mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-16 10:19:23 +02:00
296 lines
7.9 KiB
Go
296 lines
7.9 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 testtrace_test
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import (
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"context"
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"net/http"
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"testing"
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"github.com/google/go-cmp/cmp"
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"go.opentelemetry.io/otel/api/propagation"
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"go.opentelemetry.io/otel/api/trace"
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mocktrace "go.opentelemetry.io/otel/internal/trace"
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)
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var (
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traceID = mustTraceIDFromHex("4bf92f3577b34da6a3ce929d0e0e4736")
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spanID = mustSpanIDFromHex("00f067aa0ba902b7")
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)
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func mustTraceIDFromHex(s string) (t trace.ID) {
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t, _ = trace.IDFromHex(s)
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return
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}
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func mustSpanIDFromHex(s string) (t trace.SpanID) {
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t, _ = trace.SpanIDFromHex(s)
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return
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}
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func TestExtractValidTraceContextFromHTTPReq(t *testing.T) {
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props := propagation.New(propagation.WithExtractors(trace.TraceContext{}))
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tests := []struct {
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name string
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header string
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wantSc trace.SpanContext
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}{
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{
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name: "valid w3cHeader",
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header: "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-00",
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wantSc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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},
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},
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{
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name: "valid w3cHeader and sampled",
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header: "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01",
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wantSc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: trace.TraceFlagsSampled,
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},
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},
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{
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name: "future version",
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header: "02-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01",
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wantSc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: trace.TraceFlagsSampled,
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},
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},
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{
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name: "future options with sampled bit set",
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header: "02-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-09",
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wantSc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: trace.TraceFlagsSampled,
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},
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},
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{
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name: "future options with sampled bit cleared",
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header: "02-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-08",
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wantSc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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},
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},
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{
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name: "future additional data",
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header: "02-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-09-XYZxsf09",
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wantSc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: trace.TraceFlagsSampled,
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},
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},
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{
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name: "valid b3Header ending in dash",
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header: "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01-",
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wantSc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: trace.TraceFlagsSampled,
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},
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},
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{
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name: "future valid b3Header ending in dash",
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header: "01-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-09-",
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wantSc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: trace.TraceFlagsSampled,
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},
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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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req, _ := http.NewRequest("GET", "http://example.com", nil)
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req.Header.Set("traceparent", tt.header)
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ctx := context.Background()
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ctx = propagation.ExtractHTTP(ctx, props, req.Header)
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gotSc := trace.RemoteSpanContextFromContext(ctx)
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if diff := cmp.Diff(gotSc, tt.wantSc); diff != "" {
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t.Errorf("Extract Tracecontext: %s: -got +want %s", tt.name, diff)
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}
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})
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}
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}
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func TestExtractInvalidTraceContextFromHTTPReq(t *testing.T) {
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wantSc := trace.EmptySpanContext()
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props := propagation.New(propagation.WithExtractors(trace.TraceContext{}))
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tests := []struct {
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name string
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header string
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}{
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{
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name: "wrong version length",
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header: "0000-00000000000000000000000000000000-0000000000000000-01",
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},
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{
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name: "wrong trace ID length",
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header: "00-ab00000000000000000000000000000000-cd00000000000000-01",
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},
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{
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name: "wrong span ID length",
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header: "00-ab000000000000000000000000000000-cd0000000000000000-01",
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},
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{
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name: "wrong trace flag length",
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header: "00-ab000000000000000000000000000000-cd00000000000000-0100",
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},
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{
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name: "bogus version",
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header: "qw-00000000000000000000000000000000-0000000000000000-01",
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},
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{
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name: "bogus trace ID",
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header: "00-qw000000000000000000000000000000-cd00000000000000-01",
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},
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{
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name: "bogus span ID",
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header: "00-ab000000000000000000000000000000-qw00000000000000-01",
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},
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{
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name: "bogus trace flag",
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header: "00-ab000000000000000000000000000000-cd00000000000000-qw",
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},
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{
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name: "upper case version",
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header: "A0-00000000000000000000000000000000-0000000000000000-01",
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},
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{
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name: "upper case trace ID",
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header: "00-AB000000000000000000000000000000-cd00000000000000-01",
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},
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{
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name: "upper case span ID",
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header: "00-ab000000000000000000000000000000-CD00000000000000-01",
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},
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{
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name: "upper case trace flag",
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header: "00-ab000000000000000000000000000000-cd00000000000000-A1",
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},
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{
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name: "zero trace ID and span ID",
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header: "00-00000000000000000000000000000000-0000000000000000-01",
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},
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{
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name: "trace-flag unused bits set",
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header: "00-ab000000000000000000000000000000-cd00000000000000-09",
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},
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{
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name: "missing options",
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header: "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7",
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},
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{
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name: "empty options",
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header: "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-",
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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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req, _ := http.NewRequest("GET", "http://example.com", nil)
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req.Header.Set("traceparent", tt.header)
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ctx := context.Background()
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ctx = propagation.ExtractHTTP(ctx, props, req.Header)
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gotSc := trace.RemoteSpanContextFromContext(ctx)
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if diff := cmp.Diff(gotSc, wantSc); diff != "" {
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t.Errorf("Extract Tracecontext: %s: -got +want %s", tt.name, diff)
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}
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})
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}
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}
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func TestInjectTraceContextToHTTPReq(t *testing.T) {
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var id uint64
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mockTracer := &mocktrace.MockTracer{
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Sampled: false,
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StartSpanID: &id,
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}
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props := propagation.New(propagation.WithInjectors(trace.TraceContext{}))
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tests := []struct {
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name string
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sc trace.SpanContext
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wantHeader string
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}{
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{
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name: "valid spancontext, sampled",
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sc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: trace.TraceFlagsSampled,
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},
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wantHeader: "00-4bf92f3577b34da6a3ce929d0e0e4736-0000000000000001-01",
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},
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{
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name: "valid spancontext, not sampled",
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sc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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},
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wantHeader: "00-4bf92f3577b34da6a3ce929d0e0e4736-0000000000000002-00",
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},
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{
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name: "valid spancontext, with unsupported bit set in traceflags",
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sc: trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: 0xff,
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},
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wantHeader: "00-4bf92f3577b34da6a3ce929d0e0e4736-0000000000000003-01",
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},
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{
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name: "invalid spancontext",
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sc: trace.EmptySpanContext(),
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wantHeader: "",
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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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req, _ := http.NewRequest("GET", "http://example.com", nil)
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ctx := context.Background()
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if tt.sc.IsValid() {
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ctx = trace.ContextWithRemoteSpanContext(ctx, tt.sc)
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ctx, _ = mockTracer.Start(ctx, "inject")
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}
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propagation.InjectHTTP(ctx, props, req.Header)
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gotHeader := req.Header.Get("traceparent")
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if diff := cmp.Diff(gotHeader, tt.wantHeader); diff != "" {
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t.Errorf("Extract Tracecontext: %s: -got +want %s", tt.name, diff)
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}
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})
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}
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}
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func TestTraceContextPropagator_GetAllKeys(t *testing.T) {
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var propagator trace.TraceContext
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want := []string{"traceparent"}
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got := propagator.GetAllKeys()
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if diff := cmp.Diff(got, want); diff != "" {
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t.Errorf("GetAllKeys: -got +want %s", diff)
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}
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}
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