def test_3x3(self):
snail = Snail(3, 3)
self.assertEqual(snail.get_way(), [(2, 1), (0, 1), (0, 2), (1, 2),
(2, 2), (2, 1), (2, 0), (1, 0),
(1, 1)])
def test_4x1(self):
snail = Snail(4, 2)
self.assertEqual(snail.get_way(), [(0, 0), (0, 1), (1, 1), (2, 1),
(3, 1), (3, 0), (2, 0), (1, 0)])
