old_contents: import sys, os
  
  from source.utils.utils import clean_text
  import pytest
  
  
  @pytest.mark.parametrize('txt, exp_result', [ 
  	('\r vahid \r \t\t\t\\t    sanei was an intern at \n Google\t\t', 'vahid sanei was an intern at Google'),
  	('\t\t\t Thanks YY and Xiang for helping \r                  me during this         internship! \t \n \r', 'Thanks YY and Xiang for helping me during this internship!')
  ])
  def test_clean_text(txt, exp_result):
      assert clean_text(txt) == exp_result
      
     
  
  
new_contents: import sys, os
  
  sys.path.append(os.getcwd() + '/..')
  
  from source.utils.utils import clean_text
  import pytest
  
  
  @pytest.mark.parametrize('txt, exp_result', [ 
  	('\r vahid \r \t\t\t\\t    sanei was an intern at \n Google\t\t', 'vahid sanei was an intern at Google'),
  	('\t\t\t Thanks YY and Xiang for helping \r                  me during this         internship! \t \n \r', 'Thanks YY and Xiang for helping me during this internship!')
  ])
  def test_clean_text(txt, exp_result):
      assert clean_text(txt) == exp_result
      
     
  
  
subject: Update test_utils.py