ae9f97221a
* 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
107 lines
2.1 KiB
Go
107 lines
2.1 KiB
Go
package metrics
|
|
|
|
import (
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
func TestResettingTimer(t *testing.T) {
|
|
tests := []struct {
|
|
values []int64
|
|
start int
|
|
end int
|
|
wantP50 int64
|
|
wantP95 int64
|
|
wantP99 int64
|
|
wantMean float64
|
|
wantMin int64
|
|
wantMax int64
|
|
}{
|
|
{
|
|
values: []int64{},
|
|
start: 1,
|
|
end: 11,
|
|
wantP50: 5, wantP95: 10, wantP99: 10,
|
|
wantMin: 1, wantMax: 10, wantMean: 5.5,
|
|
},
|
|
{
|
|
values: []int64{},
|
|
start: 1,
|
|
end: 101,
|
|
wantP50: 50, wantP95: 95, wantP99: 99,
|
|
wantMin: 1, wantMax: 100, wantMean: 50.5,
|
|
},
|
|
{
|
|
values: []int64{1},
|
|
start: 0,
|
|
end: 0,
|
|
wantP50: 1, wantP95: 1, wantP99: 1,
|
|
wantMin: 1, wantMax: 1, wantMean: 1,
|
|
},
|
|
{
|
|
values: []int64{0},
|
|
start: 0,
|
|
end: 0,
|
|
wantP50: 0, wantP95: 0, wantP99: 0,
|
|
wantMin: 0, wantMax: 0, wantMean: 0,
|
|
},
|
|
{
|
|
values: []int64{},
|
|
start: 0,
|
|
end: 0,
|
|
wantP50: 0, wantP95: 0, wantP99: 0,
|
|
wantMin: 0, wantMax: 0, wantMean: 0,
|
|
},
|
|
{
|
|
values: []int64{1, 10},
|
|
start: 0,
|
|
end: 0,
|
|
wantP50: 1, wantP95: 10, wantP99: 10,
|
|
wantMin: 1, wantMax: 10, wantMean: 5.5,
|
|
},
|
|
}
|
|
for ind, tt := range tests {
|
|
timer := NewResettingTimer()
|
|
|
|
for i := tt.start; i < tt.end; i++ {
|
|
tt.values = append(tt.values, int64(i))
|
|
}
|
|
|
|
for _, v := range tt.values {
|
|
timer.Update(time.Duration(v))
|
|
}
|
|
|
|
snap := timer.Snapshot()
|
|
|
|
ps := snap.Percentiles([]float64{50, 95, 99})
|
|
|
|
val := snap.Values()
|
|
|
|
if len(val) > 0 {
|
|
if tt.wantMin != val[0] {
|
|
t.Fatalf("%d: min: got %d, want %d", ind, val[0], tt.wantMin)
|
|
}
|
|
|
|
if tt.wantMax != val[len(val)-1] {
|
|
t.Fatalf("%d: max: got %d, want %d", ind, val[len(val)-1], tt.wantMax)
|
|
}
|
|
}
|
|
|
|
if tt.wantMean != snap.Mean() {
|
|
t.Fatalf("%d: mean: got %.2f, want %.2f", ind, snap.Mean(), tt.wantMean)
|
|
}
|
|
|
|
if tt.wantP50 != ps[0] {
|
|
t.Fatalf("%d: p50: got %d, want %d", ind, ps[0], tt.wantP50)
|
|
}
|
|
|
|
if tt.wantP95 != ps[1] {
|
|
t.Fatalf("%d: p95: got %d, want %d", ind, ps[1], tt.wantP95)
|
|
}
|
|
|
|
if tt.wantP99 != ps[2] {
|
|
t.Fatalf("%d: p99: got %d, want %d", ind, ps[2], tt.wantP99)
|
|
}
|
|
}
|
|
}
|