Official Go implementation of the Ethereum protocol
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go-ethereum/metrics/meter_test.go

91 lines
1.8 KiB

package metrics
import (
"testing"
"time"
)
func BenchmarkMeter(b *testing.B) {
m := NewMeter()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m.Mark(1)
}
}
func TestGetOrRegisterMeter(t *testing.T) {
r := NewRegistry()
NewRegisteredMeter("foo", r).Mark(47)
if m := GetOrRegisterMeter("foo", r); m.Count() != 47 {
t.Fatal(m.Count())
}
}
func TestMeterDecay(t *testing.T) {
ma := meterArbiter{
ticker: time.NewTicker(time.Millisecond),
meters: make(map[*StandardMeter]struct{}),
}
defer ma.ticker.Stop()
m := newStandardMeter()
ma.meters[m] = struct{}{}
m.Mark(1)
ma.tickMeters()
rateMean := m.RateMean()
time.Sleep(100 * time.Millisecond)
ma.tickMeters()
if m.RateMean() >= rateMean {
t.Error("m.RateMean() didn't decrease")
}
}
func TestMeterNonzero(t *testing.T) {
m := NewMeter()
m.Mark(3)
if count := m.Count(); count != 3 {
t.Errorf("m.Count(): 3 != %v\n", count)
}
}
func TestMeterStop(t *testing.T) {
l := len(arbiter.meters)
m := NewMeter()
if l+1 != len(arbiter.meters) {
t.Errorf("arbiter.meters: %d != %d\n", l+1, len(arbiter.meters))
}
m.Stop()
if l != len(arbiter.meters) {
t.Errorf("arbiter.meters: %d != %d\n", l, len(arbiter.meters))
}
}
func TestMeterSnapshot(t *testing.T) {
m := NewMeter()
m.Mark(1)
if snapshot := m.Snapshot(); m.RateMean() != snapshot.RateMean() {
t.Fatal(snapshot)
}
}
func TestMeterZero(t *testing.T) {
m := NewMeter()
if count := m.Count(); count != 0 {
t.Errorf("m.Count(): 0 != %v\n", count)
}
}
func TestMeterRepeat(t *testing.T) {
m := NewMeter()
for i := 0; i < 101; i++ {
m.Mark(int64(i))
}
if count := m.Count(); count != 5050 {
t.Errorf("m.Count(): 5050 != %v\n", count)
}
for i := 0; i < 101; i++ {
m.Mark(int64(i))
}
if count := m.Count(); count != 10100 {
t.Errorf("m.Count(): 10100 != %v\n", count)
}
}