package testtrace_test import ( "context" "net/http" "testing" "go.opentelemetry.io/otel/api/core" "go.opentelemetry.io/otel/api/trace" mocktrace "go.opentelemetry.io/otel/internal/trace" ) func BenchmarkInject(b *testing.B) { var t trace.TraceContext injectSubBenchmarks(b, func(ctx context.Context, b *testing.B) { req, _ := http.NewRequest("GET", "http://example.com", nil) b.ResetTimer() for i := 0; i < b.N; i++ { t.Inject(ctx, req.Header) } }) } func injectSubBenchmarks(b *testing.B, fn func(context.Context, *testing.B)) { b.Run("SampledSpanContext", func(b *testing.B) { var id uint64 spanID, _ := core.SpanIDFromHex("00f067aa0ba902b7") traceID, _ := core.TraceIDFromHex("4bf92f3577b34da6a3ce929d0e0e4736") mockTracer := &mocktrace.MockTracer{ Sampled: false, StartSpanID: &id, } b.ReportAllocs() sc := core.SpanContext{ TraceID: traceID, SpanID: spanID, TraceFlags: core.TraceFlagsSampled, } ctx := trace.ContextWithRemoteSpanContext(context.Background(), sc) ctx, _ = mockTracer.Start(ctx, "inject") fn(ctx, b) }) b.Run("WithoutSpanContext", func(b *testing.B) { b.ReportAllocs() ctx := context.Background() fn(ctx, b) }) } func BenchmarkExtract(b *testing.B) { extractSubBenchmarks(b, func(b *testing.B, req *http.Request) { var propagator trace.TraceContext ctx := context.Background() b.ResetTimer() for i := 0; i < b.N; i++ { propagator.Extract(ctx, req.Header) } }) } func extractSubBenchmarks(b *testing.B, fn func(*testing.B, *http.Request)) { b.Run("Sampled", func(b *testing.B) { req, _ := http.NewRequest("GET", "http://example.com", nil) req.Header.Set("traceparent", "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01") b.ReportAllocs() fn(b, req) }) b.Run("BogusVersion", func(b *testing.B) { req, _ := http.NewRequest("GET", "http://example.com", nil) req.Header.Set("traceparent", "qw-00000000000000000000000000000000-0000000000000000-01") b.ReportAllocs() fn(b, req) }) b.Run("FutureAdditionalData", func(b *testing.B) { req, _ := http.NewRequest("GET", "http://example.com", nil) req.Header.Set("traceparent", "02-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-09-XYZxsf09") b.ReportAllocs() fn(b, req) }) }