forked from TrueCloudLab/distribution
60 lines
1.1 KiB
Go
60 lines
1.1 KiB
Go
package metrics
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import (
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"testing"
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"time"
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)
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func BenchmarkMeter(b *testing.B) {
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m := NewMeter()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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m.Mark(1)
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}
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}
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func TestGetOrRegisterMeter(t *testing.T) {
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r := NewRegistry()
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NewRegisteredMeter("foo", r).Mark(47)
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if m := GetOrRegisterMeter("foo", r); 47 != m.Count() {
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t.Fatal(m)
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}
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}
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func TestMeterDecay(t *testing.T) {
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ma := meterArbiter{
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ticker: time.NewTicker(1),
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}
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m := newStandardMeter()
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ma.meters = append(ma.meters, m)
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go ma.tick()
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m.Mark(1)
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rateMean := m.RateMean()
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time.Sleep(1)
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if m.RateMean() >= rateMean {
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t.Error("m.RateMean() didn't decrease")
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}
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}
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func TestMeterNonzero(t *testing.T) {
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m := NewMeter()
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m.Mark(3)
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if count := m.Count(); 3 != count {
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t.Errorf("m.Count(): 3 != %v\n", count)
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}
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}
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func TestMeterSnapshot(t *testing.T) {
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m := NewMeter()
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m.Mark(1)
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if snapshot := m.Snapshot(); m.RateMean() != snapshot.RateMean() {
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t.Fatal(snapshot)
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}
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}
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func TestMeterZero(t *testing.T) {
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m := NewMeter()
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if count := m.Count(); 0 != count {
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t.Errorf("m.Count(): 0 != %v\n", count)
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}
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}
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