public void Random_GenerateString_Standard()
        {
            RandomOrgClient proxy = new RandomOrgClient(Constants.ApiKey);
            string result = proxy.GetString(10);

            Assert.IsTrue(result.ToCharArray().Except(proxy.AllowedStringCharacters).Count() == 0);
        }
        public void Random_GenerateString_Specific()
        {
            RandomOrgClient proxy = new RandomOrgClient(Constants.ApiKey);
            char[] allowed = new char[] { '1', '2', '3' };
            string result = proxy.GetString(10, allowed);

            Assert.IsTrue(result.ToCharArray().Except(allowed).Count() == 0);
        }