public void MatrixConstructorShouldCreateValidMatrix()
{
Matrix matrix = new Matrix(3, 3);
var pos = new Position(2, 2);
matrix[pos] = 5;
Assert.AreEqual(5, matrix[pos]);
Assert.AreEqual(0, matrix[new Position(2, 1)]);
}
internal static void PrintMatrix(Matrix matrix)
{
for (int row = 0; row < matrix.GetLength(0); row++)
{
for (int col = 0; col < matrix.GetLength(1); col++)
{
var pos = new Position(row, col);
Console.Write(string.Format("{0,5}", matrix[pos]));
}
Console.WriteLine();
}
}
public void MatrixGeneratorCheckIfFreeNeighbourCellExistsShouldWorkIfFreeNeighbourCellDeosNotExistsAndPositionIsAtTheBorder()
{
var arr = new int[,] {
{1,1,1,1,1},
{1,0,1,1,1},
{1,1,1,1,1}
};
var matrix = new Matrix(3, 5);
matrix.MatrixArray = arr;
var position = new Position(0, 4);
var cellExist = matrix.CheckIfAnyNeighbourCellContainsValue(position, 0);
Assert.IsFalse(cellExist);
}
public void IsPositionValidShouldReturnTrueOnValidPosition()
{
var arr = new int[,] {
{1,1,1,1,0},
{1,1,1,1,1},
{1,1,1,0,0}
};
var matrix = new Matrix(3, 5);
matrix.MatrixArray = arr;
var position = new Position(0, 4);
Assert.IsTrue(matrix.IsPositionValid(position), "0 4");
position = new Position(2, 4);
Assert.IsTrue(matrix.IsPositionValid(position), "2 4");
position = new Position(2, 3);
Assert.IsTrue(matrix.IsPositionValid(position), "2 3");
}
public void IsPositionValidShouldReturnFalseOnInvalidPosition()
{
var arr = new int[,] {
{1,1,1,1,1},
{1,1,1,1,1},
{1,1,1,1,1}
};
var matrix = new Matrix(3, 5);
matrix.MatrixArray = arr;
var position = new Position(-2, 4);
Assert.IsFalse(matrix.IsPositionValid(position));
position = new Position(2, -5);
Assert.IsFalse(matrix.IsPositionValid(position));
position = new Position(-1, 3);
Assert.IsFalse(matrix.IsPositionValid(position));
}
public IPosition getNeighbourPosition(Direction dir)
{
IPosition newPosition = new Position(this.Row, this.Col);
switch (dir)
{
case Direction.DownRight:
newPosition.Row++;
newPosition.Col++;
break;
case Direction.Down:
newPosition.Row++;
break;
case Direction.DownLeft:
newPosition.Row++;
newPosition.Col--;
break;
case Direction.Left:
newPosition.Col--;
break;
case Direction.UpLeft:
newPosition.Row--;
newPosition.Col--;
break;
case Direction.Up:
newPosition.Row--;
break;
case Direction.UpRight:
newPosition.Row--;
newPosition.Col++;
break;
case Direction.Right:
newPosition.Col++;
break;
default:
throw new ArgumentException("Invalid direction.");
}
return newPosition;
}
