Parsley.TokenStream.Advance C# (CSharp) Method

        public TokenStream Advance()
        {
            return rest.Value;
        }

        public void AllowsRepeatableTraversalWhileTraversingUnderlyingEnumeratorItemsAtMostOnce()
        {
            var tokens = new TokenStream(Tokens());

            tokens.Current.ShouldEqual(upper, "ABC", 1, 1);
            tokens.Advance().Current.ShouldEqual(lower, "def", 1, 4);
            tokens.Advance().Advance().Current.ShouldEqual(upper, "GHI", 1, 7);
            tokens.Advance().Advance().Advance().Current.ShouldEqual(TokenKind.EndOfInput, "", 1, 10);

            tokens.Advance().ShouldBeSameAs(tokens.Advance());
        }