go-ethereum/metrics/gauge_test.go

32 lines
560 B
Go

package metrics
import (
"testing"
)
func BenchmarkGauge(b *testing.B) {
g := NewGauge()
b.ResetTimer()
for i := 0; i < b.N; i++ {
g.Update(int64(i))
}
}
func TestGaugeSnapshot(t *testing.T) {
g := NewGauge()
g.Update(int64(47))
snapshot := g.Snapshot()
g.Update(int64(0))
if v := snapshot.Value(); v != 47 {
t.Errorf("g.Value(): 47 != %v\n", v)
}
}
func TestGetOrRegisterGauge(t *testing.T) {
r := NewRegistry()
NewRegisteredGauge("foo", r).Update(47)
if g := GetOrRegisterGauge("foo", r); g.Snapshot().Value() != 47 {
t.Fatal(g)
}
}