func TestScaledHistogram(t *testing.T) {
quantiles := []int{50, 90, 99}
scale := int64(10)
metricName := "test_scaled_histogram"
var h metrics.Histogram
h = expvar.NewHistogram(metricName, 0, 1000, 3, quantiles...)
h = metrics.NewScaledHistogram(h, scale)
const seed, mean, stdev = 333, 500, 100 // input values
populateNormalHistogram(t, h, seed, mean, stdev) // will be scaled down
assertExpvarNormalHistogram(t, metricName, mean/scale, stdev/scale, quantiles)
}
func TestScaledHistogram(t *testing.T) {
var (
quantiles = []int{50, 90, 99}
scale = int64(10)
metricName = "test_scaled_histogram"
)
var h metrics.Histogram
h = expvar.NewHistogram(metricName, 0, 1000, 3, quantiles...)
h = metrics.NewScaledHistogram(h, scale)
h = h.With(metrics.Field{Key: "a", Value: "b"})
const seed, mean, stdev = 333, 500, 100 // input values
teststat.PopulateNormalHistogram(t, h, seed, mean, stdev) // will be scaled down
assertExpvarNormalHistogram(t, metricName, mean/scale, stdev/scale, quantiles)
}