public void ValidateExistingPolicyTest()
        {
            Dictionary <string, string> policies = new Dictionary <string, string>()
            {
                { "test", "test" }, { "Abc", "abc" }, { "123", "123" }
            };

            SasTokenHelper.GetExistingPolicy <string>(policies, "ABC");
            SasTokenHelper.GetExistingPolicy <string>(policies, "test");
            SasTokenHelper.GetExistingPolicy <string>(policies, "tesT");
            SasTokenHelper.GetExistingPolicy <string>(policies, "123");
            AssertThrows <ArgumentException>(() => SasTokenHelper.GetExistingPolicy <string>(policies, "test1"));
        }
        public void ValidateExistingPolicyWithEmptyPoliciesTest()
        {
            Dictionary <string, string> policies = new Dictionary <string, string>();

            AssertThrows <ArgumentException>(() => SasTokenHelper.GetExistingPolicy <string>(policies, "test1"));
        }