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test_pgn_file.py
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test_pgn_file.py
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# -*- coding: utf-8 -*-
#
# This file is part of the python-chess library.
# Copyright (C) 2012 Niklas Fiekas <[email protected]>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import chess
try:
import libchess
except ImportError:
from chess import libchess
import unittest
from libchess import GameHeaderBag
# from chess.leveldict import LevelJsonDict
from chess import PgnFile
import leveldb
INDEX_FILE_POS = "last_pos"
DB_HEADER_MAP = {"White": 0, "WhiteElo": 1, "Black": 2,
"BlackElo": 3, "Result": 4, "Date": 5, "Event": 6, "Site": 7,
"ECO": 8, INDEX_FILE_POS:9, "FEN":10}
class PgnIndexTestCase(unittest.TestCase):
"""Tests indexing PGN files."""
def write_header(self, g, gm_book, i, tags):
j = {}
for tag in tags:
if type(tag) is dict:
for k,v in tag.iteritems():
j[k] = v
elif g.__contains__(tag):
# print g[tag]
j[tag] = unicode(g[tag], "ISO-8859-1")
# print j
# try:
gm_book["game_index_{0}".format(i)] = j
# except UnicodeDecodeError:
# gm_book["game_index_{0}".format(i)] = j.unicode(("utf-8")
def get_game(self, db_index, game_num):
first = db_index.Get("game_{0}_data".format(game_num)).split("|")[DB_HEADER_MAP[INDEX_FILE_POS]]
# if game_num+1 < self.pgn_index[INDEX_TOTAL_GAME_COUNT]:
# second = self.db_index_book.Get("game_{0}_{1}".format(game_num+1,INDEX_FILE_POS))
# second = self.pgn_index["game_index_{0}".format(game_num+1)][INDEX_FILE_POS]
try:
second = db_index.Get("game_{0}_data".format(game_num + 1)).split("|")[DB_HEADER_MAP[INDEX_FILE_POS]]
second = int(second)
except KeyError:
second = None
with open(db_index.Get("pgn_filename")) as f:
first = int(first)
f.seek(first)
line = 1
lines = []
while line:
line = f.readline()
pos = f.tell()
if second and pos >= second:
break
# print pos
lines.append(line)
# f.close()
# for l in lines:
# print l
# print dir(PgnFile)
games = PgnFile.open_text(lines)
return games
def test_load_complex_pgn(self):
# 131563
db = leveldb.LevelDB('book/polyglot_index.db')
self.get_game(db, 131563)
self.get_game(db, 523009)
def dont_test_uncommented(self):
"""Tests indexing the uncommented Kasparov vs. Deep Blue PGN."""
# gm_book = LevelJsonDict('gm_test.db')
gm_book = LevelJsonDict('book/custom/watson.db')
# # pgn_file = "test/kasparov-deep-blue-1997.pgn"
# pgn_file = "test/2600_2013_34.pgn"
#
# index = chess.PgnIndex(pgn_file)
# gm_book["total_game_count"] = index.__len__()
# gm_book["pgn_filename"] = pgn_file
# print "length:"
# print index.__len__()
# for i in range(0, index.__len__()):
# g = index.get_game_headers(i)
# # print index.get_pos(1)
# self.write_header(g, gm_book, i, [{"file_pos":index.get_pos(i)},'Event', 'Site', 'Date', 'White', 'Black', 'Result', 'PlyCount', 'ECO', 'Round', 'EventDate', 'WhiteElo', 'BlackElo', 'PlyCount', 'Source', 'EventType'])
games = chess.PgnFile.open('test/watson_strategic.pgn', leveldb_book=gm_book)
for game_index, g in enumerate(games):
while g:
if g.previous_node:
position_hash = str(g.previous_node.position.__hash__())
if position_hash not in gm_book:
gm_book[position_hash] = {"moves": [], "annotation": "", "color" : ["white"],
"eval": 5, "games": [game_index], "misc": ""}
# entry = gm_book[position_hash]
if g.move:
moves = gm_book[position_hash]["moves"]
str_move = str(g.move)
if moves:
if str_move not in moves:
moves.append(str(g.move))
# entry["moves"]=moves
gm_book[position_hash]["moves"] = moves
else:
# entry["moves"]=[str_move]
gm_book[position_hash]["moves"] = [str_move]
# entry = gm_book[position_hash]
games = gm_book[position_hash]["games"]
if game_index not in games:
games.append(game_index)
# entry["games"] = games
gm_book[position_hash]["games"] = games
# print g.move
g = g.get_next_main_move()
if __name__ == '__main__':
unittest.main()