def test_move_down_when_value_has_to_move_all_the_way_down(self):
g = TwoThousandFortyEight(
board=[[0, 0, 0, 4], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]])
self.assertEqual(
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 4]],
g.move_down())
def test_move_down_when_has_two_different_merges_then_merged(self):
g = TwoThousandFortyEight(
board=[[0, 0, 0, 4], [0, 0, 0, 4], [0, 0, 0, 2], [0, 0, 0, 2]])
self.assertEqual(
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 8], [0, 0, 0, 4]],
g.move_down())
def test_move_down_when_has_one_value_and_not_possible_then_error_raised(
self):
g = TwoThousandFortyEight(
board=[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 2]])
with self.assertRaises(ValueError):
g.move_down()
def test_move_down_when_has_merge_and_shouldnt_merge_then_one_merged(self):
g = TwoThousandFortyEight(
board=[[0, 0, 0, 4], [0, 0, 0, 2], [0, 0, 0, 2], [0, 0, 0, 0]])
self.assertEqual(
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 4], [0, 0, 0, 4]],
g.move_down())
def test_move_down_when_has_merge_but_not_together_then_merged(self):
g = TwoThousandFortyEight(
board=[[0, 0, 0, 2], [0, 0, 0, 0], [0, 0, 0, 2], [0, 0, 0, 0]])
self.assertEqual(
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 4]],
g.move_down())
def test_move_down_when_right_row_populated_and_not_possible_then_error_raised(
self):
g = TwoThousandFortyEight(
board=[[0, 0, 0, 4], [0, 0, 0, 2], [0, 0, 0, 4], [0, 0, 0, 2]])
with self.assertRaises(ValueError):
g.move_down()
