public void Build_with_Value()
        {
            string xml = @"<Root>value</Root>";

            builder = new XmlBuilder("Root");
            builder.AddValue("value");
            Assert.AreEqual(xml, builder.Build().ToString());
        }
        public void TestAddBelowWithAttributeAndValueToTree()
        {
            string expectedResult = "<orders><order number='1234' quantity='20'>" +
                                    "<item number='x1786'>Car Door</item></order></orders>";


            XmlBuilder builder = new XmlBuilder("orders");

            builder.AddBelow("order");
            builder.AddAttribute("number", "1234");
            builder.AddAttribute("quantity", "20");
            builder.AddBelow("item");
            builder.AddAttribute("number", "x1786");
            builder.AddValue("Car Door");

            Assert.Equal(builder.ToString(), expectedResult);
        }