public void TestSquareIsAt()
{
Square _square = new Square ();
//Defaulted to base constructor x, y, width, height = 25
Assert.IsTrue ( _square.IsAt (SwinGame.PointAt (25, 25) ));
Assert.IsTrue ( _square.IsAt (SwinGame.PointAt (44, 44) ));
Assert.IsFalse ( _square.IsAt (SwinGame.PointAt (90, 44) ));
Assert.IsFalse ( _square.IsAt (SwinGame.PointAt (10, 30) ));
}