mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-04 09:43:23 +02:00
fd5284f75c
* internal/global: Fix goroutine leaks in tests
202 lines
5.2 KiB
Go
202 lines
5.2 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 trace_test
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import (
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"context"
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"errors"
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"sync"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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sdktrace "go.opentelemetry.io/otel/sdk/trace"
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"go.opentelemetry.io/otel/trace"
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)
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var (
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tid, _ = trace.TraceIDFromHex("01020304050607080102040810203040")
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sid, _ = trace.SpanIDFromHex("0102040810203040")
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)
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type testExporter struct {
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spans []sdktrace.ReadOnlySpan
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shutdown bool
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}
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func (t *testExporter) ExportSpans(ctx context.Context, spans []sdktrace.ReadOnlySpan) error {
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t.spans = append(t.spans, spans...)
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return nil
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}
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func (t *testExporter) Shutdown(ctx context.Context) error {
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t.shutdown = true
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select {
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case <-ctx.Done():
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// Ensure context deadline tests receive the expected error.
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return ctx.Err()
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default:
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return nil
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}
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}
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var _ sdktrace.SpanExporter = (*testExporter)(nil)
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func TestNewSimpleSpanProcessor(t *testing.T) {
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if ssp := sdktrace.NewSimpleSpanProcessor(&testExporter{}); ssp == nil {
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t.Error("failed to create new SimpleSpanProcessor")
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}
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}
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func TestNewSimpleSpanProcessorWithNilExporter(t *testing.T) {
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if ssp := sdktrace.NewSimpleSpanProcessor(nil); ssp == nil {
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t.Error("failed to create new SimpleSpanProcessor with nil exporter")
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}
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}
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func startSpan(tp trace.TracerProvider) trace.Span {
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tr := tp.Tracer("SimpleSpanProcessor")
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sc := trace.NewSpanContext(trace.SpanContextConfig{
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TraceID: tid,
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SpanID: sid,
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TraceFlags: 0x1,
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})
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ctx := trace.ContextWithRemoteSpanContext(context.Background(), sc)
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_, span := tr.Start(ctx, "OnEnd")
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return span
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}
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func TestSimpleSpanProcessorOnEnd(t *testing.T) {
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tp := basicTracerProvider(t)
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te := testExporter{}
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ssp := sdktrace.NewSimpleSpanProcessor(&te)
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tp.RegisterSpanProcessor(ssp)
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startSpan(tp).End()
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wantTraceID := tid
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gotTraceID := te.spans[0].SpanContext().TraceID()
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if wantTraceID != gotTraceID {
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t.Errorf("SimplerSpanProcessor OnEnd() check: got %+v, want %+v\n", gotTraceID, wantTraceID)
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}
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}
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func TestSimpleSpanProcessorShutdown(t *testing.T) {
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exporter := &testExporter{}
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ssp := sdktrace.NewSimpleSpanProcessor(exporter)
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// Ensure we can export a span before we test we cannot after shutdown.
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tp := basicTracerProvider(t)
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tp.RegisterSpanProcessor(ssp)
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startSpan(tp).End()
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nExported := len(exporter.spans)
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if nExported != 1 {
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t.Error("failed to verify span export")
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}
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if err := ssp.Shutdown(context.Background()); err != nil {
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t.Errorf("shutting the SimpleSpanProcessor down: %v", err)
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}
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if !exporter.shutdown {
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t.Error("SimpleSpanProcessor.Shutdown did not shut down exporter")
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}
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startSpan(tp).End()
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if len(exporter.spans) > nExported {
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t.Error("exported span to shutdown exporter")
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}
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}
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func TestSimpleSpanProcessorShutdownOnEndConcurrentSafe(t *testing.T) {
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exporter := &testExporter{}
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ssp := sdktrace.NewSimpleSpanProcessor(exporter)
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tp := basicTracerProvider(t)
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tp.RegisterSpanProcessor(ssp)
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stop := make(chan struct{})
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done := make(chan struct{})
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go func() {
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defer func() {
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done <- struct{}{}
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}()
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for {
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select {
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case <-stop:
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return
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default:
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startSpan(tp).End()
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}
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}
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}()
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if err := ssp.Shutdown(context.Background()); err != nil {
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t.Errorf("shutting the SimpleSpanProcessor down: %v", err)
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}
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if !exporter.shutdown {
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t.Error("SimpleSpanProcessor.Shutdown did not shut down exporter")
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}
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stop <- struct{}{}
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<-done
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}
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func TestSimpleSpanProcessorShutdownOnEndConcurrentSafe2(t *testing.T) {
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exporter := &testExporter{}
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ssp := sdktrace.NewSimpleSpanProcessor(exporter)
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tp := basicTracerProvider(t)
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tp.RegisterSpanProcessor(ssp)
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var wg sync.WaitGroup
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wg.Add(2)
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span := func(spanName string) {
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assert.NotPanics(t, func() {
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defer wg.Done()
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_, span := tp.Tracer("test").Start(context.Background(), spanName)
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span.End()
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})
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}
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go span("test-span-1")
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go span("test-span-2")
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wg.Wait()
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assert.NoError(t, ssp.Shutdown(context.Background()))
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assert.True(t, exporter.shutdown, "exporter shutdown")
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}
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func TestSimpleSpanProcessorShutdownHonorsContextDeadline(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), time.Nanosecond)
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defer cancel()
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<-ctx.Done()
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ssp := sdktrace.NewSimpleSpanProcessor(&testExporter{})
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if got, want := ssp.Shutdown(ctx), context.DeadlineExceeded; !errors.Is(got, want) {
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t.Errorf("SimpleSpanProcessor.Shutdown did not return %v, got %v", want, got)
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}
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}
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func TestSimpleSpanProcessorShutdownHonorsContextCancel(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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cancel()
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ssp := sdktrace.NewSimpleSpanProcessor(&testExporter{})
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if got, want := ssp.Shutdown(ctx), context.Canceled; !errors.Is(got, want) {
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t.Errorf("SimpleSpanProcessor.Shutdown did not return %v, got %v", want, got)
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}
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}
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