class TestBoard(unittest.TestCase):
def setUp(self):
self.b = Board()
# == init == #
def test_init_dimensions(self):
self.assertEqual(len(self.b.cells), Board.SIZE)
self.assertEqual(len(self.b.cells[0]), Board.SIZE)
if Board.SIZE > 1:
self.assertEqual(len(self.b.cells[1]), Board.SIZE)
def test_init_dimensions_1(self):
b = Board(size=1)
c = b.cells[0][0]
self.assertTrue(c in [2, 4])
def test_init_dimensions_3_goal_4(self):
b = Board(size=3, goal=4)
self.assertEqual(b.size(), 3)
def test_init_only_two_tiles(self):
t = 0
for x in xrange(Board.SIZE):
for y in xrange(Board.SIZE):
c = self.b.cells[y][x]
if not c == 0:
t += 1
else:
self.assertEqual(c, 0, 'board[%d][%d] should be 0' % (y, x))
self.assertEqual(t, 2)
def test_init_not_won(self):
self.assertFalse(self.b.won())
def test_init_not_filled(self):
self.assertFalse(self.b.filled())
# == .size == #
def test_size(self):
s = 42
b = Board(size=s)
self.assertEqual(b.size(), s)
# == .won == #
def test_won(self):
self.b._Board__won = True
self.assertTrue(self.b.won())
self.b._Board__won = False
self.assertFalse(self.b.won())
# == .canMove == #
def test_canMove_no_empty_cell(self):
b = Board(size=1)
b.setCell(0, 0, 42)
self.assertFalse(b.canMove())
def test_canMove_empty_cell(self):
b = Board(size=2)
self.assertTrue(b.canMove())
def test_canMove_no_empty_cell_can_collapse(self):
b = Board(size=2)
b.cells = [
[2, 2],
[4, 8]
]
self.assertTrue(b.canMove())
# == .filled == #
def test_filled(self):
self.b.cells = [[1]*Board.SIZE for _ in xrange(Board.SIZE)]
self.assertTrue(self.b.filled())
# == .addTile == #
def test_addTile(self):
b = Board(size=1)
b.cells = [[0]]
b.addTile(value=42)
self.assertEqual(b.cells[0][0], 42)
# == .getCell == #
def test_getCell(self):
x, y = 3, 1
v = 42
self.b.cells[y][x] = v
self.assertEqual(self.b.getCell(x, y), v)
# == .setCell == #
def test_setCell(self):
x, y = 2, 3
v = 42
self.b.setCell(x, y, v)
self.assertEqual(self.b.cells[y][x], v)
# == .getLine == #
def test_getLine(self):
b = Board(size=4)
l = [42, 17, 12, 3]
b.cells = [
[0]*4,
l,
[0]*4,
[0]*4
]
self.assertSequenceEqual(b.getLine(1), l)
# == .getCol == #
def test_getCol(self):
s = 4
b = Board(size=s)
l = [42, 17, 12, 3]
b.cells = [[l[i], 4, 1, 2] for i in xrange(s)]
self.assertSequenceEqual(b.getCol(0), l)
# == .setLine == #
def test_setLine(self):
i = 2
l = [1, 2, 3, 4]
self.b.setLine(i, l)
self.assertEqual(self.b.getLine(i), l)
# == .setCol == #
def test_setLine(self):
i = 2
l = [1, 2, 3, 4]
self.b.setCol(i, l)
self.assertEqual(self.b.getCol(i), l)
# == .getEmptyCells == #
def test_getEmptyCells(self):
self.assertEqual(len(self.b.getEmptyCells()), Board.SIZE**2 - 2)
def test_getEmptyCells_filled(self):
b = Board(size=1)
b.setCell(0, 0, 42)
self.assertSequenceEqual(b.getEmptyCells(), [])
# == .move == #
def test_move_filled(self):
b = Board(size=1)
b.setCell(0, 0, 42)
b.move(Board.UP)
self.assertSequenceEqual(b.cells, [[42]])
b.move(Board.LEFT)
self.assertSequenceEqual(b.cells, [[42]])
b.move(Board.RIGHT)
self.assertSequenceEqual(b.cells, [[42]])
b.move(Board.DOWN)
self.assertSequenceEqual(b.cells, [[42]])
def test_move_add_tile_if_collapse(self):
b = Board(size=2)
b.cells = [[2, 0],
[2, 0]]
b.move(Board.UP)
self.assertEqual(len([e for l in b.cells for e in l if e != 0]), 2)
def test_move_add_tile_if_move(self):
b = Board(size=2)
b.cells = [[0, 0],
[2, 0]]
b.move(Board.UP)
self.assertEqual(len([e for l in b.cells for e in l if e != 0]), 2)
def test_move_dont_add_tile_if_nothing_move(self):
b = Board(size=2)
b.cells = [[2, 0],
[0, 0]]
b.move(Board.UP)
self.assertEqual(len([e for l in b.cells for e in l if e != 0]), 1)
# test for issue #1
def test_move_dont_add_tile_if_nothing_move2(self):
b = Board()
b.cells = [
[8, 4, 4, 2],
[0, 2, 2, 0],
[0]*4,
[0]*4
]
self.assertEqual(b.move(Board.UP), 0)
self.assertEqual(len([e for l in b.cells for e in l if e != 0]), 6)
self.assertEqual(b.getLine(0), [8, 4, 4, 2])
self.assertEqual(b.getLine(1), [0, 2, 2, 0])
def test_move_collapse(self):
b = Board(size=2)
b.cells = [
[2, 2],
[0, 0]
]
b.move(Board.LEFT, add_tile=False)
self.assertSequenceEqual(b.cells, [
[4, 0],
[0, 0]
])
def test_move_collapse_triplet1(self):
b = Board(size=3)
b.setLine(0, [2, 2, 2])
b.move(Board.LEFT, add_tile=False)
self.assertSequenceEqual(b.getLine(0), [4, 2, 0])
def test_move_collapse_triplet2(self):
b = Board(size=3)
b.setLine(0, [2, 2, 2])
b.move(Board.RIGHT, add_tile=False)
self.assertSequenceEqual(b.getLine(0), [0, 2, 4])
def test_move_collapse_with_empty_cell_in_between(self):
b = Board(size=3)
b.setLine(0, [2, 0, 2])
b.move(Board.RIGHT, add_tile=False)
self.assertSequenceEqual(b.getLine(0), [0, 0, 4])
def test_move_collapse_with_empty_cell_in_between2(self):
b = Board(size=3)
b.setLine(0, [2, 0, 2])
b.move(Board.LEFT, add_tile=False)
self.assertSequenceEqual(b.getLine(0), [4, 0, 0])
def test_move_collapse_and_win(self):
b = Board(size=2, goal=4)
b.cells = [
[2, 2],
[0, 0]
]
b.move(Board.LEFT, add_tile=False)
self.assertTrue(b.won())
def test_move_wrong_direction(self):
self.assertEqual(self.b.move(42, add_tile=False), 0)
self.assertEqual(self.b.move(None), 0)
self.assertEqual(self.b.move("up"), 0)
def test_move_collapse_chain_col(self):
# from https://news.ycombinator.com/item?id=7398249
b = Board()
b.setCol(0, [0, 2, 2, 4])
b.move(Board.DOWN, add_tile=False)
self.assertSequenceEqual(b.getCol(0), [0, 0, 4, 4])
def test_move_collapse_chain_line(self):
# from https://news.ycombinator.com/item?id=7398249
b = Board()
b.cells = [
[0, 2, 2, 4],
[0]*4,
[0]*4,
[0]*4
]
self.assertEqual(b.move(Board.RIGHT, add_tile=False), 4)
self.assertSequenceEqual(b.getLine(0), [0, 0, 4, 4])
def test_getEmptyCells_filled(self):
b = Board(size=1)
b.setCell(0, 0, 42)
self.assertSequenceEqual(b.getEmptyCells(), [])
def test_getEmptyCells_filled(self):
b = Board(size=1)
b.setCell(0, 0, 42)
self.assertSequenceEqual(b.getEmptyCells(), [])
class TestBoard(unittest.TestCase):
def setUp(self):
self.b = Board()
# == init == #
def test_init_dimensions(self):
self.assertEqual(len(self.b.cells), Board.SIZE)
self.assertEqual(len(self.b.cells[0]), Board.SIZE)
if Board.SIZE > 1:
self.assertEqual(len(self.b.cells[1]), Board.SIZE)
def test_init_dimensions_1(self):
b = Board(size=1)
c = b.cells[0][0]
self.assertTrue(c in [2, 4])
def test_init_dimensions_3_goal_4(self):
b = Board(size=3, goal=4)
self.assertEqual(b.size(), 3)
def test_init_only_two_tiles(self):
t = 0
for x in xrange(Board.SIZE):
for y in xrange(Board.SIZE):
c = self.b.cells[y][x]
if not c == 0:
t += 1
else:
self.assertEqual(c, 0, 'board[%d][%d] should be 0' % (y, x))
self.assertEqual(t, 2)
def test_init_not_won(self):
self.assertFalse(self.b.won())
def test_init_not_filled(self):
self.assertFalse(self.b.filled())
# == .size == #
def test_size(self):
s = 42
b = Board(size=s)
self.assertEqual(b.size(), s)
# == .goal == #
def test_goal(self):
g = 17
b = Board(goal=g)
self.assertEqual(b.goal(), g)
# == .won == #
def test_won(self):
self.b._Board__won = True
self.assertTrue(self.b.won())
self.b._Board__won = False
self.assertFalse(self.b.won())
# == .canMove == #
def test_canMove_no_empty_cell(self):
b = Board(size=1)
b.setCell(0, 0, 42)
self.assertFalse(b.canMove())
def test_canMove_empty_cell(self):
b = Board(size=2)
self.assertTrue(b.canMove())
def test_canMove_no_empty_cell_can_collapse(self):
b = Board(size=2)
b.cells = [
[2, 2],
[4, 8]
]
self.assertTrue(b.canMove())
# == .filled == #
def test_filled(self):
self.b.cells = [[1]*Board.SIZE for _ in xrange(Board.SIZE)]
self.assertTrue(self.b.filled())
# == .addTile == #
def test_addTile(self):
b = Board(size=1)
b.cells = [[0]]
b.addTile(value=42)
self.assertEqual(b.cells[0][0], 42)
# == .getCell == #
def test_getCell(self):
x, y = 3, 1
v = 42
self.b.cells[y][x] = v
self.assertEqual(self.b.getCell(x, y), v)
# == .setCell == #
def test_setCell(self):
x, y = 2, 3
v = 42
self.b.setCell(x, y, v)
self.assertEqual(self.b.cells[y][x], v)
# == .getLine == #
def test_getLine(self):
b = Board(size=4)
l = [42, 17, 12, 3]
b.cells = [
[0]*4,
l,
[0]*4,
[0]*4
]
self.assertSequenceEqual(b.getLine(1), l)
# == .getCol == #
def test_getCol(self):
s = 4
b = Board(size=s)
l = [42, 17, 12, 3]
b.cells = [[l[i], 4, 1, 2] for i in xrange(s)]
self.assertSequenceEqual(b.getCol(0), l)
# == .setLine == #
def test_setLine(self):
i = 2
l = [1, 2, 3, 4]
self.b.setLine(i, l)
self.assertEqual(self.b.getLine(i), l)
# == .setCol == #
def test_setCol(self):
i = 2
l = [1, 2, 3, 4]
self.b.setCol(i, l)
self.assertEqual(self.b.getCol(i), l)
# == .getEmptyCells == #
def test_getEmptyCells(self):
self.assertEqual(len(self.b.getEmptyCells()), Board.SIZE**2 - 2)
def test_getEmptyCells_filled(self):
b = Board(size=1)
b.setCell(0, 0, 42)
self.assertSequenceEqual(b.getEmptyCells(), [])
# == .move == #
def test_move_filled(self):
b = Board(size=1)
b.setCell(0, 0, 42)
b.move(Board.UP)
self.assertSequenceEqual(b.cells, [[42]])
b.move(Board.LEFT)
self.assertSequenceEqual(b.cells, [[42]])
b.move(Board.RIGHT)
self.assertSequenceEqual(b.cells, [[42]])
b.move(Board.DOWN)
self.assertSequenceEqual(b.cells, [[42]])
def test_move_add_tile_if_collapse(self):
b = Board(size=2)
b.cells = [[2, 0],
[2, 0]]
b.move(Board.UP)
self.assertEqual(len([e for l in b.cells for e in l if e != 0]), 2)
def test_move_add_tile_if_move(self):
b = Board(size=2)
b.cells = [[0, 0],
[2, 0]]
b.move(Board.UP)
self.assertEqual(len([e for l in b.cells for e in l if e != 0]), 2)
def test_move_dont_add_tile_if_nothing_move(self):
b = Board(size=2)
b.cells = [[2, 0],
[0, 0]]
b.move(Board.UP)
self.assertEqual(len([e for l in b.cells for e in l if e != 0]), 1)
# test for issue #1
def test_move_dont_add_tile_if_nothing_move2(self):
b = Board()
b.cells = [
[8, 4, 4, 2],
[0, 2, 2, 0],
[0]*4,
[0]*4
]
self.assertEqual(b.move(Board.UP), 0)
self.assertEqual(len([e for l in b.cells for e in l if e != 0]), 6)
self.assertEqual(b.getLine(0), [8, 4, 4, 2])
self.assertEqual(b.getLine(1), [0, 2, 2, 0])
def test_move_collapse(self):
b = Board(size=2)
b.cells = [
[2, 2],
[0, 0]
]
b.move(Board.LEFT, add_tile=False)
self.assertSequenceEqual(b.cells, [
[4, 0],
[0, 0]
])
def test_move_collapse_triplet1(self):
b = Board(size=3)
b.setLine(0, [2, 2, 2])
b.move(Board.LEFT, add_tile=False)
self.assertSequenceEqual(b.getLine(0), [4, 2, 0])
def test_move_collapse_triplet2(self):
b = Board(size=3)
b.setLine(0, [2, 2, 2])
b.move(Board.RIGHT, add_tile=False)
self.assertSequenceEqual(b.getLine(0), [0, 2, 4])
def test_move_collapse_with_empty_cell_in_between(self):
b = Board(size=3)
b.setLine(0, [2, 0, 2])
b.move(Board.RIGHT, add_tile=False)
self.assertSequenceEqual(b.getLine(0), [0, 0, 4])
def test_move_collapse_with_empty_cell_in_between2(self):
b = Board(size=3)
b.setLine(0, [2, 0, 2])
b.move(Board.LEFT, add_tile=False)
self.assertSequenceEqual(b.getLine(0), [4, 0, 0])
def test_move_collapse_and_win(self):
b = Board(size=2, goal=4)
b.cells = [
[2, 2],
[0, 0]
]
b.move(Board.LEFT, add_tile=False)
self.assertTrue(b.won())
def test_move_wrong_direction(self):
self.assertEqual(self.b.move(42, add_tile=False), 0)
self.assertEqual(self.b.move(None), 0)
self.assertEqual(self.b.move("up"), 0)
# tests for weird-collapse-bug reported on HN (issue #2)
# see: https://news.ycombinator.com/item?id=7398249
def test_move_collapse_chain_col(self):
b = Board()
b.setCol(0, [0, 2, 2, 4])
b.move(Board.DOWN, add_tile=False)
self.assertSequenceEqual(b.getCol(0), [0, 0, 4, 4])
def test_move_collapse_chain_line_right(self):
b = Board()
b.cells = [
[0, 2, 2, 4],
[0]*4,
[0]*4,
[0]*4
]
self.assertEqual(b.move(Board.RIGHT, add_tile=False), 4)
self.assertSequenceEqual(b.getLine(0), [0, 0, 4, 4])
def test_move_collapse_chain_line_right2(self):
b = Board()
b.cells = [
[0, 4, 2, 2],
[0]*4,
[0]*4,
[0]*4
]
self.assertEqual(b.move(Board.RIGHT, add_tile=False), 4)
self.assertSequenceEqual(b.getLine(0), [0, 0, 4, 4])
def test_move_collapse_chain_line_left(self):
b = Board()
b.cells = [
[0, 2, 2, 4],
[0]*4,
[0]*4,
[0]*4
]
self.assertEqual(b.move(Board.LEFT, add_tile=False), 4)
self.assertSequenceEqual(b.getLine(0), [4, 4, 0, 0])
def test_move_collapse_chain_four_same_tiles(self):
b = Board()
b.cells = [
[2, 2, 2, 2],
[0]*4,
[0]*4,
[0]*4
]
self.assertEqual(b.move(Board.LEFT, add_tile=False), 8)
self.assertSequenceEqual(b.getLine(0), [4, 4, 0, 0])
