mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-24 19:30:06 +01:00
56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
package logstorage
|
|
|
|
import (
|
|
"math"
|
|
"testing"
|
|
)
|
|
|
|
func TestHistogramQuantile(t *testing.T) {
|
|
f := func(a []float64, phi, qExpected float64) {
|
|
t.Helper()
|
|
|
|
var h histogram
|
|
for _, f := range a {
|
|
h.update(f)
|
|
}
|
|
q := h.quantile(phi)
|
|
|
|
if math.IsNaN(qExpected) {
|
|
if !math.IsNaN(q) {
|
|
t.Fatalf("unexpected result for q=%v, phi=%v; got %v; want %v", a, phi, q, qExpected)
|
|
}
|
|
} else if q != qExpected {
|
|
t.Fatalf("unexpected result for q=%v, phi=%v; got %v; want %v", a, phi, q, qExpected)
|
|
}
|
|
}
|
|
|
|
f(nil, -1, nan)
|
|
f(nil, 0, nan)
|
|
f(nil, 0.5, nan)
|
|
f(nil, 1, nan)
|
|
f(nil, 10, nan)
|
|
|
|
f([]float64{123}, -1, 123)
|
|
f([]float64{123}, 0, 123)
|
|
f([]float64{123}, 0.5, 123)
|
|
f([]float64{123}, 1, 123)
|
|
f([]float64{123}, 10, 123)
|
|
|
|
f([]float64{5, 1}, -1, 1)
|
|
f([]float64{5, 1}, 0, 1)
|
|
f([]float64{5, 1}, 0.5-1e-5, 1)
|
|
f([]float64{5, 1}, 0.5, 5)
|
|
f([]float64{5, 1}, 1, 5)
|
|
f([]float64{5, 1}, 10, 5)
|
|
|
|
f([]float64{5, 1, 3}, -1, 1)
|
|
f([]float64{5, 1, 3}, 0, 1)
|
|
f([]float64{5, 1, 3}, 1.0/3-1e-5, 1)
|
|
f([]float64{5, 1, 3}, 1.0/3, 3)
|
|
f([]float64{5, 1, 3}, 2.0/3-1e-5, 3)
|
|
f([]float64{5, 1, 3}, 2.0/3, 5)
|
|
f([]float64{5, 1, 3}, 1-1e-5, 5)
|
|
f([]float64{5, 1, 3}, 1, 5)
|
|
f([]float64{5, 1, 3}, 10, 5)
|
|
}
|