// Copyright 2017 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.

// compile-flags: --test

fn main() {}

#[cfg(test)]
mod tests {
    #[test]
    fn it_works() -> Result<(), ()> {
    //~^ ERROR functions used as tests must have signature fn() -> ()
        Ok(())
    }
}