def test_valid_grid(self):
grid = (
(5, 3, 4, 6, 7, 8, 9, 1, 2),
(6, 7, 2, 1, 9, 5, 3, 4, 8),
(1, 9, 8, 3, 4, 2, 5, 6, 7),
(8, 5, 9, 7, 6, 1, 4, 2, 3),
(4, 2, 6, 8, 5, 3, 7, 9, 1),
(7, 1, 3, 9, 2, 4, 8, 5, 6),
(9, 6, 1, 5, 3, 7, 2, 8, 4),
(2, 8, 7, 4, 1, 9, 6, 3, 5),
(3, 4, 5, 2, 8, 6, 1, 7, 9)
)
# assertTrue cannot be used as it test bool(x) == True
# which is not what we want to test.
self.assertEqual(valid_solution(grid), True)
def test_invalid_grid(self):
grid = (
(5, 3, 4, 6, 7, 8, 9, 1, 2),
(6, 7, 2, 1, 9, 0, 3, 4, 8),
(1, 0, 0, 3, 4, 2, 5, 6, 0),
(8, 5, 9, 7, 6, 1, 0, 2, 0),
(4, 2, 6, 8, 5, 3, 7, 9, 1),
(7, 1, 3, 9, 2, 4, 8, 5, 6),
(9, 0, 1, 5, 3, 7, 2, 1, 4),
(2, 8, 7, 4, 1, 9, 6, 3, 5),
(3, 0, 0, 4, 8, 1, 1, 7, 9)
)
# assertFalse cannot be used as it test bool(x) == False
# which is not what we want to test.
self.assertEqual(valid_solution(grid), False)
