public void New_Grid_Has_Correct_Number_Of_Rows(int size)
{
// Given a size
// When a new grid is created
ProductGrid productGrid = new ProductGrid(size);
// Then the number of rows should equal the size
Assert.AreEqual(productGrid.Cells.GetLength(0), size);
}
public void New_Grid_Returns_Correct_Number_Of_Cells(int size)
{
// Given a size
// When a new grid is created
ProductGrid productGrid = new ProductGrid(size);
// Then the number of cells should be the square of the size
int expectedNumberOfCells = size * size;
Assert.AreEqual(productGrid.Cells.Length, expectedNumberOfCells);
}
public void First_Row_In_Grid_Contains_Primes(int size, int[] expectedPrimes)
{
// Given a grid
ProductGrid productGrid = new ProductGrid(size);
// When the first row is extracted
int[] actualValues = Enumerable.Range(0, size).Select(index => productGrid.Cells[0, index]).ToArray();
// Then they should be sequential primes
Assert.AreEqual(actualValues, expectedPrimes);
}
public void Non_Header_Cells_Are_Multiples_Of_Their_First_Row_And_Column(int size, int rowIndex, int columnIndex)
{
// Given a grid
ProductGrid productGrid = new ProductGrid(size);
// When a particular cell is extracted
int actualCellValue = productGrid.Cells[rowIndex, columnIndex];
// Then it is a product of the first column and row
int expectedValue = productGrid.Cells[0, columnIndex] * productGrid.Cells[rowIndex, 0];
Assert.AreEqual(expectedValue, actualCellValue);
}
static void Main(string[] args)
{
int size;
while (true)
{
Console.WriteLine();
Console.WriteLine("Type a size for the grid and press return, 0 or non number to exit");
int.TryParse(Console.ReadLine(), out size);
Console.WriteLine();
if (size < 1) break;
var productGrid = new ProductGrid(size);
for (int row = 0; row < productGrid.Cells.GetLength(0); row++)
{
for (int column = 0; column < productGrid.Cells.GetLength(1); column++)
{
Console.Write(productGrid.Cells[row, column].ToString().PadLeft(8));
}
Console.WriteLine();
}
}
}
