eSlider
168a0a3b53
OQ3: internal/duckstats + bin/qa/stats.go. Zig stays Ladybug-only. mikefarah/yq for small structured slices. Gitea #30.
52 lines
923 B
Go
52 lines
923 B
Go
package duckstats
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import (
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"os"
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"testing"
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)
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func TestQuantilesEmpty(t *testing.T) {
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_, err := Quantiles(nil)
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if err == nil {
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t.Fatal("empty slice must error")
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}
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}
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func TestQuantilesOdd(t *testing.T) {
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s, err := Quantiles([]float64{1, 2, 3, 4, 5})
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if err != nil {
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t.Fatal(err)
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}
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if s.N != 5 {
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t.Fatalf("n=%d", s.N)
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}
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if s.Min != 1 || s.Max != 5 {
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t.Fatalf("min=%v max=%v", s.Min, s.Max)
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}
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if s.P50 != 3 {
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t.Fatalf("p50=%v want 3", s.P50)
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}
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if s.Avg != 3 {
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t.Fatalf("avg=%v want 3", s.Avg)
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}
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if s.P95 < 4.5 || s.P95 > 5 {
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t.Fatalf("p95=%v want in [4.5,5]", s.P95)
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}
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}
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func TestCountJSONL(t *testing.T) {
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dir := t.TempDir()
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p := dir + "/rows.jsonl"
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body := "{\"ms\":1}\n{\"ms\":2}\n{\"ms\":3}\n"
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if err := os.WriteFile(p, []byte(body), 0o600); err != nil {
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t.Fatal(err)
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}
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n, err := CountJSONL(p)
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if err != nil {
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t.Fatal(err)
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}
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if n != 3 {
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t.Fatalf("count=%d want 3", n)
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}
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}
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