VictoriaMetrics/lib/protoparser/datadogsketches/parser_test.go
Aliaksandr Valialkin 541b644d3d
app/{vmagent,vminsert}: follow-up after a1d1ccd6f2
- Document the change at docs/CHANGELOG.md
- Copy changes from docs/Single-server-VictoriaMetrics.md to README.md
- Add missing handler for processing multitenant requests ( https://docs.victoriametrics.com/vmagent/#multitenancy )
- Substitute github.com/stretchr/testify dependency with 3 lines of code in the added tests
- Comment unclear code at lib/protoparser/datadogsketches/parser.go , so @AndrewChubatiuk could update it
  and add permalinks to the original source code there.
- Various code cleanups

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5584
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3091
2024-02-07 01:28:05 +02:00

30 lines
694 B
Go

package datadogsketches
import (
"math"
"testing"
)
func TestPointsForQuantile(t *testing.T) {
f := func(d *Dogsketch, q float64, vExpected float64) {
t.Helper()
v := d.valueForQuantile(q)
if math.Abs(v-vExpected) > 0.4 {
t.Fatalf("unexpected value; got %v; want %v", v, vExpected)
}
}
sketches := &Dogsketch{
Min: 8.0,
Max: 20.0,
Cnt: 17,
N: []uint32{0x0, 0x0, 0x1, 0x0, 0x1, 0x4, 0x6, 0x1, 0x2, 0x0, 0x1, 0x0, 0x1},
K: []int32{0, 1472, 1473, 1479, 1480, 1503, 1504, 1512, 1513, 1514, 1515, 1531, 1532},
}
f(sketches, 0.1, 8.96)
f(sketches, 0.5, 13.01)
f(sketches, 0.75, 14.96)
f(sketches, 0.9, 14.96)
f(sketches, 0.95, 15.43)
f(sketches, 0.99, 15.43)
}