn.write(cstring("Hello!"), 6)
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let transport1: TcpTransport = newTransport(TcpTransport)
await transport1.listen(ma, connHandler)
let transport2: TcpTransport = newTransport(TcpTransport)
let conn = await transport2.dial(ma)
let msg = await conn.read(6)
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.} =
let ma: MultiAddress = Multiaddress.init("/ip4/127.0.0.1/tcp/53340")
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proc connHandler(conn: Connection): Future[void] {.async, gcsafe.} =
let msg = await conn.read(6)
check cast[string](msg) == "Hello!"
let transport1: TcpTransport = newTransport(TcpTransport)
await transport1.listen(ma, connHandler)
let transport2: TcpTransport = newTransport(TcpTransport)
let conn = await transport2.dial(ma)
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await conn.write(cstring("Hello!"), 6)
await transport1.close()
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result = true
check:
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waitFor(testListenerDialer()) == true