rust/src/libcoretest/finally.rs
Steven Fackler 1ed646eaf7 Extract tests from libcore to a separate crate
Libcore's test infrastructure is complicated by the fact that many lang
items are defined in the crate. The current approach (realcore/realstd
imports) is hacky and hard to work with (tests inside of core::cmp
haven't been run for months!).

Moving tests to a separate crate does mean that they can only test the
public API of libcore, but I don't feel that that is too much of an
issue. The only tests that I had to get rid of were some checking the
various numeric formatters, but those are also exercised through normal
format! calls in other tests.
2014-06-29 15:57:21 -07:00

60 lines
1.4 KiB
Rust

// Copyright 2014 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.
use core::finally::{try_finally, Finally};
use std::task::failing;
#[test]
fn test_success() {
let mut i = 0i;
try_finally(
&mut i, (),
|i, ()| {
*i = 10;
},
|i| {
assert!(!failing());
assert_eq!(*i, 10);
*i = 20;
});
assert_eq!(i, 20);
}
#[test]
#[should_fail]
fn test_fail() {
let mut i = 0i;
try_finally(
&mut i, (),
|i, ()| {
*i = 10;
fail!();
},
|i| {
assert!(failing());
assert_eq!(*i, 10);
})
}
#[test]
fn test_retval() {
let mut closure: || -> int = || 10;
let i = closure.finally(|| { });
assert_eq!(i, 10);
}
#[test]
fn test_compact() {
fn do_some_fallible_work() {}
fn but_always_run_this_function() { }
let mut f = do_some_fallible_work;
f.finally(but_always_run_this_function);
}