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package statsengine
import (
"reflect"
"testing"
"time"
)
func TestRingTimeSeriesAveragesWithinSlot(t *testing.T) {
r := newRingTimeSeriesWithConfig(time.Second, 4)
base := time.Unix(0, 0)
r.Add(10, base)
r.Add(20, base.Add(400*time.Millisecond))
got := r.Values()
want := []float64{0, 0, 0, 15}
if !reflect.DeepEqual(got, want) {
t.Fatalf("unexpected values: got %v want %v", got, want)
}
}
func TestRingTimeSeriesWrapAround(t *testing.T) {
r := newRingTimeSeriesWithConfig(time.Second, 4)
base := time.Unix(0, 0)
for i := 0; i < 6; i++ {
r.Add(float64(i+1), base.Add(time.Duration(i)*time.Second))
}
got := r.Values()
want := []float64{3, 4, 5, 6}
if !reflect.DeepEqual(got, want) {
t.Fatalf("unexpected wrap-around values: got %v want %v", got, want)
}
}
func TestRingTimeSeriesGapHandling(t *testing.T) {
r := newRingTimeSeriesWithConfig(time.Second, 4)
base := time.Unix(0, 0)
r.Add(10, base)
r.Add(40, base.Add(3*time.Second))
got := r.Values()
want := []float64{10, 0, 0, 40}
if !reflect.DeepEqual(got, want) {
t.Fatalf("unexpected gap values: got %v want %v", got, want)
}
}
func TestRingTimeSeriesIgnoresTooOldSamples(t *testing.T) {
r := newRingTimeSeriesWithConfig(time.Second, 4)
base := time.Unix(0, 0)
r.Add(1, base)
r.Add(5, base.Add(5*time.Second))
r.Add(99, base)
got := r.Values()
want := []float64{0, 0, 0, 5}
if !reflect.DeepEqual(got, want) {
t.Fatalf("unexpected values with old sample: got %v want %v", got, want)
}
}
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