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_opposing_border_location_for_south_location():
""" Tests opposing_border_location """
board = Board()
size = board.maze.maze_size
assert board.opposing_border_location(BoardLocation(size - 1,
3)) == BoardLocation(
0, 3)
def test_opposing_border_location_for_west_location():
""" Tests opposing_border_location """
board = Board()
size = board.maze.maze_size
assert board.opposing_border_location(BoardLocation(1,
0)) == BoardLocation(
1, size - 1)
def dto_to_game(game_dto):
""" maps a DTO to a game
to deserialize a persisted instance.
:param game_dto: a dictionary representing the structure of the game,
created by game_to_dto
:return: a Game instance whose state is equal to the DTO
"""
maze, leftover_card, maze_card_by_id = _dto_to_maze_cards_and_dictionary(
game_dto[MAZE])
objective_maze_card = maze_card_by_id[game_dto[OBJECTIVE]]
board = Board(maze, leftover_card, objective_maze_card=objective_maze_card)
players = [
_dto_to_player(player_dto, board, maze_card_by_id)
for player_dto in game_dto[PLAYERS]
]
board._pieces = [player.piece for player in players]
turns_prepare_delay = _dto_to_timedelta(game_dto[TURN_PREPARE_DELAY])
turns = _dto_to_turns(game_dto[NEXT_ACTION],
players=players,
prepare_delay=turns_prepare_delay)
identifier = game_dto[ID]
game = Game(identifier, board=board, players=players, turns=turns)
for player in players:
player.set_game(game)
game.previous_shift_location = _dto_to_board_location(
game_dto[PREVIOUS_SHIFT_LOCATION])
return game
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_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_random_actions_computes_valid_actions():
""" Runs computation 100 times and expects that it returns valid actions in each run """
card_factory = MazeCardFactory()
orig_board = Board(create_maze(MAZE_STRING, card_factory), leftover_card=card_factory.create_instance("NE", 0))
for _ in range(100):
board = copy.deepcopy(orig_board)
maze = board.maze
piece = board.create_piece()
piece.maze_card = maze[BoardLocation(0, 0)]
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)
shift_action, move_location = computer_player.random_actions()
shift_location, shift_rotation = shift_action
assert shift_rotation in [0, 90, 180, 270]
assert shift_location in board.shift_locations
allowed_coordinates = [(0, 0)]
if shift_location == BoardLocation(0, 1) and shift_rotation == 270:
allowed_coordinates += [(0, 1)]
elif shift_location == BoardLocation(0, 1) and shift_rotation == 180:
allowed_coordinates += [(0, 1), (1, 1)]
elif shift_location == BoardLocation(1, 0) and shift_rotation == 270:
allowed_coordinates += [(1, 0)]
elif shift_location == BoardLocation(1, 0) and shift_rotation == 0:
allowed_coordinates += [(1, 0), (1, 1), (1, 2), (2, 1), (2, 2), (3, 1), (3, 2)]
elif shift_location == BoardLocation(6, 1):
allowed_coordinates += [(0, 1), (0, 2), (1, 1), (2, 1)]
allowed_moves = {
BoardLocation(*coordinates) for coordinates in allowed_coordinates
}
assert move_location in allowed_moves
def create_board_and_pieces(maze,
leftover_card,
piece_locations,
objective_location=None,
objective_maze_card=None):
maze = copy.deepcopy(maze)
if not objective_maze_card:
objective_maze_card = maze[objective_location]
board = Board(maze=maze,
leftover_card=leftover_card,
objective_maze_card=objective_maze_card)
board.clear_pieces()
for index, location in enumerate(piece_locations):
piece = Piece(index, board.maze[location])
board.pieces.append(piece)
return board
def test_get_enabled_shift_locations_with_previous_shift():
""" Tests get_enabled_shift_locations where the previous shift is (3, 0) """
board = Board()
game = Game(identifier=0, board=board)
game.previous_shift_location = BoardLocation(3, 0)
expected_disabled = BoardLocation(3, board.maze.maze_size - 1)
enabled_shift_locations = game.get_enabled_shift_locations()
assert expected_disabled not in enabled_shift_locations
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_add_player_start_game_calls_methods_on_turns():
""" Tests add_player, start_game and Player """
board = Board()
turns = Mock()
game = Game(identifier=0, board=board, turns=turns)
for _ in range(4):
player_id = game.unused_player_id()
game.add_player(Player(player_id))
game.start_game()
expected_turn_calls = [call.init(game.players)] + [call.start()]
assert turns.mock_calls[-2:] == expected_turn_calls
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_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 _create_test_game(with_computer=False):
""" Creates a Game instance by hand """
card_factory = MazeCardFactory()
board = Board(leftover_card=MazeCard(0, MazeCard.T_JUNCT, 0))
for row in range(board.maze.maze_size):
for column in range(board.maze.maze_size):
if row == 0 and column == 0:
board.maze[BoardLocation(
row, column)] = card_factory.create_instance(
MazeCard.STRAIGHT, 0)
elif row == 1 and column == 1:
board.maze[BoardLocation(
row, column)] = card_factory.create_instance(
MazeCard.CORNER, 0)
elif row == 2 and column == 2:
board.maze[BoardLocation(
row, column)] = card_factory.create_instance(
MazeCard.T_JUNCT, 270)
else:
board.maze[BoardLocation(
row, column)] = card_factory.create_instance(
MazeCard.T_JUNCT, 0)
player_ids = [3, 4]
players = [
Player(identifier=player_id, game=None) for player_id in player_ids
]
if with_computer:
player_ids.append(42)
players.append(
create_computer_player(player_id=42,
compute_method="dynamic-foo",
shift_url="shift-url",
move_url="move-url"))
for player in players:
player.set_board(board)
players[0].piece.maze_card = board.maze[BoardLocation(3, 3)]
players[1].piece.maze_card = board.maze[BoardLocation(5, 5)]
players[0].piece.piece_index = 1
players[1].piece.piece_index = 0
players[0].score = 7
players[1].score = 8
board._objective_maze_card = board.maze[BoardLocation(1, 4)]
turns = Turns(players,
next_action=PlayerAction(players[1],
PlayerAction.MOVE_ACTION))
game = Game(identifier=7, turns=turns, board=board, players=players)
for player in players:
player._game = game
game.previous_shift_location = BoardLocation(0, 3)
return game, player_ids
def test_random_actions_should_respect_no_pushback_rule():
""" Runs computation 50 times and checks that none of the computed shifts reverts the previous shift action """
card_factory = MazeCardFactory()
orig_board = Board(create_maze(MAZE_STRING, card_factory), leftover_card=card_factory.create_instance("NE", 0))
for _ in range(50):
board = copy.deepcopy(orig_board)
maze = board.maze
piece = board.create_piece()
piece.maze_card = maze[BoardLocation(0, 0)]
game = Game(0, board=orig_board)
game.previous_shift_location = BoardLocation(0, 3)
computer_player = ComputerPlayer(library_binding_factory=Mock(), move_url="move-url", shift_url="shift-url",
game=game, identifier=9, board=board, piece=piece)
shift_action, _ = computer_player.random_actions()
shift_location, _ = shift_action
assert shift_location != BoardLocation(6, 3)
def test_add_player_start_game_calls_methods_on_board():
""" Tests add_player, start_game and Player """
board = Board()
turns = Mock()
game = Game(identifier=0, board=board, turns=turns)
with patch.object(board, 'create_piece',
wraps=board.create_piece) as board_create_piece:
for _ in range(4):
player_id = game.unused_player_id()
game.add_player(Player(player_id))
game.start_game()
expected_board_calls = [
call.create_piece(),
call.create_piece(),
call.create_piece(),
call.create_piece()
]
assert board_create_piece.mock_calls == expected_board_calls
def test_shift_updates_old_leftover_rotation():
""" Tests shift """
board = Board()
old_leftover = board.leftover_card
board.shift(BoardLocation(0, 1), 270)
assert old_leftover.rotation == 270
def create_board(maze_string=ALL_CONNECTED_3):
maze = factories.create_maze(maze_string)
return Board(maze=maze)
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_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 given_empty_game__when_adding_players__creates_pieces_on_board():
board = Board()
game = Game(identifier=0, board=board, turns=Mock())
add_players(game, 4)
assert len(board.pieces) == 4
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))
def test_get_enabled_shift_locations_without_previous_shift():
""" Tests get_enabled_shift_locations where the previous shift is None """
board = Board()
game = Game(identifier=0, board=board)
enabled_shift_locations = game.get_enabled_shift_locations()
assert set(enabled_shift_locations) == set(board.shift_locations)
def test_shift_raises_error_on_invalid_rotation():
""" Tests shift validation """
board = Board()
with pytest.raises(InvalidRotationException):
board.shift(BoardLocation(0, 1), 70)
def test_shift_raises_error_on_invalid_location():
""" Tests shift validation """
board = Board()
with pytest.raises(InvalidShiftLocationException):
board.shift(BoardLocation(0, 0), 90)
def test_shift_updates_new_leftover():
""" Tests shift """
board = Board()
pushed_out = board.maze[BoardLocation(board.maze.maze_size - 1, 1)]
board.shift(BoardLocation(0, 1), 270)
assert pushed_out == board.leftover_card
def create_board(maze_size=7):
""" Creates a board with a given maze size.
The maze and the leftover obey the generalized original-game layout and maze card distribution rules """
maze, leftover = create_maze_and_leftover(size=maze_size)
return Board(maze=maze, leftover_card=leftover)