from test.base import ChessLibTestBase
from binding.python_c_ffi import Board


class TestPerftQuick(ChessLibTestBase):
    def test_perft_1(self):
        b = Board()
        fen = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
        self.chess_ffi.load_fen(b, fen)
        node_count = {
            1: 20,
            2: 400,
            3: 8902,
            4: 197281,
            5: 4865609,
        }
        for node, count  in node_count.items():
            actual = int(self.chess_ffi._c_perft(b, node))
            self.assertEqual(count, actual, f"perft({node}) start pos")


    def test_perft_2(self):
        b = Board()
        fen = "r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq - 0 1"
        self.chess_ffi.load_fen(b, fen)
        node_count = {
            1: 48,
            2: 2039,
            3: 97862,
            4: 4085603,
        }
        for node, count  in node_count.items():
            actual = int(self.chess_ffi._c_perft(b, node))
            self.assertEqual(count, actual, f"perft({node}) start pos")


    def test_perft_3(self):
        b = Board()
        fen = "8/2p5/3p4/KP5r/1R3p1k/8/4P1P1/8 w - - 0 1"
        self.chess_ffi.load_fen(b, fen)
        node_count = {
            1: 14,
            2: 191,
            3: 2812,
            4: 43238,
            5: 674624,
        }
        for node, count  in node_count.items():
            actual = int(self.chess_ffi._c_perft(b, node))
            self.assertEqual(count, actual, f"perft({node}) start pos")


    def test_perft_4(self):
        b = Board()
        fen = "r3k2r/Pppp1ppp/1b3nbN/nP6/BBP1P3/q4N2/Pp1P2PP/R2Q1RK1 w kq - 0 1"
        self.chess_ffi.load_fen(b, fen)
        node_count = {
            1: 6,
            2: 264,
            3: 9467,
            4: 422333,
        }
        for node, count  in node_count.items():
            actual = int(self.chess_ffi._c_perft(b, node))
            self.assertEqual(count, actual, f"perft({node}) start pos")


    def test_perft_5(self):
        b = Board()
        fen = "rnbq1k1r/pp1Pbppp/2p5/8/2B5/8/PPP1NnPP/RNBQK2R w KQ - 1 8"
        self.chess_ffi.load_fen(b, fen)
        node_count = {
            1: 44,
            2: 1486,
            3: 62379,
            4: 2103487,
        }
        for node, count  in node_count.items():
            actual = int(self.chess_ffi._c_perft(b, node))
            self.assertEqual(count, actual, f"perft({node}) start pos")


    def test_perft_6(self):
        b = Board()
        fen = "r4rk1/1pp1qppp/p1np1n2/2b1p1B1/2B1P1b1/P1NP1N2/1PP1QPPP/R4RK1 w - - 0 10"
        self.chess_ffi.load_fen(b, fen)
        node_count = {
            1: 46,
            2: 2079,
            3: 89890,
            4: 3894594,
        }
        for node, count  in node_count.items():
            actual = int(self.chess_ffi._c_perft(b, node))
            self.assertEqual(count, actual, f"perft({node}) start pos")