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41 lines
1.2 KiB
Nim
41 lines
1.2 KiB
Nim
import asyncdispatch, os, times
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proc doubleSleep(hardSleep: int) {.async.} =
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await sleepAsync(50)
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sleep(hardSleep)
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template assertTime(target, timeTook: float): untyped {.dirty.} =
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doAssert(timeTook*1000 > target - 1000, "Took too short, should've taken " &
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$target & "ms, but took " & $(timeTook*1000) & "ms")
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doAssert(timeTook*1000 < target + 1000, "Took too long, should've taken " &
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$target & "ms, but took " & $(timeTook*1000) & "ms")
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var
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start: float
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fut: Future[void]
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# NOTE: this uses poll(3000) to limit timing error potential.
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start = epochTime()
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fut = sleepAsync(40) and sleepAsync(100) and doubleSleep(20)
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while not fut.finished:
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poll(1000)
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assertTime(150, epochTime() - start)
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start = epochTime()
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fut = sleepAsync(40) and sleepAsync(100) and doubleSleep(50)
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while not fut.finished:
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poll(1000)
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assertTime(200, epochTime() - start)
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start = epochTime()
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fut = sleepAsync(40) and sleepAsync(100) and doubleSleep(20) and sleepAsync(200)
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while not fut.finished:
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poll(1000)
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assertTime(300, epochTime() - start)
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start = epochTime()
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fut = (sleepAsync(40) and sleepAsync(100) and doubleSleep(20)) or sleepAsync(300)
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while not fut.finished:
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poll(1000)
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assertTime(150, epochTime() - start)
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