func TestPPROFLabelRootSpanRace(t *testing.T) {
	tracer, _, _, stop := startTestTracer(t)
	defer stop()
	parent := tracer.StartSpan("parent")
	var wg sync.WaitGroup
	wg.Add(1)
	go func() {
		defer wg.Done()
		for i := 0; i < 1000; i++ {
			tracer.StartSpan("child", ChildOf(parent.Context()))
		}
	}()
	wg.Add(1)
	go func() {
		defer wg.Done()
		for i := 0; i < 1000; i++ {
			parent.SetTag(ext.ResourceName, "x")
		}
	}()
	wg.Wait()
}