nim-chronos/tests/testtime.nim

130 lines
3.8 KiB
Nim

# Chronos Test Suite
# (c) Copyright 2018-Present
# Status Research & Development GmbH
#
# Licensed under either of
# Apache License, version 2.0, (LICENSE-APACHEv2)
# MIT license (LICENSE-MIT)
import std/os
import unittest2
import ../chronos, ../chronos/timer
{.used.}
static:
doAssert Moment.high - Moment.low == Duration.high
doAssert Moment.low.epochSeconds == 0
doAssert Moment.low.epochNanoSeconds == 0
suite "Asynchronous timers & steps test suite":
const TimersCount = 10
proc timeWorker(time: Duration): Future[Duration] {.async.} =
var st = Moment.now()
await sleepAsync(time)
var et = Moment.now()
result = et - st
proc waitAll[T](futs: seq[Future[T]]): Future[void] =
var counter = len(futs)
var retFuture = newFuture[void]("waitAll")
proc cb(udata: pointer) =
dec(counter)
if counter == 0:
retFuture.complete()
for fut in futs:
fut.addCallback(cb)
return retFuture
proc test(timeout: Duration): Future[Duration] {.async.} =
var workers = newSeq[Future[Duration]](TimersCount)
for i in 0..<TimersCount:
workers[i] = timeWorker(timeout)
await waitAll(workers)
var sum: Duration
for i in 0..<TimersCount:
var time = workers[i].read()
sum = sum + time
result = sum div 10'i64
proc testTimer(): bool =
let a = Moment.now()
waitFor(sleepAsync(1000.milliseconds))
let b = Moment.now()
let d = b - a
result = (d >= 1000.milliseconds) and (d <= 3000.milliseconds)
if not result:
echo d
test "Timer reliability test [" & asyncTimer & "]":
check testTimer() == true
test $TimersCount & " timers with 10ms timeout":
var res = waitFor(test(10.milliseconds))
check (res >= 10.milliseconds) and (res <= 100.milliseconds)
test $TimersCount & " timers with 100ms timeout":
var res = waitFor(test(100.milliseconds))
check (res >= 100.milliseconds) and (res <= 1000.milliseconds)
test $TimersCount & " timers with 1000ms timeout":
var res = waitFor(test(1000.milliseconds))
check (res >= 1000.milliseconds) and (res <= 5000.milliseconds)
test "Timer stringification test":
check:
$weeks(1) == "1w"
$days(1) == "1d"
$hours(1) == "1h"
$minutes(1) == "1m"
$seconds(1) == "1s"
$milliseconds(1) == "1ms"
$microseconds(1) == "1us"
$nanoseconds(1) == "1ns"
$(weeks(1) + days(1)) == "1w1d"
$(days(1) + hours(1)) == "1d1h"
$(hours(1) + minutes(1)) == "1h1m"
$(minutes(1) + seconds(1)) == "1m1s"
$(seconds(1) + milliseconds(1)) == "1s1ms"
$(milliseconds(1) + microseconds(1)) == "1ms1us"
$nanoseconds(1_000_000_000) == "1s"
$nanoseconds(1_900_000_000) == "1s900ms"
$nanoseconds(1_000_900_000) == "1s900us"
$nanoseconds(1_000_000_900) == "1s900ns"
$nanoseconds(1_800_700_000) == "1s800ms700us"
$nanoseconds(1_800_000_600) == "1s800ms600ns"
nanoseconds(1_800_000_600).toString(0) == ""
nanoseconds(1_800_000_600).toString(1) == "1s"
nanoseconds(1_800_000_600).toString(2) == "1s800ms"
test "Asynchronous steps test":
var fut1 = stepsAsync(1)
var fut2 = stepsAsync(2)
var fut3 = stepsAsync(3)
check:
fut1.completed() == false
fut2.completed() == false
fut3.completed() == false
# We need `fut` because `stepsAsync` do not power `poll()` anymore.
block:
var fut {.used.} = sleepAsync(50.milliseconds)
poll()
check:
fut1.completed() == true
fut2.completed() == false
fut3.completed() == false
block:
var fut {.used.} = sleepAsync(50.milliseconds)
poll()
check:
fut2.completed() == true
fut3.completed() == false
block:
var fut {.used.} = sleepAsync(50.milliseconds)
poll()
check:
fut3.completed() == true