### Question:
DefaultResponsesDiffValidatorFactory implements ResponsesDiffValidatorFactory { @Override public List<ResponsesDiffValidator> create() { List<ResponsesDiffValidator> validators = new ArrayList<>(); validators.add(new ResponsesResponsesDiffValidator(responseDiffValidatorFactory.create())); return Collections.unmodifiableList(validators); } DefaultResponsesDiffValidatorFactory(
      ResponseDiffValidatorFactory responseDiffValidatorFactory); @Override List<ResponsesDiffValidator> create();  }### Answer:
@Test public void create() { List<ResponsesDiffValidator> validators = validatorFactory.create(); assertThat(validators).hasSize(1); }