github.com/sj-piano/go-ethereum@v1.9.7/metrics/gauge_float64_test.go (about)

     1  package metrics
     2  
     3  import "testing"
     4  
     5  func BenchmarkGuageFloat64(b *testing.B) {
     6  	g := NewGaugeFloat64()
     7  	b.ResetTimer()
     8  	for i := 0; i < b.N; i++ {
     9  		g.Update(float64(i))
    10  	}
    11  }
    12  
    13  func TestGaugeFloat64(t *testing.T) {
    14  	g := NewGaugeFloat64()
    15  	g.Update(float64(47.0))
    16  	if v := g.Value(); float64(47.0) != v {
    17  		t.Errorf("g.Value(): 47.0 != %v\n", v)
    18  	}
    19  }
    20  
    21  func TestGaugeFloat64Snapshot(t *testing.T) {
    22  	g := NewGaugeFloat64()
    23  	g.Update(float64(47.0))
    24  	snapshot := g.Snapshot()
    25  	g.Update(float64(0))
    26  	if v := snapshot.Value(); float64(47.0) != v {
    27  		t.Errorf("g.Value(): 47.0 != %v\n", v)
    28  	}
    29  }
    30  
    31  func TestGetOrRegisterGaugeFloat64(t *testing.T) {
    32  	r := NewRegistry()
    33  	NewRegisteredGaugeFloat64("foo", r).Update(float64(47.0))
    34  	t.Logf("registry: %v", r)
    35  	if g := GetOrRegisterGaugeFloat64("foo", r); float64(47.0) != g.Value() {
    36  		t.Fatal(g)
    37  	}
    38  }
    39  
    40  func TestFunctionalGaugeFloat64(t *testing.T) {
    41  	var counter float64
    42  	fg := NewFunctionalGaugeFloat64(func() float64 {
    43  		counter++
    44  		return counter
    45  	})
    46  	fg.Value()
    47  	fg.Value()
    48  	if counter != 2 {
    49  		t.Error("counter != 2")
    50  	}
    51  }
    52  
    53  func TestGetOrRegisterFunctionalGaugeFloat64(t *testing.T) {
    54  	r := NewRegistry()
    55  	NewRegisteredFunctionalGaugeFloat64("foo", r, func() float64 { return 47 })
    56  	if g := GetOrRegisterGaugeFloat64("foo", r); 47 != g.Value() {
    57  		t.Fatal(g)
    58  	}
    59  }