rust/src/test/run-fail/explicit-fail-msg.rs

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#![allow(dead_assignment)]
#![allow(unused_variable)]

// error-pattern:wooooo
fn main() {
    let mut a = 1i;
    if 1i == 1 { a = 2; }
    fail!(format!("woooo{}", "o"));
}