def test_pair(self):
self.assertEqual(list(pair([1, 2, 3, 4, 5, 6])), [(1, 2), (3, 4),
(5, 6)])
self.assertEqual(list(pair([1, 2, 3, 4, 5, 6, 7])), [(1, 2), (3, 4),
(5, 6),
(7, None)])
def test_pair(self):
self.assertEqual(
list(pair([1, 2, 3, 4, 5, 6])),
[(1, 2), (3, 4), (5, 6)]
)
self.assertEqual(
list(pair([1, 2, 3, 4, 5, 6, 7])),
[(1, 2), (3, 4), (5, 6), (7, None)]
)