public void PerimeterCount()
        {
            var center    = new Point(0, 0);
            var rectangle = new Task3OOP.Rectangle(center, 4, 5);

            Assert.AreEqual(rectangle.Perimeter, 18);
        }
        public void AreaCount()
        {
            var center    = new Point(0, 0);
            var rectangle = new Task3OOP.Rectangle(center, 4, 5);

            Assert.AreEqual(rectangle.Area, 20);
        }
        public void RectangleCreation()
        {
            var center    = new Point(0, 0);
            var rectangle = new Task3OOP.Rectangle(center, 4, 5);

            Assert.IsNotNull(rectangle);
        }