@Test public void handleReceive_traceIdSamplerSpecialCased() {

  Sampler sampler = mock(Sampler.class);
  init(httpTracingBuilder(tracingBuilder().sampler(sampler))
      .serverSampler(SamplerFunctions.deferDecision()));
  assertThat(handler.handleReceive(request).isNoop()).isTrue();
  verify(sampler).isSampled(anyLong());
}