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opentelemetry-go/sdk/metric/histogram_stress_test.go
Tyler Yahn c97b4f726c
Update project License headers and checking (#596)
Update license header to standard format for source files missed prior.

Add license header to new source files.

Add Makefile check to test all `*.go` and `*.sh` files have a copyright
notice (or comment about them being auto-generated) within the first few
lines.
2020-03-25 14:47:17 -07:00

68 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.
// This test is too large for the race detector. This SDK uses no locks
// that the race detector would help with, anyway.
// +build !race
package metric_test
import (
"context"
"math/rand"
"testing"
"time"
"go.opentelemetry.io/otel/api/core"
"go.opentelemetry.io/otel/api/metric"
"go.opentelemetry.io/otel/sdk/metric/aggregator/histogram"
)
func TestStressInt64Histogram(t *testing.T) {
desc := metric.NewDescriptor("some_metric", metric.MeasureKind, core.Int64NumberKind)
h := histogram.New(&desc, []core.Number{core.NewInt64Number(25), core.NewInt64Number(50), core.NewInt64Number(75)})
ctx, cancelFunc := context.WithCancel(context.Background())
defer cancelFunc()
go func() {
rnd := rand.New(rand.NewSource(time.Now().Unix()))
for {
select {
case <-ctx.Done():
return
default:
_ = h.Update(ctx, core.NewInt64Number(rnd.Int63()%100), &desc)
}
}
}()
startTime := time.Now()
for time.Since(startTime) < time.Second {
h.Checkpoint(context.Background(), &desc)
b, _ := h.Histogram()
c, _ := h.Count()
var realCount int64
for _, c := range b.Counts {
v := c.AsInt64()
realCount += v
}
if realCount != c {
t.Fail()
}
}
}