mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-18 22:52:11 +01:00
56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
package logstorage
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import (
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"math"
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"testing"
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)
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func TestHistogramQuantile(t *testing.T) {
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f := func(a []float64, phi, qExpected float64) {
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t.Helper()
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var h histogram
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for _, f := range a {
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h.update(f)
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}
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q := h.quantile(phi)
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if math.IsNaN(qExpected) {
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if !math.IsNaN(q) {
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t.Fatalf("unexpected result for q=%v, phi=%v; got %v; want %v", a, phi, q, qExpected)
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}
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} else if q != qExpected {
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t.Fatalf("unexpected result for q=%v, phi=%v; got %v; want %v", a, phi, q, qExpected)
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}
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}
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f(nil, -1, nan)
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f(nil, 0, nan)
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f(nil, 0.5, nan)
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f(nil, 1, nan)
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f(nil, 10, nan)
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f([]float64{123}, -1, 123)
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f([]float64{123}, 0, 123)
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f([]float64{123}, 0.5, 123)
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f([]float64{123}, 1, 123)
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f([]float64{123}, 10, 123)
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f([]float64{5, 1}, -1, 1)
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f([]float64{5, 1}, 0, 1)
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f([]float64{5, 1}, 0.5-1e-5, 1)
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f([]float64{5, 1}, 0.5, 5)
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f([]float64{5, 1}, 1, 5)
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f([]float64{5, 1}, 10, 5)
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f([]float64{5, 1, 3}, -1, 1)
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f([]float64{5, 1, 3}, 0, 1)
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f([]float64{5, 1, 3}, 1.0/3-1e-5, 1)
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f([]float64{5, 1, 3}, 1.0/3, 3)
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f([]float64{5, 1, 3}, 2.0/3-1e-5, 3)
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f([]float64{5, 1, 3}, 2.0/3, 5)
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f([]float64{5, 1, 3}, 1-1e-5, 5)
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f([]float64{5, 1, 3}, 1, 5)
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f([]float64{5, 1, 3}, 10, 5)
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}
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