• Anton Evangelatov's avatar
    metrics: pull library and introduce ResettingTimer and InfluxDB reporter (#15910) · ae9f9722
    Anton Evangelatov authored
    * go-metrics: fork library and introduce ResettingTimer and InfluxDB reporter.
    
    * vendor: change nonsense/go-metrics to ethersphere/go-metrics
    
    * go-metrics: add tests. move ResettingTimer logic from reporter to type.
    
    * all, metrics: pull in metrics package in go-ethereum
    
    * metrics/test: make sure metrics are enabled for tests
    
    * metrics: apply gosimple rules
    
    * metrics/exp, internal/debug: init expvar endpoint when starting pprof server
    
    * internal/debug: tiny comment formatting fix
    ae9f9722
gauge_float64_test.go 1.28 KB
package metrics

import "testing"

func BenchmarkGuageFloat64(b *testing.B) {
	g := NewGaugeFloat64()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		g.Update(float64(i))
	}
}

func TestGaugeFloat64(t *testing.T) {
	g := NewGaugeFloat64()
	g.Update(float64(47.0))
	if v := g.Value(); float64(47.0) != v {
		t.Errorf("g.Value(): 47.0 != %v\n", v)
	}
}

func TestGaugeFloat64Snapshot(t *testing.T) {
	g := NewGaugeFloat64()
	g.Update(float64(47.0))
	snapshot := g.Snapshot()
	g.Update(float64(0))
	if v := snapshot.Value(); float64(47.0) != v {
		t.Errorf("g.Value(): 47.0 != %v\n", v)
	}
}

func TestGetOrRegisterGaugeFloat64(t *testing.T) {
	r := NewRegistry()
	NewRegisteredGaugeFloat64("foo", r).Update(float64(47.0))
	t.Logf("registry: %v", r)
	if g := GetOrRegisterGaugeFloat64("foo", r); float64(47.0) != g.Value() {
		t.Fatal(g)
	}
}

func TestFunctionalGaugeFloat64(t *testing.T) {
	var counter float64
	fg := NewFunctionalGaugeFloat64(func() float64 {
		counter++
		return counter
	})
	fg.Value()
	fg.Value()
	if counter != 2 {
		t.Error("counter != 2")
	}
}

func TestGetOrRegisterFunctionalGaugeFloat64(t *testing.T) {
	r := NewRegistry()
	NewRegisteredFunctionalGaugeFloat64("foo", r, func() float64 { return 47 })
	if g := GetOrRegisterGaugeFloat64("foo", r); 47 != g.Value() {
		t.Fatal(g)
	}
}