old_contents: import os
  
  from tvrenamr.cli import helpers
  
  from .base import BaseTest
  
  
  class TestFrontEnd(BaseTest):
      def setup(self):
          super(TestFrontEnd, self).setup()
          self.config = helpers.get_config()
  
      def test_passing_current_dir_makes_file_list_a_list(self):
          assert isinstance(helpers.build_file_list([self.files]), list)
  
      def test_setting_recursive_adds_all_files_below_the_folder(self):
          new_folders = ('herp', 'derp', 'test')
          os.makedirs(os.path.join(self.files, *new_folders))
  
          def build_folder(folder):
              new_files = ('foo', 'bar', 'blah')
              for fn in new_files:
                  with open(os.path.join(self.files, folder, fn), 'w') as f:
                      f.write('')
          build_folder('herp')
          build_folder('herp/derp')
          build_folder('herp/derp/test')
          file_list = helpers.build_file_list([self.files], recursive=True)
          for root, dirs, files in os.walk(self.files):
              for fn in files:
                  assert os.path.join(root, fn) in file_list
  
      def test_ignoring_files(self):
          ignore = self.random_files(self.files)
          file_list = helpers.build_file_list([self.files], ignore_filelist=ignore)
          assert all(fn not in file_list for fn in ignore)
  
new_contents: import collections
  import os
  import sys
  
  from tvrenamr.cli import helpers
  
  from .utils import random_files
  
  
  def test_passing_current_dir_makes_file_list_a_list(files):
      file_list = helpers.build_file_list([files])
  
      assert isinstance(file_list, collections.Iterable)
  
      PY3 = sys.version_info[0] == 3
      string_type = str if PY3 else basestring
      text_type = str if PY3 else unicode
      assert not isinstance(file_list, (string_type, text_type))
  
  
  def test_setting_recursive_adds_all_files_below_the_folder(files):
      new_folders = ('herp', 'derp', 'test')
      os.makedirs(os.path.join(files, *new_folders))
  
      def build_folder(folder):
          new_files = ('foo', 'bar', 'blah')
          for fn in new_files:
              with open(os.path.join(files, folder, fn), 'w') as f:
                  f.write('')
      build_folder('herp')
      build_folder('herp/derp')
      build_folder('herp/derp/test')
      file_list = helpers.build_file_list([files], recursive=True)
      for root, dirs, files in os.walk(files):
          for fn in files:
              assert (root, fn) in file_list
  
  
  def test_ignoring_files(files):
      ignore = random_files(files)
      file_list = helpers.build_file_list([files], ignore_filelist=ignore)
      assert all(fn not in file_list for fn in ignore)
  
subject: Move to function only tests & fix test for generator based build_file_list