func TestTimerFast(t *testing.T) {
h := generic.NewSimpleHistogram()
metrics.NewTimer(h).ObserveDuration()
tolerance := 0.050
if want, have := 0.000, h.ApproximateMovingAverage(); math.Abs(want-have) > tolerance {
t.Errorf("want %.3f, have %.3f", want, have)
}
}
func TestTimerSlow(t *testing.T) {
h := generic.NewSimpleHistogram()
timer := metrics.NewTimer(h)
time.Sleep(250 * time.Millisecond)
timer.ObserveDuration()
tolerance := 0.050
if want, have := 0.250, h.ApproximateMovingAverage(); math.Abs(want-have) > tolerance {
t.Errorf("want %.3f, have %.3f", want, have)
}
}