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time: increase slop for TestTicker
Also sleep a bit each time it fails, in case the system is overloaded. Fixes #37332 Change-Id: Iabf3d0a27b5834c1e2a87c826b6206146b4f62c5 Reviewed-on: https://go-review.googlesource.com/c/go/+/313849 Trust: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com>
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@ -52,9 +52,14 @@ func TestTicker(t *testing.T) {
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t1 := Now()
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t1 := Now()
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dt := t1.Sub(t0)
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dt := t1.Sub(t0)
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target := 3 * delta * Duration(count/2)
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target := 3 * delta * Duration(count/2)
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slop := target * 2 / 10
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slop := target * 3 / 10
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if dt < target-slop || dt > target+slop {
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if dt < target-slop || dt > target+slop {
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errs = append(errs, fmt.Sprintf("%d %s ticks took %s, expected [%s,%s]", count, delta, dt, target-slop, target+slop))
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errs = append(errs, fmt.Sprintf("%d %s ticks then %d %s ticks took %s, expected [%s,%s]", count/2, delta, count/2, delta*2, dt, target-slop, target+slop))
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if dt > target+slop {
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// System may be overloaded; sleep a bit
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// in the hopes it will recover.
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Sleep(Second / 2)
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}
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continue
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continue
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}
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}
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// Now test that the ticker stopped.
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// Now test that the ticker stopped.
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