def test_pawn_no_valid_moves():
board = Board()
board.board[1][0] = Pawn(1, 0, 'b')
white_pawn = Pawn(2, 0, 'w')
white_pawn.valid_moves(board)
actual = white_pawn.move_list
expected = []
assert actual == expected
def test_move_method_for_pawn():
board = Board()
pawn = Pawn(6, 1, 'w')
pawn.valid_moves(board)
board.board[6][1] = pawn
board.move([6, 1], [4, 1])
actual1 = isinstance(board.board[4][1], Pawn)
expected1 = True
actual2 = isinstance(board.board[6][1], Pawn)
expected2 = False
actual3 = board.board[4][1].move_list
expected3 = [[3, 1]]
actual4 = board.player_turn
expected4 = 'b'
assert actual1 == expected1
assert actual2 == expected2
assert actual3 == expected3
assert actual4 == expected4
def test_capture_a_piece():
board = Board()
w_pawn = Pawn(6, 1, 'w')
b_knight = Knight(5, 2, 'b')
board.board[6][1] = w_pawn
board.board[5][2] = b_knight
w_pawn.valid_moves(board)
board.move([6, 1], [5, 2])
print(w_pawn.attack_list)
actual1 = isinstance(board.board[5][2], Pawn)
expected1 = True
actual2 = isinstance(board.board[6][1], Pawn)
expected2 = False
actual3 = board.board[5][2].move_list
expected3 = [[4, 2]]
actual4 = board.player_turn
expected4 = 'b'
assert actual1 == expected1
assert actual2 == expected2
assert actual3 == expected3
assert actual4 == expected4
def is_controlled_sq(self, req_pos, turn):
'''
Checks whether a square is controlled by a piece.
'turn' means controlled by piece of which colour/turn
'''
# Along knight routes (L)
knight = Knight(0)
knight.set_pos(req_pos)
# print(self.get_sq_notation(req_pos))
# print()
for move in knight.valid_moves():
# print(self.get_sq_notation(move), end=': ')
piece = self.fetch_piece(move)
# print(piece)
if piece and type(piece).__name__ == 'Knight' and piece.colour == turn:
# self.pos_of_piece_causing_check = move
# print('yeah')
del knight
return True
# Along diagonals
bishop = Bishop(0)
bishop.set_pos(req_pos)
for move in bishop.valid_moves():
piece = self.fetch_piece(move)
if piece and \
(type(piece).__name__ == 'Bishop' or
type(piece).__name__ == 'Queen') and \
piece.colour == turn and \
not piece.is_path_obstructed(self, req_pos, move):
# print('yes')
# self.pos_of_piece_causing_check = move
del bishop
# print('Obstruct')
return True
# Along ranks and files
rook = Rook(0)
rook.set_pos(req_pos)
for move in rook.valid_moves():
# print(self.get_sq_notation(move), end=": ")
piece = self.fetch_piece(move)
# print(piece)
if piece and (type(piece).__name__ == 'Rook' or
type(piece).__name__ == 'Queen') and \
piece.colour == turn and \
not piece.is_path_obstructed(self, req_pos, move):
# self.pos_of_piece_causing_check = move
# print('here')
del rook
return True
# King opposition
king = King()
king.set_pos(req_pos)
for move in king.valid_moves():
piece = self.fetch_piece(move)
if piece and type(piece).__name__ == 'King' and piece.colour == turn:
if not self.is_controlled_sq(move, self.turn):
# print('here')
# self.pos_of_piece_causing_check = move
del king
return True
# Pawns
if turn == 'White':
pawn = Pawn(colour='Black')
else:
pawn = Pawn()
pawn.set_pos(req_pos)
for move in pawn.valid_moves(self.is_flipped):
# If directly in front/back
if move[0] - req_pos[0] == 0:
continue
piece = self.fetch_piece(move)
if piece and type(piece).__name__ == 'Pawn' and piece.colour == turn:
# self.pos_of_piece_causing_check = move
del pawn
return True
del knight, bishop, rook, king, pawn
# print('Nope')
return False