text: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  """Tests for the shared library utils."""
  
  from __future__ import unicode_literals
  
  import unittest
  
  from plaso.lib import utils
  
  
  class UtilsTestCase(unittest.TestCase):
    """The unit test for utils method collection."""
  
    def testIsText(self):
      """Tests the IsText function."""
      bytes_in = b'this is My Weird ASCII and non whatever string.'
      self.assertTrue(utils.IsText(bytes_in))
  
      bytes_in = 'Plaso Síar Og Raðar Þessu'
      self.assertTrue(utils.IsText(bytes_in))
  
      bytes_in = b'\x01\\62LSO\xFF'
      self.assertFalse(utils.IsText(bytes_in))
  
      bytes_in = b'T\x00h\x00i\x00s\x00\x20\x00'
      self.assertTrue(utils.IsText(bytes_in))
  
      bytes_in = b'Ascii\x00'
      self.assertTrue(utils.IsText(bytes_in))
  
      bytes_in = b'Ascii Open then...\x00\x99\x23'
      self.assertFalse(utils.IsText(bytes_in))
  
  
  if __name__ == '__main__':
    unittest.main()
  