public void isValidNameTest()
        {
            UserVariable target = new UserVariable();

            Assert.AreEqual(true, target.isValidName("name"));
            Assert.AreEqual(true, target.isValidName("n"));
            Assert.AreEqual(true, target.isValidName("name0"));
            Assert.AreEqual(true, target.isValidName("name_n"));
            Assert.AreEqual(false, target.isValidName("0name"));
            Assert.AreEqual(false, target.isValidName(""));
            Assert.AreEqual(false, target.isValidName("na%me"));
            Assert.AreEqual(false, target.isValidName("name "));
        }