mirror of https://github.com/tidwall/tile38.git
69 lines
1.2 KiB
Go
69 lines
1.2 KiB
Go
package metrics
|
|
|
|
import (
|
|
"fmt"
|
|
"testing"
|
|
)
|
|
|
|
func BenchmarkGuage(b *testing.B) {
|
|
g := NewGauge()
|
|
b.ResetTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
g.Update(int64(i))
|
|
}
|
|
}
|
|
|
|
func TestGauge(t *testing.T) {
|
|
g := NewGauge()
|
|
g.Update(int64(47))
|
|
if v := g.Value(); 47 != v {
|
|
t.Errorf("g.Value(): 47 != %v\n", v)
|
|
}
|
|
}
|
|
|
|
func TestGaugeSnapshot(t *testing.T) {
|
|
g := NewGauge()
|
|
g.Update(int64(47))
|
|
snapshot := g.Snapshot()
|
|
g.Update(int64(0))
|
|
if v := snapshot.Value(); 47 != v {
|
|
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); 47 != g.Value() {
|
|
t.Fatal(g)
|
|
}
|
|
}
|
|
|
|
func TestFunctionalGauge(t *testing.T) {
|
|
var counter int64
|
|
fg := NewFunctionalGauge(func() int64 {
|
|
counter++
|
|
return counter
|
|
})
|
|
fg.Value()
|
|
fg.Value()
|
|
if counter != 2 {
|
|
t.Error("counter != 2")
|
|
}
|
|
}
|
|
|
|
func TestGetOrRegisterFunctionalGauge(t *testing.T) {
|
|
r := NewRegistry()
|
|
NewRegisteredFunctionalGauge("foo", r, func() int64 { return 47 })
|
|
if g := GetOrRegisterGauge("foo", r); 47 != g.Value() {
|
|
t.Fatal(g)
|
|
}
|
|
}
|
|
|
|
func ExampleGetOrRegisterGauge() {
|
|
m := "server.bytes_sent"
|
|
g := GetOrRegisterGauge(m, nil)
|
|
g.Update(47)
|
|
fmt.Println(g.Value()) // Output: 47
|
|
}
|