public void Should_find_promotions(string sanText, string expectedMoveText, Colours toPlay, ChessPieceName promotionPiece)
{
var builder = new ChessBoardBuilder()
.Board(" k " +
" P" +
" " +
" " +
" " +
" " +
" " +
" K "
);
var game = ChessFactory.CustomChessGame(builder.ToGameSetup(), toPlay);
var move = new SanMoveFinder(game.BoardState)
.Find(sanText.ToSan(), toPlay);
Assert.NotNull(move, "No move found!");
Assert.That(move.ToChessCoords(), Is.EqualTo(expectedMoveText));
var moveExtraData = move.ExtraData;
Assert.NotNull(moveExtraData);
var data = ChessFactory.MoveExtraData(toPlay, promotionPiece);
Assert.That(move.ToChessCoords(), Is.EqualTo(expectedMoveText));
Assert.That(data, Is.EqualTo(moveExtraData), $"Unexpected promotion: {moveExtraData}");
}
public void Regression_king_side_castle_bug()
{
var board = new ChessBoardBuilder()
.Board(".rbqkbnr" +
"pppppppp" +
"n......." +
"........" +
"........" +
".....NPB" +
"PPPPPP.P" +
"RNBQK..R"
);
var buildGame = ChessFactory.CustomChessGame(board.ToGameSetup(), Colours.White);
var boardState = buildGame.BoardState;
var msg = buildGame.Move(_whiteKingSideCastle.ToChessCoords());
Assert.IsEmpty(msg, msg);
Assert.False(boardState.IsEmpty("G1".ToBoardLocation()), $"No item at G1");
var king = boardState.GetItem("G1".ToBoardLocation());
Assert.That(king.Item.EntityType, Is.EqualTo((int)ChessPieceName.King), "king not moved correctly");
Assert.NotNull(boardState.GetItem("F1".ToBoardLocation()), $"No item at F1");
var rook = boardState.GetItem("F1".ToBoardLocation());
Assert.That(rook.Item.EntityType, Is.EqualTo((int)ChessPieceName.Rook), "castle not moved correctly");
}
public void Spike_debugging_a_move_problem()
{
var board = new ChessBoardBuilder()
// .X(8, "rnbqkbnr")
// .Y(ChessFile.A, "RP pr")
// .At(ChessFile.D, 2, 'P')
// .FromChessGame(new ChessGame())
.Board("r.bq.rk." +
"...nbppp" +
"p.pp.n.." +
".p..p..." +
"..PPP..." +
".B...N.P" +
"PP...PP." +
"RNBQR.K.")
;
var game = ChessFactory.CustomChessGame(board.ToGameSetup(), Colours.White);
// var game = new ChessGame(NullLogger<ChessGame>.Instance, _chessBoardEngineProvider, board.ToGameSetup(), Colours.White);
// TODO: Fix this bug, pawn can't take pawn, something to do with
// enpassant i guess based on pawn positions
var msg = game.Move("c4b5");
msg.ShouldBeEmpty();
}
public void Should_find_simple_check_condition()
{
var builder = new ChessBoardBuilder()
.Board("R k " +
" " +
" " +
" " +
" " +
" " +
" " +
" K R"
);
var game = ChessFactory.CustomChessGame(builder.ToGameSetup(), Colours.Black);
Assert.That(game.CheckState, Is.EqualTo(GameCheckState.BlackInCheck));
}
public void SetUp()
{
var board = new ChessBoardBuilder()
.Board(" qk r" +
" " +
"Pe Pb PP" +
" " +
" " +
" " +
" " +
" K R"
);
_boardState = ChessFactory.CustomChessGame(board.ToGameSetup()).BoardState;
_validator = new EnPassantTakeValidator(new ChessValidationSteps());
}
public void ValidateMove_fails_if_path_under_attack()
{
var board = new ChessBoardBuilder()
.Board(" k " +
" " +
" " +
" " +
" r " +
" " +
" " +
" K R"
);
var boardState = ChessFactory.CustomChessGame(board.ToGameSetup(), Colours.White).BoardState;
Assert.False(_validator.ValidateMove(_whiteKingSideCastle, boardState), "Invalid king side castle move allowed");
}
public void ValidateMove_fails_unless_king_is_in_starting_position()
{
var board = new ChessBoardBuilder()
.Board(" k " +
" " +
" " +
" " +
" " +
" " +
" " +
" K R"
);
var boardState = ChessFactory.CustomChessGame(board.ToGameSetup(), Colours.White).BoardState;
Assert.False(_validator.ValidateMove(_whiteInvalidKingCastle, boardState), "Invalid castle move allowed");
}
public void Should_find_castle_moves(string sanText, string expectedMoveText, Colours toPlay)
{
var builder = new ChessBoardBuilder()
.Board("r k r" +
" " +
" " +
" " +
" " +
" " +
" " +
"R K R"
);
var game = ChessFactory.CustomChessGame(builder.ToGameSetup(), toPlay);
var move = new SanMoveFinder(game.BoardState)
.Find(sanText.ToSan(), toPlay);
Assert.NotNull(move, "No move found!");
Assert.That(move.ToChessCoords(), Is.EqualTo(expectedMoveText));
}
public void Should_not_find_move_that_leaves_king_in_check()
{
var board = new ChessBoardBuilder()
.Board(" k " +
" " +
" " +
" p " +
" PQ " +
" " +
" " +
" K "
);
var game = ChessFactory.CustomChessGame(board.ToGameSetup(), Colours.Black);
var blockedPieceLocation = "E5".ToBoardLocation();
var blockedPiece = game.BoardState.GetItem(blockedPieceLocation);
Assert.False(blockedPiece.Paths.ContainsMoveTo("D4".ToBoardLocation()),
$"Pawn at E5 should NOT be able to move D4");
}
public void Should_put_plus_on_end_of_moves_that_cause_check()
{
// TODO: Better way to check this, than using a full board.
var builder = new ChessBoardBuilder()
.Board("....rrk." +
".b...pp." +
".n...q.p" +
"..p.N..." +
".pB....." +
".......P" +
"PP...PP." +
"R..QR.K."
);
var game = ChessFactory.CustomChessGame(builder.ToGameSetup());
var from = "C4".ToBoardLocation();
var piece = game.BoardState.GetItem(from);
var boardMove = piece.Paths.FindMove(from, "f7".ToBoardLocation());
var san = StandardAlgebraicNotation.ParseFromGameMove(game.BoardState, boardMove, true);
san.ToNotation().ShouldBe("Bxf7+");
}
public void Regression_Kings_cant_move_next_to_each_other_black()
{
var board = new ChessBoardBuilder()
.Board(" K k " +
" " +
" " +
" " +
" " +
" " +
" " +
" "
);
var boardState = ChessFactory.CustomChessGame(board.ToGameSetup(), Colours.Black).BoardState;
var from = "e8".ToBoardLocation();
var to = "d8".ToBoardLocation();
var move = BoardMove.Create(from, to, (int)ChessMoveTypes.KingMove);
var item = boardState.GetItem(from);
Assert.False(item.Paths.ContainsMoveTo(to), "kings cannot move next to each other");
}