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package stats_test
import (
"testing"
"github.com/facebookgo/ensure"
"github.com/facebookgo/stats"
)
func TestAverage(t *testing.T) {
t.Parallel()
ensure.DeepEqual(t, stats.Average([]float64{}), 0.0)
ensure.DeepEqual(t, stats.Average([]float64{1}), 1.0)
ensure.DeepEqual(t, stats.Average([]float64{1, 2}), 1.5)
ensure.DeepEqual(t, stats.Average([]float64{1, 2, 3}), 2.0)
}
func TestSum(t *testing.T) {
t.Parallel()
ensure.DeepEqual(t, stats.Sum([]float64{}), 0.0)
ensure.DeepEqual(t, stats.Sum([]float64{1}), 1.0)
ensure.DeepEqual(t, stats.Sum([]float64{1, 2}), 3.0)
ensure.DeepEqual(t, stats.Sum([]float64{1, 2, 3}), 6.0)
}
func TestPercentiles(t *testing.T) {
t.Parallel()
percentiles := map[string]float64{
"p50": 0.5,
"p90": 0.9,
}
input := []float64{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
expected := map[string]float64{
"p50": 5,
"p90": 9,
}
ensure.DeepEqual(t, stats.Percentiles(input, percentiles), expected)
}
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