new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  import os
  import unittest
  
  from helper.read_data_file import read_int_array
  from sorting.quick_sort import sort
  
  
  BASE_DIR = os.path.dirname(os.path.abspath(__file__))
  
  
  class InsertionSortTester(unittest.TestCase):
  
      # Test sort in default order, i.e., in ascending order.
      def test_sort_default(self):
  
          array = read_int_array(os.path.join(BASE_DIR, 'data1.data'))
          array = sort(array)
          expect = [65, 76, 86, 113, 140, 417, 444, 445, 567, 589, 637, 647, 702, 864, 969]
          self.assertEqual(expect, array)
  
      # Test sort in ascending order.
      def test_sort_ascending(self):
  
          array = read_int_array(os.path.join(BASE_DIR, 'data1.data'))
          array = sort(array, 'asc')
          expect = [65, 76, 86, 113, 140, 417, 444, 445, 567, 589, 637, 647, 702, 864, 969]
          self.assertEqual(expect, array)
  
      # Test sort in descending order.
      def test_sort_descending(self):
  
          array = read_int_array(os.path.join(BASE_DIR, 'data1.data'))
          array = sort(array, 'desc')
          expect = [969, 864, 702, 647, 637, 589, 567, 445, 444, 417, 140, 113, 86, 76, 65]
          self.assertEqual(expect, array)
  
  
  if __name__ == '__main__':
  
      unittest.main()
  
subject: Add unit test for quick sort implementation.