def test_one_quicksort(self):
     self.assertEqual(["a"], quicksort(["a"]))
 def test_string_quicksort(self):
     self.assertEqual(self.list_string_sorted, quicksort(self.list_string))
 def test_empty_quicksort(self):
     self.assertEqual([], quicksort([]))
 def test_url_quicksort(self):
     self.assertEqual(self.list_url_sorted, quicksort(self.list_url))
 def test_char_quicksort(self):
     self.assertEqual(self.list_char_sorted, quicksort(self.list_char))
 def test_one_quicksort(self):
     self.assertEqual(['a'], quicksort(['a']))
 def test_ascii_quicksort(self):
     self.assertEqual(self.list_ascii_sorted, quicksort(self.list_ascii))
 def test_empty_quicksort(self):
     self.assertEqual([], quicksort([]))
 def test_string_quicksort(self):
     self.assertEqual(self.list_string_sorted, quicksort(self.list_string))
 def test_char_quicksort(self):
     self.assertEqual(self.list_char_sorted, quicksort(self.list_char))
 def test_url_quicksort(self):
     self.assertEqual(self.list_url_sorted, quicksort(self.list_url))
 def test_ascii_quicksort(self):
     self.assertEqual(self.list_ascii_sorted, quicksort(self.list_ascii))