public IChessGame Create()
        {
            var piecesFactory   = new PiecesFactory();
            var movementHistory = new MovementHistory();
            var piecePromoter   = new PiecePromoter(movementHistory);
            var castlingMover   = new CastlingMover(movementHistory);
            var enPassantMover  = new EnPassantMover(movementHistory);
            var pieceMover      = new PieceMover(movementHistory, piecePromoter,
                                                 castlingMover, enPassantMover);
            var chessBoard = new ChessBoard(piecesFactory, pieceMover);

            List <IMovement> movements = new();
            var pawnMovement           = new PawnMovement(chessBoard);
            var enPassantMovement      = new EnPassantMovement(chessBoard);
            var kingMovement           = new KingMovement(chessBoard);
            var horizontalMovement     = new HorizontalMovement(chessBoard);
            var verticalMovement       = new VerticalMovement(chessBoard);
            var pdiagonalMovement      = new PositiveDiagonalMovement(chessBoard);
            var ndiagonalMovement      = new NegativeDiagonalMovement(chessBoard);
            var knightMovement         = new KnightMovement(chessBoard);

            movements.Add(pawnMovement);
            movements.Add(enPassantMovement);
            movements.Add(kingMovement);
            movements.Add(horizontalMovement);
            movements.Add(verticalMovement);
            movements.Add(pdiagonalMovement);
            movements.Add(ndiagonalMovement);
            movements.Add(knightMovement);
            var movementComposite = new MovementComposite(movements);

            List <IMovement> movementsWithCastling = new();
            var queensideCastlingMovement          =
                new QueensideCastlingMovement(chessBoard, movementComposite);
            var kingsideCastlingMovement =
                new KingsideCastlingMovement(chessBoard, movementComposite);

            movementsWithCastling.Add(movementComposite);
            movementsWithCastling.Add(queensideCastlingMovement);
            movementsWithCastling.Add(kingsideCastlingMovement);
            var movementCompositeWithCastling = new MovementComposite(movementsWithCastling);

            var promotionDetector = new PromotionDetector(chessBoard);

            var checkDetector = new CheckDetector(chessBoard, movementCompositeWithCastling);

            var legalMovement = new LegalMovement(chessBoard,
                                                  movementCompositeWithCastling, checkDetector);

            var moveValidator = new MoveValidator(chessBoard,
                                                  legalMovement, promotionDetector);

            var gameFinishedDetector = new GameFinishedDetector(checkDetector,
                                                                legalMovement);

            return(new ChessGame(chessBoard, moveValidator,
                                 promotionDetector, gameFinishedDetector, legalMovement));
        }
        public void WhenThereIsBlackPawnEligibleForPromotionReturnsTrue()
        {
            //WK - white king
            //WP - white pawn
            //BK - black king
            //BP - black pawn
            //7             BK
            //6
            //5
            //4
            //3
            //2
            //1             WP
            //0             WK       BP
            //  0  1  2  3  4  5  6  7
            var boardMock     = new Mock <IChessBoard>(MockBehavior.Strict);
            var whiteKingMock = new Mock <IReadOnlyChessPiece>(MockBehavior.Strict);
            var whitePawnMock = new Mock <IReadOnlyChessPiece>(MockBehavior.Strict);
            var blackKingMock = new Mock <IReadOnlyChessPiece>(MockBehavior.Strict);
            var blackPawnMock = new Mock <IReadOnlyChessPiece>(MockBehavior.Strict);

            var whiteKingPosition = new Position(4, 0);
            var whitePawnPosition = new Position(4, 1);
            var blackKingPosition = new Position(4, 7);
            var blackPawnPosition = new Position(7, 0);

            var pieces = new List <IReadOnlyChessPiece>()
            {
                whiteKingMock.Object, whitePawnMock.Object,
                blackKingMock.Object, blackPawnMock.Object
            };

            whiteKingMock
            .SetupGet(k => k.Color)
            .Returns(ChessColor.White);
            whiteKingMock
            .SetupGet(k => k.PieceType)
            .Returns(ChessPieceType.King);
            whiteKingMock
            .SetupGet(k => k.Position)
            .Returns(whiteKingPosition);

            whitePawnMock
            .SetupGet(e => e.Color)
            .Returns(ChessColor.White);
            whitePawnMock
            .SetupGet(k => k.PieceType)
            .Returns(ChessPieceType.Pawn);
            whitePawnMock
            .SetupGet(k => k.Position)
            .Returns(whitePawnPosition);

            blackKingMock
            .SetupGet(k => k.Color)
            .Returns(ChessColor.Black);
            blackKingMock
            .SetupGet(k => k.PieceType)
            .Returns(ChessPieceType.King);
            blackKingMock
            .SetupGet(k => k.Position)
            .Returns(blackKingPosition);

            blackPawnMock
            .SetupGet(e => e.Color)
            .Returns(ChessColor.Black);
            blackPawnMock
            .SetupGet(k => k.PieceType)
            .Returns(ChessPieceType.Pawn);
            blackPawnMock
            .SetupGet(k => k.Position)
            .Returns(blackPawnPosition);

            boardMock
            .SetupGet(b => b.Pieces)
            .Returns(pieces);

            var promotionDetector   = new PromotionDetector(boardMock.Object);
            var isPromotionRequired = promotionDetector.IsPromotionRequired();

            Assert.AreEqual(true, isPromotionRequired);
        }