@Test public void samplerLoadsLazy() {

  assertThat(declarativeSampler.methodToSamplers)
    .isEmpty();
  declarativeSampler.sample(traced(1.0f, 0, true));
  assertThat(declarativeSampler.methodToSamplers)
    .hasSize(1);
  declarativeSampler.sample(traced(0.0f, 0, true));
  assertThat(declarativeSampler.methodToSamplers)
    .hasSize(2);
}