old_contents: import os
  import pytest
  from pywatson.watson import Watson
  
  
  @pytest.fixture
  def config():
      """Get Watson configuration from the environment
  
      :return: dict with keys 'url', 'username', and 'password'
      """
      try:
          return {
              'url': os.environ['WATSON_URL'],
              'username': os.environ['WATSON_USERNAME'],
              'password': os.environ['WATSON_PASSWORD']
          }
      except KeyError as err:
          raise Exception('You must set the environment variable {}'.format(err.args[0]))
  
  
  @pytest.fixture
  def watson(config):
      return Watson(url=config['url'], username=config['username'], password=config['password'])
  
new_contents: import json
  import os
  import pytest
  from pywatson.watson import Watson
  
  
  @pytest.fixture
  def config():
      """Get Watson configuration from the environment
  
      :return: dict with keys 'url', 'username', and 'password'
      """
      try:
          return {
              'url': os.environ['WATSON_URL'],
              'username': os.environ['WATSON_USERNAME'],
              'password': os.environ['WATSON_PASSWORD']
          }
      except KeyError as err:
          raise Exception('You must set the environment variable {}'.format(err.args[0]))
  
  
  @pytest.fixture
  def watson(config):
      return Watson(url=config['url'], username=config['username'], password=config['password'])
  
  
  @pytest.fixture
  def questions():
      qs = []
  
      for root, dirs, files in os.walk('tests/json/questions'):
          for filename in files:
              filepath = os.path.join(root, filename)
              try:
                  qs.append(json.load(open(filepath)))
              except ValueError:
                  raise ValueError('Expected {} to contain valid JSON'.format(filepath))
  
      return qs
  
subject: Implement test data JSON loader