diff options
Diffstat (limited to 'src/libcore/tests/nonzero.rs')
| -rw-r--r-- | src/libcore/tests/nonzero.rs | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/libcore/tests/nonzero.rs b/src/libcore/tests/nonzero.rs new file mode 100644 index 00000000000..7a367ddeec8 --- /dev/null +++ b/src/libcore/tests/nonzero.rs @@ -0,0 +1,100 @@ +// Copyright 2012-2014 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::nonzero::NonZero; +use core::option::Option; +use core::option::Option::{Some, None}; +use std::mem::size_of; + +#[test] +fn test_create_nonzero_instance() { + let _a = unsafe { + NonZero::new(21) + }; +} + +#[test] +fn test_size_nonzero_in_option() { + assert_eq!(size_of::<NonZero<u32>>(), size_of::<Option<NonZero<u32>>>()); +} + +#[test] +fn test_match_on_nonzero_option() { + let a = Some(unsafe { + NonZero::new(42) + }); + match a { + Some(val) => assert_eq!(*val, 42), + None => panic!("unexpected None while matching on Some(NonZero(_))") + } + + match unsafe { Some(NonZero::new(43)) } { + Some(val) => assert_eq!(*val, 43), + None => panic!("unexpected None while matching on Some(NonZero(_))") + } +} + +#[test] +fn test_match_option_empty_vec() { + let a: Option<Vec<isize>> = Some(vec![]); + match a { + None => panic!("unexpected None while matching on Some(vec![])"), + _ => {} + } +} + +#[test] +fn test_match_option_vec() { + let a = Some(vec![1, 2, 3, 4]); + match a { + Some(v) => assert_eq!(v, [1, 2, 3, 4]), + None => panic!("unexpected None while matching on Some(vec![1, 2, 3, 4])") + } +} + +#[test] +fn test_match_option_rc() { + use std::rc::Rc; + + let five = Rc::new(5); + match Some(five) { + Some(r) => assert_eq!(*r, 5), + None => panic!("unexpected None while matching on Some(Rc::new(5))") + } +} + +#[test] +fn test_match_option_arc() { + use std::sync::Arc; + + let five = Arc::new(5); + match Some(five) { + Some(a) => assert_eq!(*a, 5), + None => panic!("unexpected None while matching on Some(Arc::new(5))") + } +} + +#[test] +fn test_match_option_empty_string() { + let a = Some(String::new()); + match a { + None => panic!("unexpected None while matching on Some(String::new())"), + _ => {} + } +} + +#[test] +fn test_match_option_string() { + let five = "Five".to_string(); + match Some(five) { + Some(s) => assert_eq!(s, "Five"), + None => panic!("unexpected None while matching on Some(String { ... })") + } +} |
