@Override
  public String toString() {
    return "Pipeline#" + hashCode();
  }
@Test
  public void testToString() {
    PipelineOptions options = PipelineOptionsFactory.as(PipelineOptions.class);
    options.setRunner(CrashingRunner.class);
    Pipeline pipeline = Pipeline.create(options);
    assertEquals("Pipeline#" + pipeline.hashCode(), pipeline.toString());
  }