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opentelemetry-go/sdk/metric/minmaxsumcount_stress_test.go
Joshua MacDonald 6bc14ffd2c
Replace Measure instrument by ValueRecorder instrument (#732)
* Measure->Value recorder and cleanups re: measure

* More edits

* More edits

* Feedback
2020-05-15 22:11:12 -07:00

79 lines
1.8 KiB
Go

// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package metric_test
import (
"context"
"math/rand"
"testing"
"time"
"go.opentelemetry.io/otel/api/metric"
"go.opentelemetry.io/otel/sdk/metric/aggregator/minmaxsumcount"
)
func TestStressInt64MinMaxSumCount(t *testing.T) {
desc := metric.NewDescriptor("some_metric", metric.ValueRecorderKind, metric.Int64NumberKind)
mmsc := minmaxsumcount.New(&desc)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
go func() {
rnd := rand.New(rand.NewSource(time.Now().Unix()))
v := rnd.Int63() % 103
for {
select {
case <-ctx.Done():
return
default:
_ = mmsc.Update(ctx, metric.NewInt64Number(v), &desc)
}
v++
}
}()
startTime := time.Now()
for time.Since(startTime) < time.Second {
mmsc.Checkpoint(context.Background(), &desc)
s, _ := mmsc.Sum()
c, _ := mmsc.Count()
min, e1 := mmsc.Min()
max, e2 := mmsc.Max()
if c == 0 && (e1 == nil || e2 == nil || s.AsInt64() != 0) {
t.Fail()
}
if c != 0 {
if e1 != nil || e2 != nil {
t.Fail()
}
lo, hi, sum := min.AsInt64(), max.AsInt64(), s.AsInt64()
if hi-lo+1 != c {
t.Fail()
}
if c == 1 {
if lo != hi || lo != sum {
t.Fail()
}
} else {
if hi*(hi+1)/2-(lo-1)*lo/2 != sum {
t.Fail()
}
}
}
}
}