mirror of
https://github.com/hanzoai/metrics.git
synced 2026-10-30 20:03:39 +00:00
Andrii ChubatiukandGitHub
a4bd85dd5e
Previously, due to bug at parsing logic sketches values were duplicated. This commit properly parsers sketches and correctly converts it to time series labels. Related issue: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8836
65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
package datadogsketches
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import (
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"math"
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"testing"
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)
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func TestDogsketchQuantile(t *testing.T) {
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f := func(d *Dogsketch, q float64, vExpected float64) {
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t.Helper()
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v := d.quantile(q)
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if math.Abs(v-vExpected) > 0.01 {
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t.Fatalf("unexpected value; got %v; want %v", v, vExpected)
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}
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}
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sketches := &Dogsketch{
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Min: 8.0,
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Max: 21.0,
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Cnt: 17,
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N: []uint32{0x0, 0x0, 0x1, 0x0, 0x1, 0x4, 0x6, 0x1, 0x2, 0x0, 0x1, 0x0, 0x1},
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K: []int32{0, 1472, 1473, 1479, 1480, 1503, 1504, 1512, 1513, 1514, 1515, 1531, 1532},
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}
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f(sketches, 0, 8)
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f(sketches, 0.1, 12.91)
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f(sketches, 0.5, 13.18)
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f(sketches, 0.75, 14.84)
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f(sketches, 0.9, 15.19)
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f(sketches, 0.95, 15.55)
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f(sketches, 0.99, 20.24)
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f(sketches, 1, 21)
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}
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func TestSketchToSummary(t *testing.T) {
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f := func(s *Sketch) {
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t.Helper()
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for _, m := range s.ToSummary() {
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if len(m.Points) != len(s.Dogsketches) {
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t.Fatalf("unexpected amount of quantile points; got %d; want %d", len(m.Points), len(s.Dogsketches))
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}
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}
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}
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f(&Sketch{
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Metric: "test_metric",
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Host: "host",
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Tags: []string{"key1:value1", "key2:value2"},
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Dogsketches: []*Dogsketch{
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{
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Min: 8.0,
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Max: 21.0,
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Cnt: 17,
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N: []uint32{0x0, 0x0, 0x1, 0x0, 0x1, 0x4, 0x6, 0x1, 0x2, 0x0, 0x1, 0x0, 0x1},
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K: []int32{0, 1472, 1473, 1479, 1480, 1503, 1504, 1512, 1513, 1514, 1515, 1531, 1532},
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},
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{
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Min: 8.0,
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Max: 21.0,
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Cnt: 17,
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N: []uint32{0x0, 0x0, 0x1, 0x0, 0x1, 0x4, 0x6, 0x1, 0x2, 0x0, 0x1, 0x0, 0x1},
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K: []int32{0, 1472, 1473, 1479, 1480, 1503, 1504, 1512, 1513, 1514, 1515, 1531, 1532},
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},
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},
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})
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}
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