public static int CalculateArea(Square s)
{
return s._height*s._height;
}
public void fourForSquare()
{
var result = new Square { _height = 4};
Assert.AreEqual(16, AreaCalculator.CalculateArea(result));
}
private static void FillSquare(int a, Square square)
{
square.A = a;
Console.WriteLine($"{a} * {a} = {square.Area}");
}