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- // Copyright The OpenTelemetry Authors
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- package trace
- import (
- "context"
- "testing"
- )
- func TestNewNoopTracerProvider(t *testing.T) {
- got, want := NewNoopTracerProvider(), noopTracerProvider{}
- if got != want {
- t.Errorf("NewNoopTracerProvider() returned %#v, want %#v", got, want)
- }
- }
- func TestNoopTracerProviderTracer(t *testing.T) {
- tp := NewNoopTracerProvider()
- got, want := tp.Tracer(""), noopTracer{}
- if got != want {
- t.Errorf("noopTracerProvider.Tracer() returned %#v, want %#v", got, want)
- }
- }
- func TestNoopTracerStart(t *testing.T) {
- ctx := context.Background()
- tracer := NewNoopTracerProvider().Tracer("test instrumentation")
- var span Span
- ctx, span = tracer.Start(ctx, "span name")
- got, ok := span.(noopSpan)
- if !ok {
- t.Fatalf("noopTracer.Start() returned a non-noopSpan: %#v", span)
- }
- want := noopSpan{}
- if got != want {
- t.Errorf("noopTracer.Start() returned %#v, want %#v", got, want)
- }
- got, ok = SpanFromContext(ctx).(noopSpan)
- if !ok {
- t.Fatal("noopTracer.Start() did not set span as current in returned context")
- }
- if got != want {
- t.Errorf("noopTracer.Start() current span in returned context set to %#v, want %#v", got, want)
- }
- }
- func TestNoopSpan(t *testing.T) {
- tracer := NewNoopTracerProvider().Tracer("test instrumentation")
- _, s := tracer.Start(context.Background(), "test span")
- span := s.(noopSpan)
- if got, want := span.SpanContext(), (SpanContext{}); !assertSpanContextEqual(got, want) {
- t.Errorf("span.SpanContext() returned %#v, want %#v", got, want)
- }
- if got, want := span.IsRecording(), false; got != want {
- t.Errorf("span.IsRecording() returned %#v, want %#v", got, want)
- }
- }
- func TestNonRecordingSpanTracerStart(t *testing.T) {
- tid, err := TraceIDFromHex("01000000000000000000000000000000")
- if err != nil {
- t.Fatalf("failure creating TraceID: %s", err.Error())
- }
- sid, err := SpanIDFromHex("0200000000000000")
- if err != nil {
- t.Fatalf("failure creating SpanID: %s", err.Error())
- }
- sc := NewSpanContext(SpanContextConfig{TraceID: tid, SpanID: sid})
- ctx := ContextWithSpanContext(context.Background(), sc)
- _, span := NewNoopTracerProvider().Tracer("test instrumentation").Start(ctx, "span1")
- if got, want := span.SpanContext(), sc; !assertSpanContextEqual(got, want) {
- t.Errorf("SpanContext not carried by nonRecordingSpan. got %#v, want %#v", got, want)
- }
- }
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