def test_one_mergesort(self):
     self.assertEqual(["a"], mergesort(["a"]))
 def test_string_mergesort(self):
     self.assertEqual(self.list_string_sorted, mergesort(self.list_string))
 def test_empty_mergesort(self):
     self.assertEqual([], mergesort([]))
 def test_url_mergesort(self):
     self.assertEqual(self.list_url_sorted, mergesort(self.list_url))
 def test_char_mergesort(self):
     self.assertEqual(self.list_char_sorted, mergesort(self.list_char))
 def test_one_mergesort(self):
     self.assertEqual(['a'], mergesort(['a']))
 def test_ascii_mergesort(self):
     self.assertEqual(self.list_ascii_sorted, mergesort(self.list_ascii))
 def test_empty_mergesort(self):
     self.assertEqual([], mergesort([]))
 def test_string_mergesort(self):
     self.assertEqual(self.list_string_sorted, mergesort(self.list_string))
 def test_char_mergesort(self):
     self.assertEqual(self.list_char_sorted, mergesort(self.list_char))
 def test_url_mergesort(self):
     self.assertEqual(self.list_url_sorted, mergesort(self.list_url))
 def test_ascii_mergesort(self):
     self.assertEqual(self.list_ascii_sorted, mergesort(self.list_ascii))