public void GetPerimeterTest()
        {
            // Arange
            double[]        v = { 5, 4 };
            RectangleFigure rectangleFigure2 = new RectangleFigure(v);
            FigureBuilder   rectangleBuilder = new RectangleBuilder("RectangleFigure");
            Figures         rectangleFigure1 = rectangleBuilder.Create(5, 4);
            double          expected         = 18;
            //Act
            var result = rectangleFigure2.GetPerimeter();

            // Assert
            Assert.AreEqual(result, expected);
        }
        public void ToStringTest()
        {
            // Arange
            double[]        v = { 5, 4 };
            RectangleFigure rectangleFigure = new RectangleFigure(v);
            string          str             = "Прямоугольник с площадью " + rectangleFigure.GetArea() + " и периметром " + rectangleFigure.GetPerimeter();
            var             expected        = str;
            //Act
            var result = rectangleFigure.ToString();

            // Assert
            Assert.AreEqual(result, expected);
        }