package expvar
import (
"strconv"
"testing"
"github.com/go-kit/kit/metrics/teststat"
)
func TestCounter(t *testing.T) {
counter := NewCounter("expvar_counter").With("label values", "not supported").(*Counter)
value := func() float64 { f, _ := strconv.ParseFloat(counter.f.String(), 64); return f }
if err := teststat.TestCounter(counter, value); err != nil {
t.Fatal(err)
}
}
func TestGauge(t *testing.T) {
gauge := NewGauge("expvar_gauge").With("label values", "not supported").(*Gauge)
value := func() float64 { f, _ := strconv.ParseFloat(gauge.f.String(), 64); return f }
if err := teststat.TestGauge(gauge, value); err != nil {
t.Fatal(err)
}
}
func TestHistogram(t *testing.T) {
histogram := NewHistogram("expvar_histogram", 50).With("label values", "not supported").(*Histogram)
quantiles := func() (float64, float64, float64, float64) {
p50, _ := strconv.ParseFloat(histogram.p50.String(), 64)
p90, _ := strconv.ParseFloat(histogram.p90.String(), 64)
p95, _ := strconv.ParseFloat(histogram.p95.String(), 64)
p99, _ := strconv.ParseFloat(histogram.p99.String(), 64)
return p50, p90, p95, p99
}
if err := teststat.TestHistogram(histogram, quantiles, 0.01); err != nil {
t.Fatal(err)
}
}