mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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478dc4fe40
* move Descriptor to sdkapi, add test * rename Descriptor to sdkapi * precommit * Move the rest of the sdkapi * use alias for Observation and Measurement * Changelog * pr num * comment Measurement and Observation * swap comments * move->moved
345 lines
8.8 KiB
Go
345 lines
8.8 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 global_test
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import (
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"context"
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"errors"
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"testing"
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"github.com/stretchr/testify/require"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/internal/metric/global"
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"go.opentelemetry.io/otel/metric"
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metricglobal "go.opentelemetry.io/otel/metric/global"
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"go.opentelemetry.io/otel/metric/metrictest"
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"go.opentelemetry.io/otel/metric/number"
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"go.opentelemetry.io/otel/metric/sdkapi"
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)
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var Must = metric.Must
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var asInt = number.NewInt64Number
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var asFloat = number.NewFloat64Number
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func TestDirect(t *testing.T) {
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global.ResetForTest()
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ctx := context.Background()
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meter1 := metricglobal.Meter("test1", metric.WithInstrumentationVersion("semver:v1.0.0"))
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meter2 := metricglobal.Meter("test2", metric.WithSchemaURL("hello"))
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library1 := metrictest.Library{
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InstrumentationName: "test1",
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InstrumentationVersion: "semver:v1.0.0",
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}
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library2 := metrictest.Library{
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InstrumentationName: "test2",
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SchemaURL: "hello",
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}
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labels1 := []attribute.KeyValue{attribute.String("A", "B")}
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labels2 := []attribute.KeyValue{attribute.String("C", "D")}
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labels3 := []attribute.KeyValue{attribute.String("E", "F")}
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counter := Must(meter1).NewInt64Counter("test.counter")
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counter.Add(ctx, 1, labels1...)
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counter.Add(ctx, 1, labels1...)
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histogram := Must(meter1).NewFloat64Histogram("test.histogram")
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histogram.Record(ctx, 1, labels1...)
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histogram.Record(ctx, 2, labels1...)
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_ = Must(meter1).NewFloat64GaugeObserver("test.gauge.float", func(_ context.Context, result metric.Float64ObserverResult) {
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result.Observe(1., labels1...)
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result.Observe(2., labels2...)
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})
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_ = Must(meter1).NewInt64GaugeObserver("test.gauge.int", func(_ context.Context, result metric.Int64ObserverResult) {
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result.Observe(1, labels1...)
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result.Observe(2, labels2...)
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})
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second := Must(meter2).NewFloat64Histogram("test.second")
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second.Record(ctx, 1, labels3...)
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second.Record(ctx, 2, labels3...)
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provider := metrictest.NewMeterProvider()
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metricglobal.SetMeterProvider(provider)
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counter.Add(ctx, 1, labels1...)
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histogram.Record(ctx, 3, labels1...)
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second.Record(ctx, 3, labels3...)
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provider.RunAsyncInstruments()
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measurements := metrictest.AsStructs(provider.MeasurementBatches)
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require.EqualValues(t,
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[]metrictest.Measured{
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{
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Name: "test.counter",
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Library: library1,
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Labels: metrictest.LabelsToMap(labels1...),
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Number: asInt(1),
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},
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{
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Name: "test.histogram",
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Library: library1,
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Labels: metrictest.LabelsToMap(labels1...),
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Number: asFloat(3),
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},
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{
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Name: "test.second",
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Library: library2,
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Labels: metrictest.LabelsToMap(labels3...),
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Number: asFloat(3),
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},
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{
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Name: "test.gauge.float",
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Library: library1,
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Labels: metrictest.LabelsToMap(labels1...),
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Number: asFloat(1),
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},
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{
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Name: "test.gauge.float",
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Library: library1,
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Labels: metrictest.LabelsToMap(labels2...),
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Number: asFloat(2),
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},
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{
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Name: "test.gauge.int",
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Library: library1,
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Labels: metrictest.LabelsToMap(labels1...),
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Number: asInt(1),
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},
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{
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Name: "test.gauge.int",
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Library: library1,
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Labels: metrictest.LabelsToMap(labels2...),
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Number: asInt(2),
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},
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},
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measurements,
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)
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}
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func TestBound(t *testing.T) {
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global.ResetForTest()
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// Note: this test uses opposite Float64/Int64 number kinds
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// vs. the above, to cover all the instruments.
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ctx := context.Background()
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glob := metricglobal.Meter(
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"test",
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metric.WithInstrumentationVersion("semver:test-1.0"),
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metric.WithSchemaURL("schema://url"),
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)
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labels1 := []attribute.KeyValue{attribute.String("A", "B")}
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counter := Must(glob).NewFloat64Counter("test.counter")
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boundC := counter.Bind(labels1...)
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boundC.Add(ctx, 1)
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boundC.Add(ctx, 1)
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histogram := Must(glob).NewInt64Histogram("test.histogram")
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boundM := histogram.Bind(labels1...)
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boundM.Record(ctx, 1)
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boundM.Record(ctx, 2)
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provider := metrictest.NewMeterProvider()
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metricglobal.SetMeterProvider(provider)
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boundC.Add(ctx, 1)
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boundM.Record(ctx, 3)
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library := metrictest.Library{
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InstrumentationName: "test",
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InstrumentationVersion: "semver:test-1.0",
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SchemaURL: "schema://url",
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}
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require.EqualValues(t,
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[]metrictest.Measured{
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{
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Name: "test.counter",
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Library: library,
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Labels: metrictest.LabelsToMap(labels1...),
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Number: asFloat(1),
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},
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{
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Name: "test.histogram",
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Library: library,
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Labels: metrictest.LabelsToMap(labels1...),
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Number: asInt(3),
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},
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},
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metrictest.AsStructs(provider.MeasurementBatches))
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boundC.Unbind()
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boundM.Unbind()
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}
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func TestUnbind(t *testing.T) {
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// Tests Unbind with SDK never installed.
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global.ResetForTest()
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glob := metricglobal.Meter("test")
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labels1 := []attribute.KeyValue{attribute.String("A", "B")}
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counter := Must(glob).NewFloat64Counter("test.counter")
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boundC := counter.Bind(labels1...)
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histogram := Must(glob).NewInt64Histogram("test.histogram")
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boundM := histogram.Bind(labels1...)
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boundC.Unbind()
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boundM.Unbind()
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}
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func TestUnbindThenRecordOne(t *testing.T) {
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global.ResetForTest()
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ctx := context.Background()
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provider := metrictest.NewMeterProvider()
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meter := metricglobal.Meter("test")
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counter := Must(meter).NewInt64Counter("test.counter")
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boundC := counter.Bind()
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metricglobal.SetMeterProvider(provider)
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boundC.Unbind()
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require.NotPanics(t, func() {
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boundC.Add(ctx, 1)
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})
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require.Equal(t, 0, len(provider.MeasurementBatches))
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}
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type meterProviderWithConstructorError struct {
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metric.MeterProvider
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}
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type meterWithConstructorError struct {
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sdkapi.MeterImpl
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}
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func (m *meterProviderWithConstructorError) Meter(iName string, opts ...metric.MeterOption) metric.Meter {
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return metric.WrapMeterImpl(&meterWithConstructorError{m.MeterProvider.Meter(iName, opts...).MeterImpl()})
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}
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func (m *meterWithConstructorError) NewSyncInstrument(_ sdkapi.Descriptor) (sdkapi.SyncImpl, error) {
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return sdkapi.NewNoopSyncInstrument(), errors.New("constructor error")
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}
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func TestErrorInDeferredConstructor(t *testing.T) {
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global.ResetForTest()
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ctx := context.Background()
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meter := metricglobal.GetMeterProvider().Meter("builtin")
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c1 := Must(meter).NewInt64Counter("test")
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c2 := Must(meter).NewInt64Counter("test")
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provider := metrictest.NewMeterProvider()
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sdk := &meterProviderWithConstructorError{provider}
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require.Panics(t, func() {
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metricglobal.SetMeterProvider(sdk)
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})
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c1.Add(ctx, 1)
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c2.Add(ctx, 2)
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}
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func TestImplementationIndirection(t *testing.T) {
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global.ResetForTest()
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// Test that Implementation() does the proper indirection, i.e.,
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// returns the implementation interface not the global, after
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// registered.
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meter1 := metricglobal.Meter("test1")
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// Sync: no SDK yet
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counter := Must(meter1).NewInt64Counter("interface.counter")
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ival := counter.Measurement(1).SyncImpl().Implementation()
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require.NotNil(t, ival)
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_, ok := ival.(*metrictest.Sync)
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require.False(t, ok)
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// Async: no SDK yet
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gauge := Must(meter1).NewFloat64GaugeObserver(
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"interface.gauge",
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func(_ context.Context, result metric.Float64ObserverResult) {},
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)
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ival = gauge.AsyncImpl().Implementation()
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require.NotNil(t, ival)
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_, ok = ival.(*metrictest.Async)
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require.False(t, ok)
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// Register the SDK
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provider := metrictest.NewMeterProvider()
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metricglobal.SetMeterProvider(provider)
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// Repeat the above tests
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// Sync
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ival = counter.Measurement(1).SyncImpl().Implementation()
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require.NotNil(t, ival)
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_, ok = ival.(*metrictest.Sync)
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require.True(t, ok)
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// Async
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ival = gauge.AsyncImpl().Implementation()
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require.NotNil(t, ival)
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_, ok = ival.(*metrictest.Async)
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require.True(t, ok)
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}
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func TestRecordBatchMock(t *testing.T) {
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global.ResetForTest()
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meter := metricglobal.GetMeterProvider().Meter("builtin")
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counter := Must(meter).NewInt64Counter("test.counter")
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meter.RecordBatch(context.Background(), nil, counter.Measurement(1))
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provider := metrictest.NewMeterProvider()
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metricglobal.SetMeterProvider(provider)
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meter.RecordBatch(context.Background(), nil, counter.Measurement(1))
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require.EqualValues(t,
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[]metrictest.Measured{
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{
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Name: "test.counter",
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Library: metrictest.Library{
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InstrumentationName: "builtin",
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},
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Labels: metrictest.LabelsToMap(),
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Number: asInt(1),
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},
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},
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metrictest.AsStructs(provider.MeasurementBatches))
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}
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