mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-12 10:04:29 +02:00
595 lines
17 KiB
Go
595 lines
17 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package metric_test
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import (
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"context"
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"fmt"
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"math"
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"strings"
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"sync/atomic"
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"testing"
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"github.com/stretchr/testify/require"
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"go.opentelemetry.io/otel/api/global"
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"go.opentelemetry.io/otel/api/kv"
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"go.opentelemetry.io/otel/api/label"
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"go.opentelemetry.io/otel/api/metric"
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export "go.opentelemetry.io/otel/sdk/export/metric"
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"go.opentelemetry.io/otel/sdk/export/metric/aggregator"
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metricsdk "go.opentelemetry.io/otel/sdk/metric"
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"go.opentelemetry.io/otel/sdk/metric/aggregator/array"
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"go.opentelemetry.io/otel/sdk/metric/aggregator/sum"
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batchTest "go.opentelemetry.io/otel/sdk/metric/integrator/test"
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"go.opentelemetry.io/otel/sdk/resource"
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)
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var Must = metric.Must
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var testResource = resource.New(kv.String("R", "V"))
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type handler struct{ err error }
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func (h *handler) Handle(err error) {
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h.err = err
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}
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func (h *handler) Reset() {
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h.err = nil
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}
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func (h *handler) Flush() error {
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err := h.err
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h.Reset()
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return err
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}
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var testHandler *handler
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func init() {
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testHandler = new(handler)
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global.SetHandler(testHandler)
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}
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type correctnessIntegrator struct {
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newAggCount int64
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t *testing.T
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records []export.Record
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}
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func newSDK(t *testing.T) (metric.Meter, *metricsdk.Accumulator, *correctnessIntegrator) {
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testHandler.Reset()
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integrator := &correctnessIntegrator{
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t: t,
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}
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accum := metricsdk.NewAccumulator(
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integrator,
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metricsdk.WithResource(testResource),
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)
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meter := metric.WrapMeterImpl(accum, "test")
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return meter, accum, integrator
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}
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func (ci *correctnessIntegrator) AggregatorFor(descriptor *metric.Descriptor) (agg export.Aggregator) {
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name := descriptor.Name()
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switch {
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case strings.HasSuffix(name, ".counter"):
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agg = sum.New()
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case strings.HasSuffix(name, ".disabled"):
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agg = nil
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default:
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agg = array.New()
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}
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if agg != nil {
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atomic.AddInt64(&ci.newAggCount, 1)
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}
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return
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}
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func (ci *correctnessIntegrator) CheckpointSet() export.CheckpointSet {
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ci.t.Fatal("Should not be called")
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return nil
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}
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func (*correctnessIntegrator) FinishedCollection() {
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}
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func (ci *correctnessIntegrator) Process(_ context.Context, record export.Record) error {
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ci.records = append(ci.records, record)
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return nil
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}
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func TestInputRangeCounter(t *testing.T) {
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ctx := context.Background()
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meter, sdk, integrator := newSDK(t)
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counter := Must(meter).NewInt64Counter("name.counter")
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counter.Add(ctx, -1)
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require.Equal(t, aggregator.ErrNegativeInput, testHandler.Flush())
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checkpointed := sdk.Collect(ctx)
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require.Equal(t, 0, checkpointed)
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integrator.records = nil
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counter.Add(ctx, 1)
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checkpointed = sdk.Collect(ctx)
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sum, err := integrator.records[0].Aggregator().(aggregator.Sum).Sum()
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require.Equal(t, int64(1), sum.AsInt64())
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require.Equal(t, 1, checkpointed)
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require.Nil(t, err)
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require.Nil(t, testHandler.Flush())
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}
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func TestInputRangeUpDownCounter(t *testing.T) {
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ctx := context.Background()
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meter, sdk, integrator := newSDK(t)
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counter := Must(meter).NewInt64UpDownCounter("name.updowncounter")
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counter.Add(ctx, -1)
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counter.Add(ctx, -1)
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counter.Add(ctx, 2)
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counter.Add(ctx, 1)
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checkpointed := sdk.Collect(ctx)
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sum, err := integrator.records[0].Aggregator().(aggregator.Sum).Sum()
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require.Equal(t, int64(1), sum.AsInt64())
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require.Equal(t, 1, checkpointed)
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require.Nil(t, err)
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require.Nil(t, testHandler.Flush())
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}
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func TestInputRangeValueRecorder(t *testing.T) {
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ctx := context.Background()
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meter, sdk, integrator := newSDK(t)
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valuerecorder := Must(meter).NewFloat64ValueRecorder("name.valuerecorder")
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valuerecorder.Record(ctx, math.NaN())
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require.Equal(t, aggregator.ErrNaNInput, testHandler.Flush())
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checkpointed := sdk.Collect(ctx)
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require.Equal(t, 0, checkpointed)
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valuerecorder.Record(ctx, 1)
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valuerecorder.Record(ctx, 2)
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integrator.records = nil
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checkpointed = sdk.Collect(ctx)
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count, err := integrator.records[0].Aggregator().(aggregator.Distribution).Count()
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require.Equal(t, int64(2), count)
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require.Equal(t, 1, checkpointed)
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require.Nil(t, testHandler.Flush())
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require.Nil(t, err)
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}
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func TestDisabledInstrument(t *testing.T) {
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ctx := context.Background()
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meter, sdk, integrator := newSDK(t)
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valuerecorder := Must(meter).NewFloat64ValueRecorder("name.disabled")
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valuerecorder.Record(ctx, -1)
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checkpointed := sdk.Collect(ctx)
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require.Equal(t, 0, checkpointed)
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require.Equal(t, 0, len(integrator.records))
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}
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func TestRecordNaN(t *testing.T) {
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ctx := context.Background()
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meter, _, _ := newSDK(t)
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c := Must(meter).NewFloat64Counter("sum.name")
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require.Nil(t, testHandler.Flush())
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c.Add(ctx, math.NaN())
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require.Error(t, testHandler.Flush())
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}
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func TestSDKLabelsDeduplication(t *testing.T) {
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ctx := context.Background()
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meter, sdk, integrator := newSDK(t)
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counter := Must(meter).NewInt64Counter("counter")
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const (
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maxKeys = 21
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keySets = 2
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repeats = 3
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)
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var keysA []kv.Key
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var keysB []kv.Key
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for i := 0; i < maxKeys; i++ {
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keysA = append(keysA, kv.Key(fmt.Sprintf("A%03d", i)))
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keysB = append(keysB, kv.Key(fmt.Sprintf("B%03d", i)))
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}
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var allExpect [][]kv.KeyValue
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for numKeys := 0; numKeys < maxKeys; numKeys++ {
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var kvsA []kv.KeyValue
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var kvsB []kv.KeyValue
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for r := 0; r < repeats; r++ {
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for i := 0; i < numKeys; i++ {
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kvsA = append(kvsA, keysA[i].Int(r))
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kvsB = append(kvsB, keysB[i].Int(r))
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}
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}
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var expectA []kv.KeyValue
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var expectB []kv.KeyValue
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for i := 0; i < numKeys; i++ {
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expectA = append(expectA, keysA[i].Int(repeats-1))
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expectB = append(expectB, keysB[i].Int(repeats-1))
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}
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counter.Add(ctx, 1, kvsA...)
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counter.Add(ctx, 1, kvsA...)
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allExpect = append(allExpect, expectA)
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if numKeys != 0 {
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// In this case A and B sets are the same.
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counter.Add(ctx, 1, kvsB...)
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counter.Add(ctx, 1, kvsB...)
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allExpect = append(allExpect, expectB)
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}
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}
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sdk.Collect(ctx)
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var actual [][]kv.KeyValue
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for _, rec := range integrator.records {
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sum, _ := rec.Aggregator().(aggregator.Sum).Sum()
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require.Equal(t, sum, metric.NewInt64Number(2))
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kvs := rec.Labels().ToSlice()
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actual = append(actual, kvs)
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}
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require.ElementsMatch(t, allExpect, actual)
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}
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func newSetIter(kvs ...kv.KeyValue) label.Iterator {
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labels := label.NewSet(kvs...)
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return labels.Iter()
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}
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func TestDefaultLabelEncoder(t *testing.T) {
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encoder := label.DefaultEncoder()
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encoded := encoder.Encode(newSetIter(kv.String("A", "B"), kv.String("C", "D")))
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require.Equal(t, `A=B,C=D`, encoded)
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encoded = encoder.Encode(newSetIter(kv.String("A", "B,c=d"), kv.String(`C\`, "D")))
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require.Equal(t, `A=B\,c\=d,C\\=D`, encoded)
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encoded = encoder.Encode(newSetIter(kv.String(`\`, `=`), kv.String(`,`, `\`)))
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require.Equal(t, `\,=\\,\\=\=`, encoded)
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// Note: the label encoder does not sort or de-dup values,
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// that is done in Labels(...).
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encoded = encoder.Encode(newSetIter(
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kv.Int("I", 1),
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kv.Uint("U", 1),
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kv.Int32("I32", 1),
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kv.Uint32("U32", 1),
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kv.Int64("I64", 1),
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kv.Uint64("U64", 1),
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kv.Float64("F64", 1),
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kv.Float64("F64", 1),
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kv.String("S", "1"),
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kv.Bool("B", true),
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))
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require.Equal(t, "B=true,F64=1,I=1,I32=1,I64=1,S=1,U=1,U32=1,U64=1", encoded)
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}
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func TestObserverCollection(t *testing.T) {
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ctx := context.Background()
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meter, sdk, integrator := newSDK(t)
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_ = Must(meter).NewFloat64ValueObserver("float.valueobserver", func(_ context.Context, result metric.Float64ObserverResult) {
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result.Observe(1, kv.String("A", "B"))
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// last value wins
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result.Observe(-1, kv.String("A", "B"))
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result.Observe(-1, kv.String("C", "D"))
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})
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_ = Must(meter).NewInt64ValueObserver("int.valueobserver", func(_ context.Context, result metric.Int64ObserverResult) {
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result.Observe(-1, kv.String("A", "B"))
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result.Observe(1)
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// last value wins
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result.Observe(1, kv.String("A", "B"))
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result.Observe(1)
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})
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_ = Must(meter).NewFloat64SumObserver("float.sumobserver", func(_ context.Context, result metric.Float64ObserverResult) {
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result.Observe(1, kv.String("A", "B"))
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result.Observe(2, kv.String("A", "B"))
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result.Observe(1, kv.String("C", "D"))
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})
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_ = Must(meter).NewInt64SumObserver("int.sumobserver", func(_ context.Context, result metric.Int64ObserverResult) {
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result.Observe(2, kv.String("A", "B"))
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result.Observe(1)
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// last value wins
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result.Observe(1, kv.String("A", "B"))
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result.Observe(1)
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})
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_ = Must(meter).NewFloat64UpDownSumObserver("float.updownsumobserver", func(_ context.Context, result metric.Float64ObserverResult) {
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result.Observe(1, kv.String("A", "B"))
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result.Observe(-2, kv.String("A", "B"))
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result.Observe(1, kv.String("C", "D"))
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})
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_ = Must(meter).NewInt64UpDownSumObserver("int.updownsumobserver", func(_ context.Context, result metric.Int64ObserverResult) {
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result.Observe(2, kv.String("A", "B"))
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result.Observe(1)
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// last value wins
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result.Observe(1, kv.String("A", "B"))
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result.Observe(-1)
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})
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_ = Must(meter).NewInt64ValueObserver("empty.valueobserver", func(_ context.Context, result metric.Int64ObserverResult) {
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})
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collected := sdk.Collect(ctx)
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require.Equal(t, collected, len(integrator.records))
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out := batchTest.NewOutput(label.DefaultEncoder())
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for _, rec := range integrator.records {
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_ = out.AddTo(rec)
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}
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require.EqualValues(t, map[string]float64{
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"float.valueobserver/A=B/R=V": -1,
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"float.valueobserver/C=D/R=V": -1,
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"int.valueobserver//R=V": 1,
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"int.valueobserver/A=B/R=V": 1,
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"float.sumobserver/A=B/R=V": 2,
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"float.sumobserver/C=D/R=V": 1,
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"int.sumobserver//R=V": 1,
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"int.sumobserver/A=B/R=V": 1,
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"float.updownsumobserver/A=B/R=V": -2,
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"float.updownsumobserver/C=D/R=V": 1,
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"int.updownsumobserver//R=V": -1,
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"int.updownsumobserver/A=B/R=V": 1,
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}, out.Map)
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}
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func TestSumObserverInputRange(t *testing.T) {
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ctx := context.Background()
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meter, sdk, integrator := newSDK(t)
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_ = Must(meter).NewFloat64SumObserver("float.sumobserver", func(_ context.Context, result metric.Float64ObserverResult) {
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result.Observe(-2, kv.String("A", "B"))
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require.Equal(t, aggregator.ErrNegativeInput, testHandler.Flush())
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result.Observe(-1, kv.String("C", "D"))
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require.Equal(t, aggregator.ErrNegativeInput, testHandler.Flush())
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})
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_ = Must(meter).NewInt64SumObserver("int.sumobserver", func(_ context.Context, result metric.Int64ObserverResult) {
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result.Observe(-1, kv.String("A", "B"))
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require.Equal(t, aggregator.ErrNegativeInput, testHandler.Flush())
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result.Observe(-1)
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require.Equal(t, aggregator.ErrNegativeInput, testHandler.Flush())
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})
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collected := sdk.Collect(ctx)
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require.Equal(t, 0, collected)
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require.Equal(t, 0, len(integrator.records))
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// check that the error condition was reset
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require.NoError(t, testHandler.Flush())
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}
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func TestObserverBatch(t *testing.T) {
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ctx := context.Background()
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meter, sdk, integrator := newSDK(t)
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var floatValueObs metric.Float64ValueObserver
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var intValueObs metric.Int64ValueObserver
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var floatSumObs metric.Float64SumObserver
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var intSumObs metric.Int64SumObserver
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var floatUpDownSumObs metric.Float64UpDownSumObserver
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var intUpDownSumObs metric.Int64UpDownSumObserver
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var batch = Must(meter).NewBatchObserver(
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func(_ context.Context, result metric.BatchObserverResult) {
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result.Observe(
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[]kv.KeyValue{
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kv.String("A", "B"),
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},
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floatValueObs.Observation(1),
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floatValueObs.Observation(-1),
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intValueObs.Observation(-1),
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intValueObs.Observation(1),
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floatSumObs.Observation(1000),
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intSumObs.Observation(100),
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floatUpDownSumObs.Observation(-1000),
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intUpDownSumObs.Observation(-100),
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)
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result.Observe(
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[]kv.KeyValue{
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kv.String("C", "D"),
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},
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floatValueObs.Observation(-1),
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floatSumObs.Observation(-1),
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floatUpDownSumObs.Observation(-1),
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)
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result.Observe(
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nil,
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intValueObs.Observation(1),
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intValueObs.Observation(1),
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intSumObs.Observation(10),
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floatSumObs.Observation(1.1),
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intUpDownSumObs.Observation(10),
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)
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})
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floatValueObs = batch.NewFloat64ValueObserver("float.valueobserver")
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intValueObs = batch.NewInt64ValueObserver("int.valueobserver")
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floatSumObs = batch.NewFloat64SumObserver("float.sumobserver")
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intSumObs = batch.NewInt64SumObserver("int.sumobserver")
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floatUpDownSumObs = batch.NewFloat64UpDownSumObserver("float.updownsumobserver")
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intUpDownSumObs = batch.NewInt64UpDownSumObserver("int.updownsumobserver")
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collected := sdk.Collect(ctx)
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require.Equal(t, collected, len(integrator.records))
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out := batchTest.NewOutput(label.DefaultEncoder())
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for _, rec := range integrator.records {
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_ = out.AddTo(rec)
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}
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require.EqualValues(t, map[string]float64{
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"float.sumobserver//R=V": 1.1,
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"float.sumobserver/A=B/R=V": 1000,
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"int.sumobserver//R=V": 10,
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"int.sumobserver/A=B/R=V": 100,
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"int.updownsumobserver/A=B/R=V": -100,
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"float.updownsumobserver/A=B/R=V": -1000,
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"int.updownsumobserver//R=V": 10,
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"float.updownsumobserver/C=D/R=V": -1,
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"float.valueobserver/A=B/R=V": -1,
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"float.valueobserver/C=D/R=V": -1,
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"int.valueobserver//R=V": 1,
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"int.valueobserver/A=B/R=V": 1,
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}, out.Map)
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}
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func TestRecordBatch(t *testing.T) {
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ctx := context.Background()
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meter, sdk, integrator := newSDK(t)
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counter1 := Must(meter).NewInt64Counter("int64.counter")
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counter2 := Must(meter).NewFloat64Counter("float64.counter")
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valuerecorder1 := Must(meter).NewInt64ValueRecorder("int64.valuerecorder")
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valuerecorder2 := Must(meter).NewFloat64ValueRecorder("float64.valuerecorder")
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sdk.RecordBatch(
|
|
ctx,
|
|
[]kv.KeyValue{
|
|
kv.String("A", "B"),
|
|
kv.String("C", "D"),
|
|
},
|
|
counter1.Measurement(1),
|
|
counter2.Measurement(2),
|
|
valuerecorder1.Measurement(3),
|
|
valuerecorder2.Measurement(4),
|
|
)
|
|
|
|
sdk.Collect(ctx)
|
|
|
|
out := batchTest.NewOutput(label.DefaultEncoder())
|
|
for _, rec := range integrator.records {
|
|
_ = out.AddTo(rec)
|
|
}
|
|
require.EqualValues(t, map[string]float64{
|
|
"int64.counter/A=B,C=D/R=V": 1,
|
|
"float64.counter/A=B,C=D/R=V": 2,
|
|
"int64.valuerecorder/A=B,C=D/R=V": 3,
|
|
"float64.valuerecorder/A=B,C=D/R=V": 4,
|
|
}, out.Map)
|
|
}
|
|
|
|
// TestRecordPersistence ensures that a direct-called instrument that
|
|
// is repeatedly used each interval results in a persistent record, so
|
|
// that its encoded labels will be cached across collection intervals.
|
|
func TestRecordPersistence(t *testing.T) {
|
|
ctx := context.Background()
|
|
meter, sdk, integrator := newSDK(t)
|
|
|
|
c := Must(meter).NewFloat64Counter("sum.name")
|
|
b := c.Bind(kv.String("bound", "true"))
|
|
uk := kv.String("bound", "false")
|
|
|
|
for i := 0; i < 100; i++ {
|
|
c.Add(ctx, 1, uk)
|
|
b.Add(ctx, 1)
|
|
sdk.Collect(ctx)
|
|
}
|
|
|
|
require.Equal(t, int64(2), integrator.newAggCount)
|
|
}
|
|
|
|
func TestIncorrectInstruments(t *testing.T) {
|
|
// The Batch observe/record APIs are susceptible to
|
|
// uninitialized instruments.
|
|
var counter metric.Int64Counter
|
|
var observer metric.Int64ValueObserver
|
|
|
|
ctx := context.Background()
|
|
meter, sdk, _ := newSDK(t)
|
|
|
|
// Now try with uninitialized instruments.
|
|
meter.RecordBatch(ctx, nil, counter.Measurement(1))
|
|
meter.NewBatchObserver(func(_ context.Context, result metric.BatchObserverResult) {
|
|
result.Observe(nil, observer.Observation(1))
|
|
})
|
|
|
|
collected := sdk.Collect(ctx)
|
|
require.Equal(t, metricsdk.ErrUninitializedInstrument, testHandler.Flush())
|
|
require.Equal(t, 0, collected)
|
|
|
|
// Now try with instruments from another SDK.
|
|
var noopMeter metric.Meter
|
|
counter = metric.Must(noopMeter).NewInt64Counter("counter")
|
|
observer = metric.Must(noopMeter).NewBatchObserver(
|
|
func(context.Context, metric.BatchObserverResult) {},
|
|
).NewInt64ValueObserver("observer")
|
|
|
|
meter.RecordBatch(ctx, nil, counter.Measurement(1))
|
|
meter.NewBatchObserver(func(_ context.Context, result metric.BatchObserverResult) {
|
|
result.Observe(nil, observer.Observation(1))
|
|
})
|
|
|
|
collected = sdk.Collect(ctx)
|
|
require.Equal(t, 0, collected)
|
|
require.Equal(t, metricsdk.ErrUninitializedInstrument, testHandler.Flush())
|
|
}
|
|
|
|
func TestSyncInAsync(t *testing.T) {
|
|
ctx := context.Background()
|
|
meter, sdk, integrator := newSDK(t)
|
|
|
|
counter := Must(meter).NewFloat64Counter("counter")
|
|
_ = Must(meter).NewInt64ValueObserver("observer",
|
|
func(ctx context.Context, result metric.Int64ObserverResult) {
|
|
result.Observe(10)
|
|
counter.Add(ctx, 100)
|
|
},
|
|
)
|
|
|
|
sdk.Collect(ctx)
|
|
|
|
out := batchTest.NewOutput(label.DefaultEncoder())
|
|
for _, rec := range integrator.records {
|
|
_ = out.AddTo(rec)
|
|
}
|
|
require.EqualValues(t, map[string]float64{
|
|
"counter//R=V": 100,
|
|
"observer//R=V": 10,
|
|
}, out.Map)
|
|
}
|