rust/src/test/run-pass/log-str.rs

fn main() {
    assert ~"~[1, 2, 3]" == sys::log_str(~[1, 2, 3]);
    assert #fmt["%?/%6?", ~[1, 2, 3], ~"hi"] == ~"~[1, 2, 3]/ ~\"hi\"";
}