def test_clear_pieces_after_creations_empties_pieces():
""" Tests clear_pieces. """
board = Board(create_random_maze())
for _ in range(8):
board.create_piece()
assert len(board.pieces) == 8
board.clear_pieces()
assert not board.pieces
def test_computer_player_random_algorith_when_piece_is_pushed_out(post_move, post_shift, time_sleep):
""" Tests case where piece is positioned on a shift location, so that it is pushed out.
Runs computation 100 times. Push-out expectation rate is 1/12.
Probability that no push-out takes place in 100 runs is negligible
.start() is patched so that the compute method runs sequentially.
This test recreates a bug, where the pushed-out piece is not updated correctly, leading
to exceptions thrown when computer makes a move.
"""
card_factory = MazeCardFactory()
board = Board(create_maze(MAZE_STRING, card_factory), leftover_card=card_factory.create_instance("NE", 0))
piece = board.create_piece()
piece.maze_card = board.maze[BoardLocation(3, 6)]
game = Mock()
game.get_enabled_shift_locations.return_value = board.shift_locations
game.board = board
computer_player = ComputerPlayer(library_binding_factory=Mock(), move_url="move-url", shift_url="shift-url",
game=game, identifier=9, board=board, piece=piece)
for _ in range(100):
shift_action, move_location = computer_player.random_actions()
shift_location, _ = shift_action
allowed_coordinates = [(3, 6)]
if shift_location == BoardLocation(3, 6):
allowed_coordinates = [(3, 5)]
elif shift_location == BoardLocation(3, 0):
allowed_coordinates = [(3, 0)]
allowed_moves = {BoardLocation(*coordinates) for coordinates in allowed_coordinates}
assert move_location in allowed_moves
def test_shift_updates_pieces_on_pushed_out_card():
""" Tests shift """
board = Board()
piece = board.create_piece()
pushed_card = board.leftover_card
piece.maze_card = board.maze[BoardLocation(0, 3)]
board.shift(BoardLocation(board.maze.maze_size - 1, 3), 90)
assert piece.maze_card == pushed_card
def test_create_piece_assigns_pieces_consecutive_unique_indices():
""" Tests create_piece. Adds four pieces, removes first two, adds one, removes third, adds two,
and checks that all pieces have consecutive unique index """
board = Board(create_random_maze())
pieces = [
board.create_piece(),
board.create_piece(),
board.create_piece(),
board.create_piece()
]
board.remove_piece(pieces[0])
board.remove_piece(pieces[1])
pieces[0] = board.create_piece()
board.remove_piece(pieces[3])
pieces[1] = board.create_piece()
pieces[3] = board.create_piece()
assert set([0, 1, 2,
3]) == set(map(lambda piece: piece.piece_index, pieces))
def test_move_raises_error_on_unreachable_location():
""" Tests move validation """
maze_card_factory = MazeCardFactory()
board = Board(maze=create_maze(MAZE_STRING, maze_card_factory),
leftover_card=maze_card_factory.create_random_maze_card())
piece = board.create_piece()
piece.maze_card = board.maze[BoardLocation(0, 1)]
with pytest.raises(MoveUnreachableException):
board.move(piece, BoardLocation(0, 0))
def test_move_new_objective_locations_after_reaching_location():
""" Tests new objective generation after reaching one """
maze_card_factory = MazeCardFactory()
maze = create_maze(MAZE_STRING, maze_card_factory)
objective_maze_card = maze[BoardLocation(1, 6)]
board = Board(maze=maze,
leftover_card=maze_card_factory.create_random_maze_card(),
objective_maze_card=objective_maze_card)
piece = board.create_piece()
piece.maze_card = maze[BoardLocation(0, 6)]
board.move(piece, BoardLocation(1, 6))
_assert_all_piece_and_objective_location_different(board)
def test_move_updates_players_maze_card_correctly():
""" Tests move
Instead of calling init_board(), the board is built manually, and
the player's position is set manually as well, so that
randomness is eliminated for testing """
maze_card_factory = MazeCardFactory()
board = Board(maze=create_maze(MAZE_STRING, maze_card_factory),
leftover_card=maze_card_factory.create_random_maze_card())
piece = board.create_piece()
piece.maze_card = board.maze[BoardLocation(0, 1)]
board.move(piece, BoardLocation(0, 2))
assert board.maze[BoardLocation(0, 2)] == piece.maze_card
def test_create_piece_sets_all_pieces_on_corners():
""" Tests create_piece """
board = Board(create_random_maze())
def is_corner(location):
return (location.row in [
0, board.maze.maze_size - 1
]) and (location.column in [0, board.maze.maze_size - 1])
for _ in range(8):
piece = board.create_piece()
piece_location = board.maze.maze_card_location(piece.maze_card)
assert is_corner(piece_location)
def test_after_series_of_creates_and_removes_no_corners_empty():
""" Tests create_piece. Adds three pieces, removes two, adds three,
and checks that all pieces are on a different corner """
board = Board(create_random_maze())
piece1 = board.create_piece()
piece2 = board.create_piece()
board.create_piece()
board.remove_piece(piece1)
board.remove_piece(piece2)
board.create_piece()
board.create_piece()
board.create_piece()
assert len(board.pieces) == 4
piece_cards = {piece.maze_card for piece in board.pieces}
assert len(piece_cards) == 4
def test_computer_player_calls_start_on_compute_method(post_move, post_shift, time_sleep):
""" Tests that the computer player calls start() one its computation method.
"""
card_factory = MazeCardFactory()
board = Board(create_maze(MAZE_STRING, card_factory), leftover_card=card_factory.create_instance("NE", 0))
piece = board.create_piece()
game = Mock()
type(game).identifier = PropertyMock(return_value=7)
game.get_enabled_shift_locations.return_value = board.shift_locations
mock_method = Mock()
mock_method.start = Mock()
mock_method.shift_action = BoardLocation(0, 1), 90
mock_method.move_action = board.maze.maze_card_location(piece.maze_card)
mock_method_factory = Mock()
mock_method_factory.return_value = mock_method
player = ComputerPlayer(library_binding_factory=mock_method_factory, move_url="move-url", shift_url="shift-url",
game=game, identifier=9, board=board, piece=piece)
player.run()
mock_method.start.assert_called_once()
post_shift.assert_called_once()
post_move.assert_called_once()
def test_remove_piece_after_create_piece():
""" Tests remove_piece """
board = Board(create_random_maze())
piece = board.create_piece()
board.remove_piece(piece)
assert not board.pieces
def test_move_raises_error_on_invalid_location():
""" Tests move validation """
board = Board()
piece = board.create_piece()
with pytest.raises(InvalidLocationException):
board.move(piece, BoardLocation(-1, -1))
