1 package opentracing
2
3 import (
4 "reflect"
5 "testing"
6 )
7
8 func TestIsGlobalTracerRegisteredDefaultIsFalse(t *testing.T) {
9 if IsGlobalTracerRegistered() {
10 t.Errorf("Should return false when no global tracer is registered.")
11 }
12 }
13
14 func TestAfterSettingGlobalTracerIsGlobalTracerRegisteredReturnsTrue(t *testing.T) {
15 SetGlobalTracer(NoopTracer{})
16
17 if !IsGlobalTracerRegistered() {
18 t.Errorf("Should return true after a tracer has been registered.")
19 }
20 }
21
22 func TestDefaultTracerIsNoopTracer(t *testing.T) {
23 if reflect.TypeOf(GlobalTracer()) != reflect.TypeOf(NoopTracer{}) {
24 t.Errorf("Should return false when no global tracer is registered.")
25 }
26 }
27
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