public void TestAllMovesWithEnPassant()
{
var customBoard = new Dictionary <Square, IPiece>()
{
{ new Square(Files.a, Ranks.five), new Pawn(true) },
{ new Square(Files.b, Ranks.seven), new Pawn(false) }
};
var withPassant = new Custom(customBoard);
var bansPassant = new Custom(customBoard,
new HashSet <MoveType>()
{
MoveType.Passant
});
var rushMove = withPassant.AllMoves(false).Where(m => m.Type == MoveType.Rush).Single();
((IChess)withPassant).Process(rushMove, out IPiece withPiece);
((IChess)bansPassant).Process(rushMove, out IPiece bansPiece);
var allWithMoves = withPassant.AllMoves(true);
var allBansMoves = bansPassant.AllMoves(true);
Assert.Equal(2, allWithMoves.Count());
Assert.Single(allBansMoves);
var passantMove = allWithMoves.Where(m => m.Type == MoveType.Passant).Single();
Assert.True(passantMove.FromSquare.IsSameSquareAs(new Square(Files.a, Ranks.five)));
Assert.True(passantMove.ToSquare.IsSameRankAs(new Square(Files.b, Ranks.six)));
}
public void TestEnPassantWrongTrigger()
{
var customBoard = new Dictionary <Square, IPiece>()
{
{ new Square(Files.a, Ranks.five), new Pawn(true) },
{ new Square(Files.b, Ranks.seven), new Pawn(false) },
{ new Square(Files.h, Ranks.one), new King(true) },
{ new Square(Files.h, Ranks.eight), new King(false) },
};
var chess = new Custom(customBoard);
var rushMove = chess.AllMoves(false).Where(m => m.Type == MoveType.Rush).Single();
var whiteKing = chess.AllMoves(true).Where(m => m.FromSquare.File == Files.h).ToList().First();
var blackKing = chess.AllMoves(false).Where(m => m.FromSquare.File == Files.h).ToList().First();
IPiece piece = null;
// Process a rush move - triggers En Passant
((IChess)chess).Process(rushMove, out piece);
// Process a move with white king - abdicates En Passant
((IChess)chess).Process(whiteKing, out piece);
// Process a move with black king - Rushed pawn on the same square
// This is a wrong trigger, as En Passant was abdicated
((IChess)chess).Process(blackKing, out piece);
Assert.Empty(chess.AllMoves(true).Where(m => m.Type == MoveType.Passant).ToList());
}
public void TestAllMoves(
List <MoveType> allowedMoves,
int whiteMoveCount,
int blackMoveCount
)
{
var banned = Enum.GetValues(typeof(MoveType)).Cast <MoveType>()
.Where(mt => !allowedMoves.Contains(mt)).ToHashSet();
var chess = new Custom(CustomPositionA, banned);
var whiteMoves = chess.AllMoves(true);
var blackMoves = chess.AllMoves(false);
Assert.Equal(whiteMoveCount, whiteMoves.Count());
Assert.Equal(blackMoveCount, blackMoves.Count());
}
