test.py

# -*- coding: utf-8 -*-

import faulthandler
import unittest
import pyffish as sf

faulthandler.enable()

CHESS = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
CHESS960 = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w HAha - 0 1"
CAPA = "rnabqkbcnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNABQKBCNR w KQkq - 0 1"
CAPAHOUSE = "rnabqkbcnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNABQKBCNR[] w KQkq - 0 1"
SITTUYIN = "8/8/4pppp/pppp4/4PPPP/PPPP4/8/8[KFRRSSNNkfrrssnn] w - - 0 1"
MAKRUK = "rnsmksnr/8/pppppppp/8/8/PPPPPPPP/8/RNSKMSNR w - - 0 1"
SHOGI = "lnsgkgsnl/1r5b1/ppppppppp/9/9/9/PPPPPPPPP/1B5R1/LNSGKGSNL[-] w - - 0 1"
SHOGI_SFEN = "lnsgkgsnl/1r5b1/ppppppppp/9/9/9/PPPPPPPPP/1B5R1/LNSGKGSNL b - 1"
SEIRAWAN = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR[HEhe] w KQBCDFGkqbcdfg - 0 1"
GRAND = "r8r/1nbqkcabn1/pppppppppp/10/10/10/10/PPPPPPPPPP/1NBQKCABN1/R8R w - - 0 1"
GRANDHOUSE = "r8r/1nbqkcabn1/pppppppppp/10/10/10/10/PPPPPPPPPP/1NBQKCABN1/R8R[] w - - 0 1"
XIANGQI = "rnbakabnr/9/1c5c1/p1p1p1p1p/9/9/P1P1P1P1P/1C5C1/9/RNBAKABNR w - - 0 1"
SHOGUN = "rnb+fkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNB+FKBNR w KQkq - 0 1"
JANGGI = "rnba1abnr/4k4/1c5c1/p1p1p1p1p/9/9/P1P1P1P1P/1C5C1/4K4/RNBA1ABNR w - - 0 1"


ini_text = """
# Hybrid variant of Grand-chess and crazyhouse, using Grand-chess as a template
[grandhouse:grand]
startFen = r8r/1nbqkcabn1/pppppppppp/10/10/10/10/PPPPPPPPPP/1NBQKCABN1/R8R[] w - - 0 1
pieceDrops = true
capturesToHand = true

# Shogun chess
[shogun:crazyhouse]
startFen = rnb+fkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNB+FKBNR w KQkq - 0 1
commoner = c
centaur = g
archbishop = a
chancellor = m
fers = f
promotionRank = 6
promotionLimit = g:1 a:1 m:1 q:1
promotionPieceTypes = -
promotedPieceType = p:c n:g b:a r:m f:q
mandatoryPawnPromotion = false
firstRankPawnDrops = true
promotionZonePawnDrops = true
whiteDropRegion = *1 *2 *3 *4 *5
blackDropRegion = *4 *5 *6 *7 *8
immobilityIllegal = true

# Asymmetric variant with one army using pieces that move like knights but attack like other pieces (kniroo and knibis)
[orda:chess]
startFen = lhaykahl/8/pppppppp/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1
centaur = h
knibis = a
kniroo = l
silver = y
promotionPieceTypes = qh
flagPiece = k
whiteFlag = *8
blackFlag = *1
"""

sf.load_variant_config(ini_text)


variant_positions = {
    "chess": {
        "k7/8/8/8/8/8/8/K7 w - - 0 1": (True, True),  # K vs K
        "k7/b7/8/8/8/8/8/K7 w - - 0 1": (True, True),  # K vs KB
        "k7/n7/8/8/8/8/8/K7 w - - 0 1": (True, True),  # K vs KN
        "k7/p7/8/8/8/8/8/K7 w - - 0 1": (True, False),  # K vs KP
        "k7/r7/8/8/8/8/8/K7 w - - 0 1": (True, False),  # K vs KR
        "k7/q7/8/8/8/8/8/K7 w - - 0 1": (True, False),  # K vs KQ
        "k7/nn6/8/8/8/8/8/K7 w - - 0 1": (True, False),  # K vsNN K
        "k7/bb6/8/8/8/8/8/K7 w - - 0 1": (True, False),  # K vs KBB opp color
        "k7/b1b5/8/8/8/8/8/K7 w - - 0 1": (True, True),  # K vs KBB same color
        "kb6/8/8/8/8/8/8/K1B6 w - - 0 1": (True, True),  # KB vs KB same color
        "kb6/8/8/8/8/8/8/KB7 w - - 0 1": (False, False),  # KB vs KB opp color
        "8/8/8/8/8/6KN/8/6nk w - - 0 1": (False, False),  # KN vs KN
    },
    "seirawan": {
        "k7/8/8/8/8/8/8/K7[] w - - 0 1": (True, True),  # K vs K
        "k7/8/8/8/8/8/8/KH6[] w - - 0 1": (False, True),  # KH vs K
        "k7/8/8/8/8/8/8/4K3[E] w E - 0 1": (False, True),  # KE vs K
    },
    "sittuyin": {
        "8/8/4pppp/pppp4/4PPPP/PPPP4/8/8[KFRRSSNNkfrrssnn] w - - 0 1": (False, False),  # starting position
        "k7/8/8/8/8/8/8/K7[] w - - 0 1": (True, True),  # K vs K
        "k6P/8/8/8/8/8/8/K7[] w - - 0 1": (True, True),  # KP vs K
        "k6P/8/8/8/8/8/8/K6p[] w - - 0 1": (False, False),  # KP vs KP
        "k7/8/8/8/8/8/8/KFF5[] w - - 0 1": (False, True),  # KFF vs K
        "k7/8/8/8/8/8/8/KS6[] w - - 0 1": (False, True),  # KS vs K
    },
    "xiangqi": {
        "rnbakabnr/9/1c5c1/p1p1p1p1p/9/9/P1P1P1P1P/1C5C1/9/RNBAKABNR w - - 0 1": (False, False),  # starting position
        "5k3/4a4/3CN4/9/1PP5p/9/8P/4C4/4A4/2B1K4 w - - 0 46": (False, False),  # issue #53
        "4k4/9/9/9/9/9/9/9/9/4K4 w - - 0 1": (True, True),  # K vs K
        "4k4/9/9/4p4/9/9/9/9/9/4KR3 w - - 0 1": (False, False),  # KR vs KP
        "4k4/9/9/9/9/9/9/9/9/3KN4 w - - 0 1": (False, True),  # KN vs K
        "4k4/9/4b4/9/9/9/9/4B4/9/4K4 w - - 0 1": (True, True),  # KB vs KB
        "4k4/9/9/9/9/9/9/9/4A4/4KC3 w - - 0 1": (False, True),  # KCA vs K
    },
    "janggi": {
        JANGGI: (False, False),  # starting position
        "5k3/4a4/3CN4/9/1PP5p/9/8P/4C4/4A4/2B1K4 w - - 0 46": (False, False),  # issue #53
        "4k4/9/9/9/9/4B4/4B4/9/9/4K4 w - - 0 1": (False, True),  # KEE vs K
        "4k4/9/9/9/9/9/9/9/4A4/4KC3 w - - 0 1": (False, True),  # KCA vs K
    },
    "shako": {
        "k9/10/10/10/10/10/10/10/10/KC8 w - - 0 1": (True, True),  # KC vs K
        "k9/10/10/10/10/10/10/10/10/KCC7 w - - 0 1": (False, True),  # KCC vs K
        "k9/10/10/10/10/10/10/10/10/KEC7 w - - 0 1": (False, True),  # KEC vs K
        "k9/10/10/10/10/10/10/10/10/KNE7 w - - 0 1": (False, True),  # KNE vs K
        "kb8/10/10/10/10/10/10/10/10/KE8 w - - 0 1": (False, False),  # KE vs KB opp color
        "kb8/10/10/10/10/10/10/10/10/K1E7 w - - 0 1": (True, True),  # KE vs KB same color
    },
    "orda": {
        "k7/8/8/8/8/8/8/K7 w - - 0 1": (False, False),  # K vs K
    },
}


class TestPyffish(unittest.TestCase):
    def test_version(self):
        result = sf.version()
        self.assertEqual(result, (0, 0, 51))

    def test_info(self):
        result = sf.info()
        self.assertTrue(result.startswith("Fairy-Stockfish"))

    def test_set_option(self):
        result = sf.set_option("UCI_Variant", "capablanca")
        self.assertIsNone(result)

    def test_two_boards(self):
        self.assertFalse(sf.two_boards("chess"))
        self.assertTrue(sf.two_boards("bughouse"))

    def test_start_fen(self):
        result = sf.start_fen("capablanca")
        self.assertEqual(result, CAPA)

        result = sf.start_fen("capahouse")
        self.assertEqual(result, CAPAHOUSE)

        result = sf.start_fen("xiangqi")
        self.assertEqual(result, XIANGQI)

        result = sf.start_fen("grandhouse")
        self.assertEqual(result, GRANDHOUSE)

        result = sf.start_fen("shogun")
        self.assertEqual(result, SHOGUN)

    def test_legal_moves(self):
        fen = "10/10/10/10/10/k9/10/K9 w - - 0 1"
        result = sf.legal_moves("capablanca", fen, [])
        self.assertEqual(result, ["a1b1"])

        result = sf.legal_moves("grand", GRAND, ["a3a5"])
        self.assertIn("a10b10", result)

        result = sf.legal_moves("xiangqi", XIANGQI, ["h3h10"])
        self.assertIn("i10h10", result)

        result = sf.legal_moves("xiangqi", XIANGQI, ["h3h10"])
        self.assertIn("i10h10", result)

        result = sf.legal_moves("shogun", SHOGUN, ["c2c4", "b8c6", "b2b4", "b7b5", "c4b5", "c6b8"])
        self.assertIn("b5b6+", result)

        # In Janggi stalemate position pass move (in place king move) is possible
        fen = "4k4/c7R/9/3R1R3/9/9/9/9/9/3K5 b - - 0 1"
        result = sf.legal_moves("janggi", fen, [])
        self.assertEqual(result, ["e10e10"])

    def test_short_castling(self):
        legals = ['f5f4', 'a7a6', 'b7b6', 'c7c6', 'd7d6', 'e7e6', 'i7i6', 'j7j6', 'a7a5', 'b7b5', 'c7c5', 'e7e5', 'i7i5', 'j7j5', 'b8a6', 'b8c6', 'h6g4', 'h6i4', 'h6j5', 'h6f7', 'h6g8', 'h6i8', 'd5a2', 'd5b3', 'd5f3', 'd5c4', 'd5e4', 'd5c6', 'd5e6', 'd5f7', 'd5g8', 'j8g8', 'j8h8', 'j8i8', 'e8f7', 'c8b6', 'c8d6', 'g6g2', 'g6g3', 'g6f4', 'g6g4', 'g6h4', 'g6e5', 'g6g5', 'g6i5', 'g6a6', 'g6b6', 'g6c6', 'g6d6', 'g6e6', 'g6f6', 'g6h8', 'f8f7', 'f8g8', 'f8i8']
        moves = ['b2b4', 'f7f5', 'c2c3', 'g8d5', 'a2a4', 'h8g6', 'f2f3', 'i8h6', 'h2h3']
        result = sf.legal_moves("capablanca", CAPA, moves)
        self.assertCountEqual(legals, result)
        self.assertIn("f8i8", result)

        moves = ['a2a4', 'f7f5', 'b2b3', 'g8d5', 'b1a3', 'i8h6', 'c1a2', 'h8g6', 'c2c4']
        result = sf.legal_moves("capablanca", CAPA, moves)
        self.assertIn("f8i8", result)

        moves = ['f2f4', 'g7g6', 'g1d4', 'j7j6', 'h1g3', 'b8a6', 'i1h3', 'h7h6']
        result = sf.legal_moves("capablanca", CAPA, moves)
        self.assertIn("f1i1", result)

    def test_get_fen(self):
        result = sf.get_fen("chess", CHESS, [])
        self.assertEqual(result, CHESS)

        result = sf.get_fen("capablanca", CAPA, [])
        self.assertEqual(result, CAPA)

        result = sf.get_fen("xiangqi", XIANGQI, [])
        self.assertEqual(result, XIANGQI)

        fen = "rnab1kbcnr/ppppPppppp/10/4q5/10/10/PPPPP1PPPP/RNABQKBCNR[p] b KQkq - 0 3"
        result = sf.get_fen("capahouse", CAPA, ["f2f4", "e7e5", "f4e5", "e8e5", "P@e7"])
        self.assertEqual(result, fen)

        fen0 = "reb1k2r/ppppqppp/2nb1n2/4p3/4P3/N1P2N2/PB1PQPPP/RE2KBHR[h] b KQkqac - 2 6"
        fen1 = "reb2rk1/ppppqppp/2nb1n2/4p3/4P3/N1P2N2/PB1PQPPP/RE2KBHR[h] w KQac - 3 7"
        result = sf.get_fen("seirawan", fen0, ["e8g8"])
        self.assertEqual(result, fen1)

        result = sf.get_fen("chess", CHESS, [], True, False, False)
        self.assertEqual(result, CHESS960)

        # test O-O-O
        fen = "rbkqnrbn/pppppppp/8/8/8/8/PPPPPPPP/RBKQNRBN w AFaf - 0 1"
        moves = ["d2d4", "f7f5", "e1f3", "h8g6", "h1g3", "c7c6", "c2c3", "e7e6", "b1d3", "d7d5", "d1c2", "b8d6", "e2e3", "d8d7", "c1a1"]
        result = sf.get_fen("chess", fen, moves, True, False, False)
        self.assertEqual(result, "r1k1nrb1/pp1q2pp/2pbp1n1/3p1p2/3P4/2PBPNN1/PPQ2PPP/2KR1RB1 b fa - 2 8", CHESS960)

        # SFEN
        result = sf.get_fen("shogi", SHOGI, [], False, True)
        self.assertEqual(result, SHOGI_SFEN)

        # makruk FEN
        fen = "rnsmksnr/8/1pM~1pppp/p7/8/PPPP1PPP/8/RNSKMSNR b - - 0 3"
        result = sf.get_fen("makruk", MAKRUK, ["e3e4", "d6d5", "e4d5", "a6a5", "d5c6m"], False, False, True)
        self.assertEqual(result, fen)
        result = sf.get_fen("makruk", fen, [], False, False, True)
        self.assertEqual(result, fen)

        # makruk piece honor counting
        fen = "8/3k4/8/2K1S1P1/8/8/8/8 w - - 0 1"
        moves = ["g5g6m"]
        result = sf.get_fen("makruk", fen, moves, False, False, True)
        self.assertEqual(result, "8/3k4/6M~1/2K1S3/8/8/8/8 b - 88 8 1")

        fen = "8/2K3k1/5m2/4S1S1/8/8/8/8 w - 128 97 1"
        moves = ["e5f6"]
        result = sf.get_fen("makruk", fen, moves, False, False, True)
        self.assertEqual(result, "8/2K3k1/5S2/6S1/8/8/8/8 b - 44 8 1")

        # makruk board honor counting
        fen = "3k4/2m5/8/4MP2/3KS3/8/8/8 w - - 0 1"
        moves = ["f5f6m"]
        result = sf.get_fen("makruk", fen, moves, False, False, True)
        self.assertEqual(result, "3k4/2m5/5M~2/4M3/3KS3/8/8/8 b - 128 0 1")

        fen = "3k4/2m5/5M~2/4M3/3KS3/8/8/8 w - 128 0 33"
        moves = ["d4d5"]
        result = sf.get_fen("makruk", fen, moves, False, False, True)
        self.assertEqual(result, "3k4/2m5/5M~2/3KM3/4S3/8/8/8 b - 128 1 33")

        fen = "3k4/2m5/5M~2/4M3/3KS3/8/8/8 w - 128 36 1"
        moves = ["d4d5"]
        result = sf.get_fen("makruk", fen, moves, False, False, True)
        self.assertEqual(result, "3k4/2m5/5M~2/3KM3/4S3/8/8/8 b - 128 37 1")

        fen = "3k4/2m5/5M~2/4M3/3KS3/8/8/8 w - 128 0 33"
        moves = ["d4d5"]
        result = sf.get_fen("makruk", fen, moves, False, False, True, -1)
        self.assertEqual(result, "3k4/2m5/5M~2/3KM3/4S3/8/8/8 b - 128 0 33")

        fen = "3k4/2m5/5M~2/4M3/3KS3/8/8/8 w - 128 7 33"
        moves = ["d4d5"]
        result = sf.get_fen("makruk", fen, moves, False, False, True, 58)
        self.assertEqual(result, "3k4/2m5/5M~2/3KM3/4S3/8/8/8 b - 128 8 33")

    def test_get_san(self):
        fen = "4k3/8/3R4/8/1R3R2/8/3R4/4K3 w - - 0 1"
        result = sf.get_san("chess", fen, "b4d4")
        self.assertEqual(result, "Rbd4")

        result = sf.get_san("chess", fen, "f4d4")
        self.assertEqual(result, "Rfd4")

        result = sf.get_san("chess", fen, "d2d4")
        self.assertEqual(result, "R2d4")

        result = sf.get_san("chess", fen, "d6d4")
        self.assertEqual(result, "R6d4")

        fen = "4k3/8/3R4/3P4/1RP1PR2/8/3R4/4K3 w - - 0 1"
        result = sf.get_san("chess", fen, "d2d4")
        self.assertEqual(result, "Rd4")

        fen = "1r2k3/P1P5/8/8/8/8/8/4K3 w - - 0 1"
        result = sf.get_san("chess", fen, "c7b8q")
        self.assertEqual(result, "cxb8=Q+")

        fen = "1r2k3/P1P5/8/8/8/8/8/4K3 w - - 0 1"
        result = sf.get_san("chess", fen, "c7b8q", False, sf.NOTATION_LAN)
        self.assertEqual(result, "c7xb8=Q+")

        result = sf.get_san("capablanca", CAPA, "e2e4")
        self.assertEqual(result, "e4")

        result = sf.get_san("capablanca", CAPA, "e2e4", False, sf.NOTATION_LAN)
        self.assertEqual(result, "e2-e4")

        result = sf.get_san("capablanca", CAPA, "h1i3")
        self.assertEqual(result, "Ci3")

        result = sf.get_san("sittuyin", SITTUYIN, "R@a1")
        self.assertEqual(result, "R@a1")

        fen = "3rr3/1kn3n1/1ss1p1pp/1pPpP3/6PP/p3KN2/2SSFN2/3R3R[] b - - 0 14"
        result = sf.get_san("sittuyin", fen, "c6c5")
        self.assertEqual(result, "Scxc5")

        fen = "7R/1r6/3k1np1/3s2N1/3s3P/4n3/6p1/2R3K1[] w - - 2 55"
        result = sf.get_san("sittuyin", fen, "h4h4f")
        self.assertEqual(result, "h4=F")

        fen = "k7/2K3P1/8/4P3/8/8/8/1R6[] w - - 0 1"
        result = sf.get_san("sittuyin", fen, "e5f6f")
        self.assertEqual(result, "e5f6=F")

        result = sf.get_san("shogi", SHOGI, "i3i4")
        self.assertEqual(result, "P-16")

        result = sf.get_san("shogi", SHOGI, "i3i4", False, sf.NOTATION_SHOGI_HOSKING)
        self.assertEqual(result, "P16")

        result = sf.get_san("shogi", SHOGI, "f1e2", False, sf.NOTATION_SHOGI_HOSKING)
        self.assertEqual(result, "G49-58")
        result = sf.get_san("shogi", SHOGI, "f1e2", False, sf.NOTATION_SHOGI_HODGES)
        self.assertEqual(result, "G4i-5h")
        result = sf.get_san("shogi", SHOGI, "f1e2", False, sf.NOTATION_SHOGI_HODGES_NUMBER)
        self.assertEqual(result, "G49-58")

        fen = "lnsgkgsnl/1r5b1/pppppp1pp/6p2/9/2P6/PP1PPPPPP/1B5R1/LNSGKGSNL w -"
        result = sf.get_san("shogi", fen, "b2h8", False, sf.NOTATION_SHOGI_HODGES)
        self.assertEqual(result, "Bx2b=")
        result = sf.get_san("shogi", fen, "b2h8+", False, sf.NOTATION_SHOGI_HODGES)
        self.assertEqual(result, "Bx2b+")

        fen = "lnsgkg1nl/1r5s1/pppppp1pp/6p2/9/2P6/PP1PPPPPP/7R1/LNSGKGSNL[Bb] w "
        result = sf.get_san("shogi", fen, "B@g7", False, sf.NOTATION_SHOGI_HODGES)
        self.assertEqual(result, "B*3c")
        result = sf.get_san("shogi", fen, "B@g7", False, sf.NOTATION_SHOGI_HODGES_NUMBER)
        self.assertEqual(result, "B*33")

        fen = "lnsgkg1nl/1r4s+B1/pppppp1pp/6p2/9/2P6/PP1PPPPPP/7R1/LNSGKGSNL[B] w "
        result = sf.get_san("shogi", fen, "h8g7", False, sf.NOTATION_SHOGI_HODGES)
        self.assertEqual(result, "+B-3c")

        fen = "lnk2gsnl/7b1/p1p+SGp1pp/6p2/1pP6/4P4/PP3PPPP/1S2G2R1/L2GK1bNL[PRppns] w "
        result = sf.get_san("shogi", fen, "d7d8", False, sf.NOTATION_SHOGI_HODGES)
        self.assertEqual(result, "+S-6b")

        result = sf.get_san("xiangqi", XIANGQI, "h1g3")
        self.assertEqual(result, "Hg3")

        result = sf.get_san("xiangqi", XIANGQI, "h1g3", False, sf.NOTATION_XIANGQI_WXF)
        self.assertEqual(result, "H2+3")

        result = sf.get_san("xiangqi", XIANGQI, "c1e3")
        self.assertEqual(result, "Ece3")

        result = sf.get_san("xiangqi", XIANGQI, "c1e3", False, sf.NOTATION_XIANGQI_WXF)
        self.assertEqual(result, "E7+5")

        result = sf.get_san("xiangqi", XIANGQI, "h3h10")
        self.assertEqual(result, "Cxh10")

        result = sf.get_san("xiangqi", XIANGQI, "h3h10", False, sf.NOTATION_XIANGQI_WXF)
        self.assertEqual(result, "C2+7")

        result = sf.get_san("xiangqi", XIANGQI, "h3h5")
        self.assertEqual(result, "Ch5")

        # skip disambiguation for elephants and advisors, but not for pieces that require it
        fen = "rnbakabnr/9/1c5c1/p1p1p1p1p/9/1NB6/P1P1P1P1P/1C1A3C1/9/RNBAK21R w - - 0 1"
        result = sf.get_san("xiangqi", fen, "c5e3", False, sf.NOTATION_XIANGQI_WXF)
        self.assertEqual(result, "E7-5")
        result = sf.get_san("xiangqi", fen, "d1e2", False, sf.NOTATION_XIANGQI_WXF)
        self.assertEqual(result, "A6+5")
        result = sf.get_san("xiangqi", fen, "b5c7", False, sf.NOTATION_XIANGQI_WXF)
        self.assertEqual(result, "H++7")

        # Tandem pawns
        fen = "rnbakabnr/9/1c5c1/p1p1P1p1p/4P4/9/P3P3P/1C5C1/9/RNBAKABNR w - - 0 1"
        result = sf.get_san("xiangqi", fen, "e7d7", False, sf.NOTATION_XIANGQI_WXF)
        self.assertEqual(result, "15=6")

        fen = "1rb1ka2r/4a4/2ncb1nc1/p1p1p1p1p/9/2P6/P3PNP1P/2N1C2C1/9/R1BAKAB1R w - - 1 7"
        result = sf.get_san("xiangqi", fen, "c3e2")
        self.assertEqual(result, "Hce2")

        result = sf.get_san("xiangqi", fen, "c3d5")
        self.assertEqual(result, "Hd5")

        result = sf.get_san("janggi", JANGGI, "b1c3", False, sf.NOTATION_JANGGI)
        self.assertEqual(result, "H02-83")

        fen = "1b1aa2b1/5k3/3ncn3/1pp1pp3/5r2p/9/P1PPB1PPB/2N1CCN1c/9/R2AKAR2 w - - 19 17"
        result = sf.get_san("janggi", fen, "d1e2", False, sf.NOTATION_SAN)
        self.assertEqual(result, "Ade2")

        fen = "1Pbcka3/3nNn1c1/N2CaC3/1pB6/9/9/5P3/9/4K4/9 w - - 0 23"
        result = sf.get_san("janggi", fen, "f8f10", False, sf.NOTATION_SAN)
        self.assertEqual(result, "Cfxf10")

        fen = "rnsm1s1r/4n1k1/1ppppppp/p7/2PPP3/PP3PPP/4N2R/RNSKMS2 b - - 1 5"
        result = sf.get_san("makruk", fen, "f8f7")
        self.assertEqual(result, "Sf7")

        fen = "4k3/8/8/4S3/8/2S5/8/4K3 w - - 0 1"
        result = sf.get_san("makruk", fen, "e5d4")
        self.assertEqual(result, "Sed4")

        result = sf.get_san("makruk", fen, "c3d4")
        self.assertEqual(result, "Scd4")

        fen = "4k3/8/8/3S4/8/3S4/8/4K3 w - - 0 1"
        result = sf.get_san("makruk", fen, "d3d4")
        self.assertEqual(result, "Sd4")

        UCI_moves = ["e2e4", "e7e5", "g1f3", "b8c6h", "f1c4", "f8c5e"]
        SAN_moves = ["e4", "e5", "Nf3", "Nc6/H", "Bc4", "Bc5/E"]

        fen = SEIRAWAN
        for i, move in enumerate(UCI_moves):
            result = sf.get_san("seirawan", fen, move)
            self.assertEqual(result, SAN_moves[i])
            fen = sf.get_fen("seirawan", SEIRAWAN, UCI_moves[:i + 1])

        result = sf.get_san("seirawan", fen, "e1g1")
        self.assertEqual(result, "O-O")

        result = sf.get_san("seirawan", fen, "e1g1h")
        self.assertEqual(result, "O-O/He1")
        result = sf.get_san("seirawan", fen, "e1g1e")
        self.assertEqual(result, "O-O/Ee1")

        result = sf.get_san("seirawan", fen, "h1e1h")
        self.assertEqual(result, "O-O/Hh1")
        result = sf.get_san("seirawan", fen, "h1e1e")
        self.assertEqual(result, "O-O/Eh1")

    def test_get_san_moves(self):
        UCI_moves = ["e2e4", "e7e5", "g1f3", "b8c6h", "f1c4", "f8c5e"]
        SAN_moves = ["e4", "e5", "Nf3", "Nc6/H", "Bc4", "Bc5/E"]
        result = sf.get_san_moves("seirawan", SEIRAWAN, UCI_moves)
        self.assertEqual(result, SAN_moves)

        UCI_moves = ["c3c4", "g7g6", "b2h8"]
        SAN_moves = ["P-76", "P-34", "Bx22="]
        result = sf.get_san_moves("shogi", SHOGI, UCI_moves)
        self.assertEqual(result, SAN_moves)

        UCI_moves = ["h3e3", "h10g8", "h1g3", "c10e8", "a1a3", "i10h10"]
        SAN_moves = ["C2=5", "H8+7", "H2+3", "E3+5", "R9+2", "R9=8"]
        result = sf.get_san_moves("xiangqi", XIANGQI, UCI_moves, False, sf.NOTATION_XIANGQI_WXF)
        self.assertEqual(result, SAN_moves)

        UCI_moves = ["e2e4", "d7d5", "f1a6+", "d8d6"]
        SAN_moves = ["e4", "d5", "Ba6=A", "Qd6"]
        result = sf.get_san_moves("shogun", SHOGUN, UCI_moves)
        self.assertEqual(result, SAN_moves)

    def test_gives_check(self):
        result = sf.gives_check("capablanca", CAPA, [])
        self.assertFalse(result)

        result = sf.gives_check("capablanca", CAPA, ["e2e4"])
        self.assertFalse(result)

        moves = ["g2g3", "d7d5", "a2a3", "c8h3"]
        result = sf.gives_check("capablanca", CAPA, moves)
        self.assertTrue(result)

    def test_game_result(self):
        result = sf.game_result("chess", CHESS, ["f2f3", "e7e5", "g2g4", "d8h4"])
        self.assertTrue(result < 0)

    def test_is_immediate_game_end(self):
        result = sf.is_immediate_game_end("capablanca", CAPA, [])
        self.assertFalse(result[0])

        # bikjang (facing kings)
        moves = "e2e3 e9f9 h3d3 e7f7 i1i3 h10i8 i3h3 c10e7 h3h8 i10i9 h8b8 i9g9 d3f3 f9e9 f3f10 e7c10 f10c10 b10c8 c10g10 g9f9 b8c8 a10b10 b3f3 f9h9 a1a2 h9f9 a2d2 b10b9 d2d10 e9d10 c8c10 d10d9 f3f9 i8g9 f9b9 a7a6 g10g7 f7f6 e4e5 c7d7 g1e4 i7i6 e4b6 d9d8 c10c8 d8d9 b9g9 d7d6 b6e8 i6h6 e5e6 f6e6 c1e4 a6b6 e4b6 d6d5 c4c5 d9d10 e3d3 h6i6 c5c6 d5c5"
        result = sf.is_immediate_game_end("janggi", JANGGI, moves.split())
        self.assertFalse(result[0])

        moves = "e2e3 e9f9 h3d3 e7f7 i1i3 h10i8 i3h3 c10e7 h3h8 i10i9 h8b8 i9g9 d3f3 f9e9 f3f10 e7c10 f10c10 b10c8 c10g10 g9f9 b8c8 a10b10 b3f3 f9h9 a1a2 h9f9 a2d2 b10b9 d2d10 e9d10 c8c10 d10d9 f3f9 i8g9 f9b9 a7a6 g10g7 f7f6 e4e5 c7d7 g1e4 i7i6 e4b6 d9d8 c10c8 d8d9 b9g9 d7d6 b6e8 i6h6 e5e6 f6e6 c1e4 a6b6 e4b6 d6d5 c4c5 d9d10 e3d3 h6i6 c5c6 d5c5 d3d3"
        result = sf.is_immediate_game_end("janggi", JANGGI, moves.split())
        self.assertTrue(result[0])
        self.assertTrue(result[1] < 0)

    def test_is_optional_game_end(self):
        result = sf.is_optional_game_end("capablanca", CAPA, [])
        self.assertFalse(result[0])

    def test_has_insufficient_material(self):
        for variant, positions in variant_positions.items():
            for fen, expected_result in positions.items():
                result = sf.has_insufficient_material(variant, fen, [])
                self.assertEqual(result, expected_result, "{}: {}".format(variant, fen))

    def test_validate_fen(self):
        for variant, positions in variant_positions.items():
            for fen in positions:
                self.assertTrue(sf.validate_fen(fen, variant) == 1, "{}: {}".format(variant, fen))


if __name__ == '__main__':
    unittest.main(verbosity=2)