nim-libp2p-experimental/tests/testfuture.nim

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2023-02-07 17:50:42 +00:00
# Nim-Libp2p
# Copyright (c) 2023 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
# * MIT license ([LICENSE-MIT](LICENSE-MIT))
# at your option.
# This file may not be copied, modified, or distributed except according to
# those terms.
import chronos
import ../libp2p/utils/future
import ./helpers
suite "Future":
asyncTest "anyCompleted must complete with first completed future":
proc fut1() {.async.} =
await sleepAsync(100.milliseconds)
proc fut2() {.async.} =
await sleepAsync(200.milliseconds)
proc fut3() {.async.} =
raise newException(CatchableError, "fut3")
var f1 = fut1()
var f2 = fut2()
var f3 = fut3()
var f = await anyCompleted(@[f1, f2, f3])
check f == f1
asyncTest "anyCompleted must fail with empty list":
expect AllFuturesFailedError:
discard await anyCompleted(newSeq[Future[void]]())
asyncTest "anyCompleted must fail if all futures fail":
proc fut1() {.async.} =
raise newException(CatchableError, "fut1")
proc fut2() {.async.} =
raise newException(CatchableError, "fut2")
proc fut3() {.async.} =
raise newException(CatchableError, "fut3")
var f1 = fut1()
var f2 = fut2()
var f3 = fut3()
expect AllFuturesFailedError:
discard await anyCompleted(@[f1, f2, f3])
asyncTest "anyCompleted with timeout":
proc fut1() {.async.} =
await sleepAsync(100.milliseconds)
proc fut2() {.async.} =
await sleepAsync(200.milliseconds)
proc fut3() {.async.} =
raise newException(ValueError, "fut3")
var f1 = fut1()
var f2 = fut2()
var f3 = fut3()
var f = anyCompleted(@[f1, f2, f3])
if not await f.withTimeout(50.milliseconds):
f.cancel()
check f.cancelled()