def test_game_end(self):
# Can't move
b = Board()
b._board = [
2, 4, 2, 4,
4, 2, 4, 2,
2, 4, 2, 4,
4, 2, 4, 2
]
self.assertEqual(True, b.is_terminal())
# Zero check
b._board = [
2, 4, 2, 4,
4, 2, 4, 2,
2, 4, 2, 4,
4, 2, 0, 2
]
self.assertEqual(False, b.is_terminal())
# Right or left
b._board = [
2, 4, 2, 4,
4, 2, 4, 2,
2, 4, 8, 4,
4, 2, 2, 2
]
self.assertEqual(False, b.is_terminal())
# Up or down
b._board = [
2, 4, 2, 4,
4, 2, 4, 2,
2, 4, 8, 4,
4, 2, 8, 2
]
self.assertEqual(False, b.is_terminal())
def test_combine(self):
# Individual checks of squares are needed because of the stochastic elements
b = Board()
# Right swipe
b._board = [
2, 0, 0, 2,
2, 2, 0, 0,
0, 0, 2, 2,
0, 2, 0, 2
]
b.swipe_right()
self.assertEqual(3, b._board[3])
self.assertEqual(3, b._board[7])
self.assertEqual(3, b._board[11])
self.assertEqual(3, b._board[15])
# Left swipe
b._board = [
2, 0, 0, 2,
2, 2, 0, 0,
0, 0, 2, 2,
0, 2, 0, 2
]
b.swipe_left()
self.assertEqual(3, b._board[0])
self.assertEqual(3, b._board[4])
self.assertEqual(3, b._board[8])
self.assertEqual(3, b._board[12])
# Up swipe
b._board = [
2, 0, 0, 2,
2, 2, 0, 0,
0, 0, 2, 2,
0, 2, 0, 2
]
b.swipe_up()
self.assertEqual(3, b._board[0])
self.assertEqual(3, b._board[1])
self.assertEqual(2, b._board[2])
self.assertEqual(3, b._board[3])
self.assertEqual(2, b._board[7])
# Down swipe
b._board = [
2, 0, 0, 2,
2, 2, 0, 0,
0, 0, 2, 2,
0, 2, 0, 2
]
b.swipe_down()
self.assertEqual(3, b._board[12])
self.assertEqual(3, b._board[13])
self.assertEqual(2, b._board[14])
self.assertEqual(3, b._board[15])
self.assertEqual(2, b._board[11])