old_contents: """Test fixtures."""
  
  # Python3 support
  from __future__ import print_function
  from __future__ import unicode_literals
  
  import ast
  
  import json
  import os
  
  NAPALM_TEST_MOCK = ast.literal_eval(os.getenv('NAPALM_TEST_MOCK', default="1"))
  NAPALM_HOSTNAME = os.getenv('NAPALM_HOSTNAME', default='127.0.0.1')
  NAPALM_USERNAME = os.getenv('NAPALM_USERNAME', default='vagrant')
  NAPALM_PASSWORD = os.getenv('NAPALM_PASSWORD', default='vagrant')
  NAPALM_OPTIONAL_ARGS = json.loads(os.getenv('NAPALM_OPTIONAL_ARGS', default='{"port": 12443}'))
  
  
  def set_device_parameters(request):
      """Set up the class."""
      if NAPALM_TEST_MOCK:
          driver = request.cls.patched_driver
      else:
          driver = request.cls.driver
  
      request.cls.device = driver(NAPALM_HOSTNAME,
                                  NAPALM_USERNAME,
                                  NAPALM_PASSWORD,
                                  timeout=60,
                                  optional_args=NAPALM_OPTIONAL_ARGS)
      request.cls.device.open()
  
  
  def pytest_generate_tests(metafunc, basefile):
      """Generate test cases dynamically."""
      if metafunc.function.__dict__.get('build_test_cases', False):
          print(basefile)
          path = os.path.join(os.path.dirname(basefile), 'mocked_data', metafunc.function.__name__)
  
          if os.path.exists(path):
              sub_folders = os.listdir(path)
          else:
              sub_folders = []
  
          test_cases = []
          for test_case in sub_folders:
              if os.path.isdir(os.path.join(path, test_case)):
                  test_cases.append(test_case)
  
          if not test_cases:
              test_cases.append("no_test_case_found")
  
          metafunc.parametrize("test_case", test_cases)
  
new_contents: """Test fixtures."""
  
  # Python3 support
  from __future__ import print_function
  from __future__ import unicode_literals
  
  import ast
  
  import json
  import os
  
  NAPALM_TEST_MOCK = ast.literal_eval(os.getenv('NAPALM_TEST_MOCK', default="1"))
  NAPALM_HOSTNAME = os.getenv('NAPALM_HOSTNAME', default='127.0.0.1')
  NAPALM_USERNAME = os.getenv('NAPALM_USERNAME', default='vagrant')
  NAPALM_PASSWORD = os.getenv('NAPALM_PASSWORD', default='vagrant')
  NAPALM_OPTIONAL_ARGS = json.loads(os.getenv('NAPALM_OPTIONAL_ARGS', default='{"port": 12443}'))
  
  
  def set_device_parameters(request):
      """Set up the class."""
      if NAPALM_TEST_MOCK:
          driver = request.cls.patched_driver
      else:
          driver = request.cls.driver
  
      request.cls.device = driver(NAPALM_HOSTNAME,
                                  NAPALM_USERNAME,
                                  NAPALM_PASSWORD,
                                  timeout=60,
                                  optional_args=NAPALM_OPTIONAL_ARGS)
      request.cls.device.open()
  
  
  def pytest_generate_tests(metafunc, basefile):
      """Generate test cases dynamically."""
      if metafunc.function.__dict__.get('build_test_cases', False):
          path = os.path.join(os.path.dirname(basefile), 'mocked_data', metafunc.function.__name__)
  
          if os.path.exists(path):
              sub_folders = os.listdir(path)
          else:
              sub_folders = []
  
          test_cases = []
          for test_case in sub_folders:
              if os.path.isdir(os.path.join(path, test_case)):
                  test_cases.append(test_case)
  
          if not test_cases:
              test_cases.append("no_test_case_found")
  
          metafunc.parametrize("test_case", test_cases)
  
subject: Remove unneeded print statement