nim-libp2p-experimental/tests/testmultistream.nim

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2019-08-30 05:16:55 +00:00
import unittest, strutils, sequtils, sugar
import chronos
import ../libp2p/connection, ../libp2p/multistream,
../libp2p/stream, ../libp2p/connection, ../libp2p/multiaddress,
../libp2p/transport, ../libp2p/tcptransport, ../libp2p/protocol
## Mock stream for select test
type
TestSelectStream = ref object of LPStream
step*: int
method readExactly*(s: TestSelectStream,
pbytes: pointer,
nbytes: int): Future[void] {.async.} =
case s.step:
of 1:
var buf = newSeq[byte](1)
buf[0] = 19
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
s.step = 2
of 2:
var buf = "/multistream/1.0.0\n"
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
s.step = 3
of 3:
var buf = newSeq[byte](1)
buf[0] = 18
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
s.step = 4
of 4:
var buf = "/test/proto/1.0.0\n"
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
else:
copyMem(cast[pointer](cast[uint](pbytes)),
cstring("\0x3na\n"),
"\0x3na\n".len())
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,
nbytes: int): Future[void] {.async.} =
case s.step:
of 1:
var buf = newSeq[byte](1)
buf[0] = 19
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
s.step = 2
of 2:
var buf = "/multistream/1.0.0\n"
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
s.step = 3
of 3:
var buf = newSeq[byte](1)
buf[0] = 3
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
s.step = 4
of 4:
var buf = "ls\n"
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
else:
copyMem(cast[pointer](cast[uint](pbytes)),
cstring("\0x3na\n"),
"\0x3na\n".len())
method write*(s: TestLsStream, msg: seq[byte], msglen = -1) {.async.} =
if s.step == 4:
await s.ls(msg)
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,
nbytes: int): Future[void] {.async.} =
case s.step:
of 1:
var buf = newSeq[byte](1)
buf[0] = 19
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
s.step = 2
of 2:
var buf = "/multistream/1.0.0\n"
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
s.step = 3
of 3:
var buf = newSeq[byte](1)
buf[0] = 18
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
s.step = 4
of 4:
var buf = "/test/proto/1.0.0\n"
copyMem(cast[pointer](cast[uint](pbytes)), addr buf[0], buf.len())
else:
copyMem(cast[pointer](cast[uint](pbytes)),
cstring("\0x3na\n"),
"\0x3na\n".len())
method write*(s: TestNaStream, msg: string, msglen = -1) {.async.} =
if s.step == 4:
await s.na(msg)
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")
check:
waitFor(testSelect()) == true
test "test handle custom proto":
proc testHandle(): Future[bool] {.async.} =
let ms = newMultistream()
let conn = newConnection(newTestSelectStream())
var protocol: LPProtocol
proc testHandler(protocol: LPProtocol,
conn: Connection,
proto: string): Future[void] {.async, gcsafe.} =
check proto == "/test/proto/1.0.0"
ms.addHandler("/test/proto/1.0.0", protocol, testHandler)
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()
var protocol: LPProtocol
proc testHandler(protocol: LPProtocol,
conn: Connection,
proto: string): Future[void] {.async, gcsafe.} = discard
ms.addHandler("/test/proto1/1.0.0", protocol, testHandler)
ms.addHandler("/test/proto2/1.0.0", protocol, testHandler)
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()
var protocol: LPProtocol
proc testHandler(protocol: LPProtocol,
conn: Connection,
proto: string): Future[void] {.async, gcsafe.} = discard
ms.addHandler("/unabvailable/proto/1.0.0", protocol, testHandler)
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")
var protocol: LPProtocol
proc testHandler(protocol: LPProtocol,
conn: Connection,
proto: string): Future[void] {.async, gcsafe.} =
check proto == "/test/proto/1.0.0"
await conn.writeLp("Hello!")
await conn.close()
let msListen = newMultistream()
msListen.addHandler("/test/proto/1.0.0", protocol, testHandler)
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)
let res = await msDial.select(conn, "/test/proto/1.0.0")
check res == true
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()
var protocol: LPProtocol
proc testHandler(protocol: LPProtocol,
conn: Connection,
proto: string): Future[void] {.async.} = discard
msListen.addHandler("/test/proto1/1.0.0", protocol, testHandler)
msListen.addHandler("/test/proto2/1.0.0", protocol, testHandler)
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