mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-12 10:04:29 +02:00
4d0101ae12
* Rename processor/test to processortest * Rename controller/test to controllertest * Rename testharness to apitest * Rename testtrace to tracetest
98 lines
3.1 KiB
Go
98 lines
3.1 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 tracetest_test
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import (
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"context"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"go.opentelemetry.io/otel/api/propagation"
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"go.opentelemetry.io/otel/api/trace"
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)
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type outOfThinAirPropagator struct {
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t *testing.T
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}
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var _ propagation.HTTPPropagator = outOfThinAirPropagator{}
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func (p outOfThinAirPropagator) Extract(ctx context.Context, supplier propagation.HTTPSupplier) context.Context {
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traceID, err := trace.IDFromHex("938753245abe987f098c0987a9873987")
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require.NoError(p.t, err)
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spanID, err := trace.SpanIDFromHex("2345f98c0987a09d")
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require.NoError(p.t, err)
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sc := trace.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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TraceFlags: 0,
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}
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require.True(p.t, sc.IsValid())
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return trace.ContextWithRemoteSpanContext(ctx, sc)
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}
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func (outOfThinAirPropagator) Inject(context.Context, propagation.HTTPSupplier) {}
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func (outOfThinAirPropagator) GetAllKeys() []string {
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return nil
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}
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type nilSupplier struct{}
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var _ propagation.HTTPSupplier = nilSupplier{}
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func (nilSupplier) Get(key string) string {
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return ""
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}
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func (nilSupplier) Set(key string, value string) {}
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func TestMultiplePropagators(t *testing.T) {
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ootaProp := outOfThinAirPropagator{t: t}
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ns := nilSupplier{}
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testProps := []propagation.HTTPPropagator{
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trace.TraceContext{},
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trace.B3{},
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trace.B3{InjectEncoding: trace.B3SingleHeader},
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trace.B3{InjectEncoding: trace.B3SingleHeader | trace.B3MultipleHeader},
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}
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bg := context.Background()
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// sanity check of oota propagator, ensuring that it really
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// generates the valid span context out of thin air
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{
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props := propagation.New(propagation.WithExtractors(ootaProp))
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ctx := propagation.ExtractHTTP(bg, props, ns)
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sc := trace.RemoteSpanContextFromContext(ctx)
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require.True(t, sc.IsValid(), "oota prop failed sanity check")
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}
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// sanity check for real propagators, ensuring that they
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// really are not putting any valid span context into an empty
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// go context in absence of the HTTP headers.
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for _, prop := range testProps {
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props := propagation.New(propagation.WithExtractors(prop))
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ctx := propagation.ExtractHTTP(bg, props, ns)
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sc := trace.RemoteSpanContextFromContext(ctx)
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require.Falsef(t, sc.IsValid(), "%#v failed sanity check", prop)
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}
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for _, prop := range testProps {
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props := propagation.New(propagation.WithExtractors(ootaProp, prop))
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ctx := propagation.ExtractHTTP(bg, props, ns)
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sc := trace.RemoteSpanContextFromContext(ctx)
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assert.Truef(t, sc.IsValid(), "%#v clobbers span context", prop)
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}
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}
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