56 lines
1.4 KiB
Nim
56 lines
1.4 KiB
Nim
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import chronos
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import ../libp2p/utils/heartbeat
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import ./helpers
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# MacOs has some nasty jitter when sleeping
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# (up to 7 ms), so we skip test there
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when not defined(macosx):
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suite "Heartbeat":
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asyncTest "simple heartbeat":
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var i = 0
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proc t() {.async.} =
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heartbeat "shouldn't see this", 30.milliseconds:
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i.inc()
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let hb = t()
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await sleepAsync(300.milliseconds)
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await hb.cancelAndWait()
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check:
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i in 9..11
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asyncTest "change heartbeat period on the fly":
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var i = 0
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proc t() {.async.} =
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var period = 30.milliseconds
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heartbeat "shouldn't see this", period:
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i.inc()
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if i >= 4:
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period = 75.milliseconds
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let hb = t()
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await sleepAsync(500.milliseconds)
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await hb.cancelAndWait()
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# 4x 30 ms heartbeat = 120ms
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# (500 ms - 120 ms) / 75ms = 5x 75ms
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# total 9
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check:
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i in 8..10
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asyncTest "catch up on slow heartbeat":
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var i = 0
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proc t() {.async.} =
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heartbeat "this is normal", 30.milliseconds:
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if i < 3:
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await sleepAsync(150.milliseconds)
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i.inc()
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let hb = t()
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await sleepAsync(900.milliseconds)
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await hb.cancelAndWait()
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# 3x (150ms heartbeat + 30ms interval) = 540ms
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# 360ms remaining, / 30ms = 12x
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# total 15
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check:
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i in 14..16
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