public void RedditTestCase2()
{
const int x = 4;
const int y = 2;
int output = PascalTriangleCalculator.GetValueFromCoOrdinates(x, y);
Assert.AreEqual(3, output);
}
public void CanHandleInvalidInput()
{
Assert.Throws <ArgumentOutOfRangeException>(() => PascalTriangleCalculator.GetValueFromCoOrdinates(1, 19));
}