public void TestAdd() { Assert.AreEqual("10a", DynamicUtils.BinaryOperation_Add(10, "a")); Assert.AreEqual("a", DynamicUtils.BinaryOperation_Add(null, "a")); Assert.AreEqual("a", DynamicUtils.BinaryOperation_Add("a", null)); Assert.AreEqual(null, DynamicUtils.BinaryOperation_Add(null, null)); Assert.AreEqual(21.5, DynamicUtils.BinaryOperation_Add(10, 11.5)); }