old_contents: import pytest
  from rasa.core.validator import Validator
  from tests.core.conftest import (
      DEFAULT_DOMAIN_PATH,
      DEFAULT_STORIES_FILE,
      DEFAULT_NLU_DATA,
  )
  from rasa.core.domain import Domain
  from rasa.nlu.training_data import TrainingData
  
  
  @pytest.fixture
  def validator():
      return Validator.from_files(
          domain_file=DEFAULT_DOMAIN_PATH,
          nlu_data=DEFAULT_NLU_DATA,
          story_data=DEFAULT_STORIES_FILE,
      )
  
  
  def test_validator_creation(validator):
      assert isinstance(validator.domain, Domain)
      assert isinstance(validator.intents, TrainingData)
      assert isinstance(validator.stories, list)
  
  
  def test_verify_intents(validator):
      valid_intents = ["greet", "goodbye", "affirm"]
      validator.verify_intents()
      assert set(validator.valid_intents) == set(valid_intents)
  
  
  def test_verify_utterances(validator):
      valid_utterances = ["utter_greet", "utter_goodbye", "utter_default"]
      validator.verify_utterances()
      assert set(validator.valid_utterances) == set(valid_utterances)
  
new_contents: import pytest
  from rasa.core.validator import Validator
  from tests.core.conftest import (
      DEFAULT_DOMAIN_PATH,
      DEFAULT_STORIES_FILE,
      DEFAULT_NLU_DATA,
  )
  from rasa.core.domain import Domain
  from rasa.nlu.training_data import TrainingData
  
  
  @pytest.fixture
  async def validator():
      return await Validator.from_files(
          domain_file=DEFAULT_DOMAIN_PATH,
          nlu_data=DEFAULT_NLU_DATA,
          story_data=DEFAULT_STORIES_FILE,
      )
  
  
  def test_validator_creation(validator):
      assert isinstance(validator.domain, Domain)
      assert isinstance(validator.intents, TrainingData)
      assert isinstance(validator.stories, list)
  
  
  def test_verify_intents(validator):
      valid_intents = [intent for intent in validator.domain.intents]
      verified_intents = validator.verify_intents()
      assert set(verified_intents) == set(valid_intents)
  
  
  def test_verify_utterances(validator):
      valid_utterances = ["utter_greet", "utter_goodbye", "utter_default"]
      verified_utterances = validator.verify_utterances()
      assert set(verified_utterances) == set(valid_utterances)
  
subject: update tests