mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-04 09:43:23 +02:00
15bfc5bb12
Also fixes example module paths so that they use the vanity URL instead of the github URL. [Closes #184]
171 lines
4.8 KiB
Go
171 lines
4.8 KiB
Go
// Copyright 2019, 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 propagation_test
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import (
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"testing"
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"github.com/google/go-cmp/cmp"
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"go.opentelemetry.io/otel/api/core"
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"go.opentelemetry.io/otel/propagation"
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)
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func TestExtractSpanContextFromBytes(t *testing.T) {
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traceID, _ := core.TraceIDFromHex("4bf92f3577b34da6a3ce929d0e0e4736")
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spanID, _ := core.SpanIDFromHex("00f067aa0ba902b7")
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propagator := propagation.BinaryPropagator()
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tests := []struct {
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name string
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bytes []byte
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wantSc core.SpanContext
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}{
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{
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name: "future version of the proto",
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bytes: []byte{
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0x02, 0x00, 0x4b, 0xf9, 0x2f, 0x35, 0x77, 0xb3, 0x4d, 0xa6, 0xa3, 0xce, 0x92, 0x9d, 0x0e, 0x0e, 0x47, 0x36,
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0x01, 0x00, 0xf0, 0x67, 0xaa, 0x0b, 0xa9, 0x02, 0xb7,
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0x02, 0x01,
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},
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wantSc: core.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: core.TraceFlagsSampled,
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},
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},
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{
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name: "current version with valid SpanContext and with Sampled bit set",
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bytes: []byte{
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0x00, 0x00, 0x4b, 0xf9, 0x2f, 0x35, 0x77, 0xb3, 0x4d, 0xa6, 0xa3, 0xce, 0x92, 0x9d, 0x0e, 0x0e, 0x47, 0x36,
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0x01, 0x00, 0xf0, 0x67, 0xaa, 0x0b, 0xa9, 0x02, 0xb7,
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0x02, 0x01,
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},
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wantSc: core.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: core.TraceFlagsSampled,
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},
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},
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{
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name: "valid SpanContext without option",
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bytes: []byte{
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0x00, 0x00, 0x4b, 0xf9, 0x2f, 0x35, 0x77, 0xb3, 0x4d, 0xa6, 0xa3, 0xce, 0x92, 0x9d, 0x0e, 0x0e, 0x47, 0x36,
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0x01, 0x00, 0xf0, 0x67, 0xaa, 0x0b, 0xa9, 0x02, 0xb7,
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},
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wantSc: core.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: "zero trace ID",
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bytes: []byte{
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x02, 0x01,
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},
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wantSc: core.EmptySpanContext(),
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},
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{
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name: "zero span ID",
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bytes: []byte{
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0x00, 0x00, 0x4b, 0xf9, 0x2f, 0x35, 0x77, 0xb3, 0x4d, 0xa6, 0xa3, 0xce, 0x92, 0x9d, 0x0e, 0x0e, 0x47, 0x36,
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x02, 0x01,
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},
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wantSc: core.EmptySpanContext(),
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},
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{
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name: "wrong trace ID field number",
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bytes: []byte{
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0x00, 0x01, 0x4b, 0xf9, 0x2f, 0x35, 0x77, 0xb3, 0x4d, 0xa6, 0xa3, 0xce, 0x92, 0x9d, 0x0e, 0x0e, 0x47, 0x36,
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0x01, 0x00, 0xf0, 0x67, 0xaa, 0x0b, 0xa9, 0x02, 0xb7,
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},
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wantSc: core.EmptySpanContext(),
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},
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{
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name: "short byte array",
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bytes: []byte{
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0x00, 0x00, 0x4b, 0xf9, 0x2f, 0x35, 0x77, 0xb3, 0x4d,
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},
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wantSc: core.EmptySpanContext(),
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},
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{
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name: "nil byte array",
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wantSc: core.EmptySpanContext(),
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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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gotSc := propagator.FromBytes(tt.bytes)
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if diff := cmp.Diff(gotSc, tt.wantSc); diff != "" {
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t.Errorf("Deserialize SpanContext from byte array: %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 TestConvertSpanContextToBytes(t *testing.T) {
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traceID, _ := core.TraceIDFromHex("4bf92f3577b34da6a3ce929d0e0e4736")
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spanID, _ := core.SpanIDFromHex("00f067aa0ba902b7")
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propagator := propagation.BinaryPropagator()
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tests := []struct {
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name string
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sc core.SpanContext
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bytes []byte
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}{
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{
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name: "valid SpanContext, with sampling bit set",
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sc: core.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: core.TraceFlagsSampled,
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},
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bytes: []byte{
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0x00, 0x00, 0x4b, 0xf9, 0x2f, 0x35, 0x77, 0xb3, 0x4d, 0xa6, 0xa3, 0xce, 0x92, 0x9d, 0x0e, 0x0e, 0x47, 0x36,
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0x01, 0x00, 0xf0, 0x67, 0xaa, 0x0b, 0xa9, 0x02, 0xb7,
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0x02, 0x01,
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},
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},
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{
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name: "valid SpanContext, with sampling bit cleared",
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sc: core.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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},
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bytes: []byte{
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0x00, 0x00, 0x4b, 0xf9, 0x2f, 0x35, 0x77, 0xb3, 0x4d, 0xa6, 0xa3, 0xce, 0x92, 0x9d, 0x0e, 0x0e, 0x47, 0x36,
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0x01, 0x00, 0xf0, 0x67, 0xaa, 0x0b, 0xa9, 0x02, 0xb7,
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0x02, 0x00,
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},
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},
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{
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name: "invalid spancontext",
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sc: core.EmptySpanContext(),
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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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gotBytes := propagator.ToBytes(tt.sc)
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if diff := cmp.Diff(gotBytes, tt.bytes); diff != "" {
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t.Errorf("Serialize SpanContext to byte array: %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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