def test_valid_moves_do_not_include_backwards_moves(self):
game = Game()
game.reset()
game.move("26-23")
game.move("7-11")
assert "23-26" not in game.valid_moves("white")
assert "11-7" not in game.valid_moves("black")
def test_that_king_takes_are_included_in_valid_moves(self):
game = Game()
game._board._board[4, 3] = King("white", None)
game._board._board[3, 4] = King("black", None)
game._board._board[5, 4] = King("black", None)
game._board._board[2, 3] = King("white", None)
assert "18-11" in game.valid_moves("white")
assert "15-22" in game.valid_moves("black")
assert "18-27" in game.valid_moves("white")
assert "15-6" in game.valid_moves("black")
def test_takes_included_in_valid_moves(self):
game = Game()
game._board._board[4, 3] = Piece("white", None)
game._board._board[3, 4] = Piece("black", None)
game._board._board[5, 4] = Piece("black", None)
game._board._board[2, 3] = Piece("white", None)
assert "18-11" in game.valid_moves("white")
assert "15-22" in game.valid_moves("black")
assert "18-27" not in game.valid_moves(
"white") # because piece can't move backwards
assert "15-6" not in game.valid_moves("black")
def test_valid_moves_include_backwards_moves_for_kings(self):
game = Game()
game.reset()
game._board._board[4, 3] = King("white", None)
game._board._board[4, 5] = King("black", None)
white_moves = game.valid_moves("white")
for move in ["18-14", "18-15", "18-22", "18-23"]:
assert move in white_moves
black_moves = game.valid_moves("black")
for move in ["19-15", "19-16", "19-23", "19-24"]:
assert move in black_moves
def test_valid_moves_can_accept_other_piece(self):
game = Game()
# Remove all black pieces, but keep game turn as white
game._board._board[:, :2] = EmptyPiece()
assert game.valid_moves("black") == []
def test_valid_moves_considers_player_turn(self):
game = Game()
game.turn = "black"
# Remove existing black pieces
game._board._board[:, :2] = EmptyPiece()
game._board._board[0, 3] = Piece("black", None)
assert game.valid_moves() == ["2-6", "2-7"]
def test_other_play_wins_if_no_valid_moves(self):
game = Game()
game.reset()
game.valid_moves = mock.Mock(return_value=[])
assert game.game_over()
assert game.result == "black"
game.turn = "black"
assert game.game_over()
assert game.result == "white"
def test_valid_moves_returns_empty_list_if_no_moves(self):
game = Game()
# game._board is initialised to an empty array
# no pieces == no moves
assert game.valid_moves() == []