nim-libp2p/tests/testheartbeat.nim

56 lines
1.4 KiB
Nim

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