// Copyright 2013-2015 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. use std::fmt; #[test] fn test_format() { let s = fmt::format(format_args!("Hello, {}!", "world")); assert_eq!(s, "Hello, world!"); }