mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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f9984f2d4e
* Restructure ExportKindSelector helpers; eliminate PassThroughExportKind; add StatelessExportKindSelector() * WithExportKindSelector(); Additional testing * Changelog update * Test the new selectors * From review feedback Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
114 lines
3.1 KiB
Go
114 lines
3.1 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 reducer_test
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import (
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"context"
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"testing"
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"github.com/stretchr/testify/require"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/label"
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export "go.opentelemetry.io/otel/sdk/export/metric"
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metricsdk "go.opentelemetry.io/otel/sdk/metric"
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"go.opentelemetry.io/otel/sdk/metric/processor/basic"
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processorTest "go.opentelemetry.io/otel/sdk/metric/processor/processortest"
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"go.opentelemetry.io/otel/sdk/metric/processor/reducer"
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"go.opentelemetry.io/otel/sdk/resource"
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)
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var (
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kvs1 = []label.KeyValue{
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label.Int("A", 1),
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label.Int("B", 2),
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label.Int("C", 3),
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}
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kvs2 = []label.KeyValue{
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label.Int("A", 1),
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label.Int("B", 0),
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label.Int("C", 3),
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}
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)
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type testFilter struct{}
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func (testFilter) LabelFilterFor(_ *otel.Descriptor) label.Filter {
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return func(label label.KeyValue) bool {
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return label.Key == "A" || label.Key == "C"
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}
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}
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func generateData(impl otel.MeterImpl) {
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ctx := context.Background()
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meter := otel.WrapMeterImpl(impl, "testing")
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counter := otel.Must(meter).NewFloat64Counter("counter.sum")
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_ = otel.Must(meter).NewInt64SumObserver("observer.sum",
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func(_ context.Context, result otel.Int64ObserverResult) {
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result.Observe(10, kvs1...)
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result.Observe(10, kvs2...)
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},
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)
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counter.Add(ctx, 100, kvs1...)
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counter.Add(ctx, 100, kvs2...)
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}
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func TestFilterProcessor(t *testing.T) {
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testProc := processorTest.NewProcessor(
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processorTest.AggregatorSelector(),
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label.DefaultEncoder(),
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)
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accum := metricsdk.NewAccumulator(
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reducer.New(testFilter{}, processorTest.Checkpointer(testProc)),
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resource.NewWithAttributes(label.String("R", "V")),
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)
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generateData(accum)
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accum.Collect(context.Background())
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require.EqualValues(t, map[string]float64{
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"counter.sum/A=1,C=3/R=V": 200,
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"observer.sum/A=1,C=3/R=V": 20,
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}, testProc.Values())
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}
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// Test a filter with the ../basic Processor.
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func TestFilterBasicProcessor(t *testing.T) {
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basicProc := basic.New(processorTest.AggregatorSelector(), export.CumulativeExportKindSelector())
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accum := metricsdk.NewAccumulator(
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reducer.New(testFilter{}, basicProc),
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resource.NewWithAttributes(label.String("R", "V")),
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)
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exporter := processorTest.NewExporter(basicProc, label.DefaultEncoder())
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generateData(accum)
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basicProc.StartCollection()
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accum.Collect(context.Background())
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if err := basicProc.FinishCollection(); err != nil {
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t.Error(err)
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}
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require.NoError(t, exporter.Export(context.Background(), basicProc.CheckpointSet()))
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require.EqualValues(t, map[string]float64{
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"counter.sum/A=1,C=3/R=V": 200,
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"observer.sum/A=1,C=3/R=V": 20,
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}, exporter.Values())
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}
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