mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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5dff273a1e
* Use gofumpt instead of gofmt in golangci-lint conf * Run gofumpt fixes * Format generated templates --------- Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>
126 lines
3.4 KiB
Go
126 lines
3.4 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 // import "go.opentelemetry.io/otel/sdk/metric"
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import (
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"context"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/suite"
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"go.opentelemetry.io/otel/metric"
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"go.opentelemetry.io/otel/sdk/metric/metricdata"
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)
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func TestManualReader(t *testing.T) {
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suite.Run(t, &readerTestSuite{Factory: func(opts ...ReaderOption) Reader {
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var mopts []ManualReaderOption
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for _, o := range opts {
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mopts = append(mopts, o)
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}
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return NewManualReader(mopts...)
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}})
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}
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func BenchmarkManualReader(b *testing.B) {
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b.Run("Collect", benchReaderCollectFunc(NewManualReader()))
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}
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var (
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deltaTemporalitySelector = func(InstrumentKind) metricdata.Temporality { return metricdata.DeltaTemporality }
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cumulativeTemporalitySelector = func(InstrumentKind) metricdata.Temporality { return metricdata.CumulativeTemporality }
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)
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func TestManualReaderTemporality(t *testing.T) {
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tests := []struct {
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name string
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options []ManualReaderOption
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// Currently only testing constant temporality. This should be expanded
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// if we put more advanced selection in the SDK
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wantTemporality metricdata.Temporality
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}{
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{
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name: "default",
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wantTemporality: metricdata.CumulativeTemporality,
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},
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{
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name: "delta",
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options: []ManualReaderOption{
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WithTemporalitySelector(deltaTemporalitySelector),
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},
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wantTemporality: metricdata.DeltaTemporality,
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},
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{
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name: "repeats overwrite",
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options: []ManualReaderOption{
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WithTemporalitySelector(deltaTemporalitySelector),
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WithTemporalitySelector(cumulativeTemporalitySelector),
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},
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wantTemporality: metricdata.CumulativeTemporality,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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var undefinedInstrument InstrumentKind
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rdr := NewManualReader(tt.options...)
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assert.Equal(t, tt.wantTemporality, rdr.temporality(undefinedInstrument))
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})
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}
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}
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func TestManualReaderCollect(t *testing.T) {
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expiredCtx, cancel := context.WithDeadline(context.Background(), time.Now().Add(-1))
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defer cancel()
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tests := []struct {
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name string
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ctx context.Context
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expectedErr error
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}{
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{
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name: "with a valid context",
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ctx: context.Background(),
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expectedErr: nil,
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},
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{
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name: "with an expired context",
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ctx: expiredCtx,
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expectedErr: context.DeadlineExceeded,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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rdr := NewManualReader()
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mp := NewMeterProvider(WithReader(rdr))
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meter := mp.Meter("test")
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// Ensure the pipeline has a callback setup
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testM, err := meter.Int64ObservableCounter("test")
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assert.NoError(t, err)
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_, err = meter.RegisterCallback(func(_ context.Context, o metric.Observer) error {
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return nil
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}, testM)
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assert.NoError(t, err)
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rm := &metricdata.ResourceMetrics{}
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assert.Equal(t, tt.expectedErr, rdr.Collect(tt.ctx, rm))
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})
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}
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}
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