public void GetBoxNumber_Test()
{
for (int row = 0; row < 9; row++)
{
for (int col = 0; col < 9; col++)
{
int box = SudokuGrid.GetBoxNumber(col, row);
if (col <= 2 && row <= 2)
{
Assert.AreEqual(0, box);
}
else if (col >= 3 && col <= 5 && row <= 2)
{
Assert.AreEqual(1, box);
}
else if (col >= 6 && row <= 2)
{
Assert.AreEqual(2, box);
}
else if (col <= 2 && row >= 3 && row <= 5)
{
Assert.AreEqual(3, box);
}
else if (col >= 3 && col <= 5 && row >= 3 && row <= 5)
{
Assert.AreEqual(4, box);
}
else if (col >= 6 && row >= 3 && row <= 5)
{
Assert.AreEqual(5, box);
}
else if (col <= 2 && row >= 6)
{
Assert.AreEqual(6, box);
}
else if (col >= 3 && col <= 5 && row >= 6)
{
Assert.AreEqual(7, box);
}
else
{
Assert.AreEqual(8, box);
}
}
}
}