text: from file_operations_out import  string_to_int_byte
  from run_and_compare import bytes_to_int, read_ints_from_file
  
  def create_test_binary_file(file_name, int_list):
  
      with open(file_name, 'wb') as f:
          
          for i in int_list:
  
              f.write(bytes([i]))
  
  def test_string_to_int_byte():
      assert string_to_int_byte('101', 3, 0)  == 5
      assert string_to_int_byte('1011010101011', 13, 0)  == 181
      assert string_to_int_byte('1011010101011', 13, 1)  == 11
  
  def test_bytes_to_int():
      assert bytes_to_int([5,4,1]) == 328705
  
  def test_read_ints_from_file():
  
      file_name = 'binary_file_system_example'
  
      create_test_binary_file(file_name, [4,6,18])
  
      with open(file_name, 'rb') as f:
  
          int_list = read_ints_from_file(5,3,f)
  
      assert int_list == [4,6,18]
  
      create_test_binary_file(file_name, [8 , 9 , 18 , 7])
  
      with open(file_name, 'rb') as f:
  
          int_list = read_ints_from_file(16, 2, f)
  
      assert int_list == [2057, 4615]
  