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1a4d82fc | 1 | // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT |
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2 | // file at the top-level directory of this distribution and at |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
85aaf69f | 11 | #[derive(Clone, Debug)] |
223e47cc | 12 | enum foo { |
c34b1796 | 13 | a(usize), |
1a4d82fc | 14 | b(String), |
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15 | } |
16 | ||
85aaf69f | 17 | fn check_log<T: std::fmt::Debug>(exp: String, v: T) { |
1a4d82fc | 18 | assert_eq!(exp, format!("{:?}", v)); |
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19 | } |
20 | ||
21 | pub fn main() { | |
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22 | let mut x = Some(foo::a(22)); |
23 | let exp = "Some(a(22))".to_string(); | |
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24 | let act = format!("{:?}", x); |
25 | assert_eq!(act, exp); | |
26 | check_log(exp, x); | |
27 | ||
28 | x = None; | |
29 | let exp = "None".to_string(); | |
30 | let act = format!("{:?}", x); | |
31 | assert_eq!(act, exp); | |
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32 | check_log(exp, x); |
33 | } |