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opentelemetry-go/sdk/metric/batcher/defaultkeys/defaultkeys_test.go
2019-11-19 13:25:24 -08:00

140 lines
4.6 KiB
Go

// Copyright 2019, 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 defaultkeys_test
import (
"context"
"testing"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel/api/core"
export "go.opentelemetry.io/otel/sdk/export/metric"
"go.opentelemetry.io/otel/sdk/metric/batcher/defaultkeys"
"go.opentelemetry.io/otel/sdk/metric/batcher/test"
)
func TestGroupingStateless(t *testing.T) {
ctx := context.Background()
b := defaultkeys.New(test.NewAggregationSelector(), test.GroupEncoder, false)
_ = b.Process(ctx, test.NewGaugeRecord(test.GaugeADesc, test.Labels1, 10))
_ = b.Process(ctx, test.NewGaugeRecord(test.GaugeADesc, test.Labels2, 20))
_ = b.Process(ctx, test.NewGaugeRecord(test.GaugeADesc, test.Labels3, 30))
_ = b.Process(ctx, test.NewGaugeRecord(test.GaugeBDesc, test.Labels1, 10))
_ = b.Process(ctx, test.NewGaugeRecord(test.GaugeBDesc, test.Labels2, 20))
_ = b.Process(ctx, test.NewGaugeRecord(test.GaugeBDesc, test.Labels3, 30))
_ = b.Process(ctx, test.NewCounterRecord(test.CounterADesc, test.Labels1, 10))
_ = b.Process(ctx, test.NewCounterRecord(test.CounterADesc, test.Labels2, 20))
_ = b.Process(ctx, test.NewCounterRecord(test.CounterADesc, test.Labels3, 40))
_ = b.Process(ctx, test.NewCounterRecord(test.CounterBDesc, test.Labels1, 10))
_ = b.Process(ctx, test.NewCounterRecord(test.CounterBDesc, test.Labels2, 20))
_ = b.Process(ctx, test.NewCounterRecord(test.CounterBDesc, test.Labels3, 40))
checkpointSet := b.CheckpointSet()
b.FinishedCollection()
records := test.Output{}
checkpointSet.ForEach(records.AddTo)
// Repeat for {counter,gauge}.{1,2}.
// Output gauge should have only the "G=H" and "G=" keys.
// Output counter should have only the "C=D" and "C=" keys.
require.EqualValues(t, map[string]int64{
"counter.a/C=D": 30, // labels1 + labels2
"counter.a/C=": 40, // labels3
"counter.b/C=D": 30, // labels1 + labels2
"counter.b/C=": 40, // labels3
"gauge.a/G=H": 10, // labels1
"gauge.a/G=": 30, // labels3 = last value
"gauge.b/G=H": 10, // labels1
"gauge.b/G=": 30, // labels3 = last value
}, records)
// Verify that state is reset by FinishedCollection()
checkpointSet = b.CheckpointSet()
b.FinishedCollection()
checkpointSet.ForEach(func(rec export.Record) {
t.Fatal("Unexpected call")
})
}
func TestGroupingStateful(t *testing.T) {
ctx := context.Background()
b := defaultkeys.New(test.NewAggregationSelector(), test.GroupEncoder, true)
counterA := test.NewCounterRecord(test.CounterADesc, test.Labels1, 10)
caggA := counterA.Aggregator()
_ = b.Process(ctx, counterA)
counterB := test.NewCounterRecord(test.CounterBDesc, test.Labels1, 10)
caggB := counterB.Aggregator()
_ = b.Process(ctx, counterB)
checkpointSet := b.CheckpointSet()
b.FinishedCollection()
records1 := test.Output{}
checkpointSet.ForEach(records1.AddTo)
require.EqualValues(t, map[string]int64{
"counter.a/C=D": 10, // labels1
"counter.b/C=D": 10, // labels1
}, records1)
// Test that state was NOT reset
checkpointSet = b.CheckpointSet()
b.FinishedCollection()
records2 := test.Output{}
checkpointSet.ForEach(records2.AddTo)
require.EqualValues(t, records1, records2)
// Update and re-checkpoint the original record.
_ = caggA.Update(ctx, core.NewInt64Number(20), test.CounterADesc)
_ = caggB.Update(ctx, core.NewInt64Number(20), test.CounterBDesc)
caggA.Checkpoint(ctx, test.CounterADesc)
caggB.Checkpoint(ctx, test.CounterBDesc)
// As yet cagg has not been passed to Batcher.Process. Should
// not see an update.
checkpointSet = b.CheckpointSet()
b.FinishedCollection()
records3 := test.Output{}
checkpointSet.ForEach(records3.AddTo)
require.EqualValues(t, records1, records3)
// Now process the second update
_ = b.Process(ctx, export.NewRecord(test.CounterADesc, test.Labels1, caggA))
_ = b.Process(ctx, export.NewRecord(test.CounterBDesc, test.Labels1, caggB))
checkpointSet = b.CheckpointSet()
b.FinishedCollection()
records4 := test.Output{}
checkpointSet.ForEach(records4.AddTo)
require.EqualValues(t, map[string]int64{
"counter.a/C=D": 30,
"counter.b/C=D": 30,
}, records4)
}