public void BannedSwapping_NotUsed()
    {
        var sut = new BannedPieceType("s");

        var sequence = new LinkedList <ISquarePiece>();

        sequence.AddLast(CreatePiece(PieceTypes.Rainbow));
        sequence.AddLast(CreatePiece(PieceTypes.ThreePoints));
        sequence.AddLast(CreatePiece(PieceTypes.FourPoints));
        sut.SequenceCompleted(sequence.ToArray());

        Assert.IsFalse(sut.ViolatedRestriction());
    }
    public void BannedRainbow_Used()
    {
        var sut = new BannedPieceType("r");

        var sequence = new LinkedList <ISquarePiece>();

        sequence.AddLast(CreatePiece(PieceTypes.Normal));
        sequence.AddLast(CreatePiece(PieceTypes.Rainbow));
        sequence.AddLast(CreatePiece(PieceTypes.Normal));
        sut.SequenceCompleted(sequence.ToArray());

        Assert.IsTrue(sut.ViolatedRestriction());
    }