1// Copyright The OpenTelemetry Authors 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package metric_test 16 17import ( 18 "context" 19 "math/rand" 20 "testing" 21 "time" 22 23 "github.com/stretchr/testify/require" 24 25 "go.opentelemetry.io/otel/metric" 26 "go.opentelemetry.io/otel/metric/number" 27 "go.opentelemetry.io/otel/sdk/metric/aggregator/histogram" 28) 29 30func TestStressInt64Histogram(t *testing.T) { 31 desc := metric.NewDescriptor("some_metric", metric.ValueRecorderInstrumentKind, number.Int64Kind) 32 33 alloc := histogram.New(2, &desc, []float64{25, 50, 75}) 34 h, ckpt := &alloc[0], &alloc[1] 35 36 ctx, cancelFunc := context.WithCancel(context.Background()) 37 defer cancelFunc() 38 go func() { 39 rnd := rand.New(rand.NewSource(time.Now().Unix())) 40 for { 41 select { 42 case <-ctx.Done(): 43 return 44 default: 45 _ = h.Update(ctx, number.NewInt64Number(rnd.Int63()%100), &desc) 46 } 47 } 48 }() 49 50 startTime := time.Now() 51 for time.Since(startTime) < time.Second { 52 require.NoError(t, h.SynchronizedMove(ckpt, &desc)) 53 54 b, _ := ckpt.Histogram() 55 c, _ := ckpt.Count() 56 57 var realCount int64 58 for _, c := range b.Counts { 59 v := int64(c) 60 realCount += v 61 } 62 63 if realCount != c { 64 t.Fail() 65 } 66 } 67} 68