rust/library/core/tests/bool.rs
2021-12-15 00:11:23 +08:00

105 lines
2.6 KiB
Rust

use core::cmp::Ordering::{Equal, Greater, Less};
use core::ops::{BitAnd, BitOr, BitXor};
#[test]
fn test_bool() {
assert_eq!(false.eq(&true), false);
assert_eq!(false == false, true);
assert_eq!(false != true, true);
assert_eq!(false.ne(&false), false);
assert_eq!(false.bitand(false), false);
assert_eq!(true.bitand(false), false);
assert_eq!(false.bitand(true), false);
assert_eq!(true.bitand(true), true);
assert_eq!(false & false, false);
assert_eq!(true & false, false);
assert_eq!(false & true, false);
assert_eq!(true & true, true);
assert_eq!(false.bitor(false), false);
assert_eq!(true.bitor(false), true);
assert_eq!(false.bitor(true), true);
assert_eq!(true.bitor(true), true);
assert_eq!(false | false, false);
assert_eq!(true | false, true);
assert_eq!(false | true, true);
assert_eq!(true | true, true);
assert_eq!(false.bitxor(false), false);
assert_eq!(true.bitxor(false), true);
assert_eq!(false.bitxor(true), true);
assert_eq!(true.bitxor(true), false);
assert_eq!(false ^ false, false);
assert_eq!(true ^ false, true);
assert_eq!(false ^ true, true);
assert_eq!(true ^ true, false);
assert_eq!(!true, false);
assert_eq!(!false, true);
let s = false.to_string();
assert_eq!(s, "false");
let s = true.to_string();
assert_eq!(s, "true");
assert!(true > false);
assert!(!(false > true));
assert!(false < true);
assert!(!(true < false));
assert!(false <= false);
assert!(false >= false);
assert!(true <= true);
assert!(true >= true);
assert!(false <= true);
assert!(!(false >= true));
assert!(true >= false);
assert!(!(true <= false));
assert_eq!(true.cmp(&true), Equal);
assert_eq!(false.cmp(&false), Equal);
assert_eq!(true.cmp(&false), Greater);
assert_eq!(false.cmp(&true), Less);
}
#[test]
pub fn test_bool_not() {
if !false {
assert!((true));
} else {
assert!((false));
}
if !true {
assert!((false));
} else {
assert!((true));
}
}
#[test]
fn test_bool_to_option() {
assert_eq!(false.then_some(0), None);
assert_eq!(true.then_some(0), Some(0));
assert_eq!(false.then(|| 0), None);
assert_eq!(true.then(|| 0), Some(0));
const fn zero() -> i32 {
0
}
const A: Option<i32> = false.then_some(0);
const B: Option<i32> = true.then_some(0);
const C: Option<i32> = false.then(zero);
const D: Option<i32> = true.then(zero);
assert_eq!(A, None);
assert_eq!(B, Some(0));
assert_eq!(C, None);
assert_eq!(D, Some(0));
}