diff options
Diffstat (limited to 'src/libcore/num/int_macros.rs')
| -rw-r--r-- | src/libcore/num/int_macros.rs | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/src/libcore/num/int_macros.rs b/src/libcore/num/int_macros.rs index ef10c9abe11..ff0494725f8 100644 --- a/src/libcore/num/int_macros.rs +++ b/src/libcore/num/int_macros.rs @@ -32,152 +32,4 @@ pub static MIN: $T = (-1 as $T) << (BITS - 1); #[unstable] pub static MAX: $T = !MIN; -#[cfg(test)] -mod tests { - use prelude::*; - use super::*; - - use int; - use num; - use num::CheckedDiv; - - #[test] - fn test_overflows() { - assert!(MAX > 0); - assert!(MIN <= 0); - assert!(MIN + MAX + 1 == 0); - } - - #[test] - fn test_num() { - num::test_num(10 as $T, 2 as $T); - } - - #[test] - pub fn test_abs() { - assert!((1 as $T).abs() == 1 as $T); - assert!((0 as $T).abs() == 0 as $T); - assert!((-1 as $T).abs() == 1 as $T); - } - - #[test] - fn test_abs_sub() { - assert!((-1 as $T).abs_sub(&(1 as $T)) == 0 as $T); - assert!((1 as $T).abs_sub(&(1 as $T)) == 0 as $T); - assert!((1 as $T).abs_sub(&(0 as $T)) == 1 as $T); - assert!((1 as $T).abs_sub(&(-1 as $T)) == 2 as $T); - } - - #[test] - fn test_signum() { - assert!((1 as $T).signum() == 1 as $T); - assert!((0 as $T).signum() == 0 as $T); - assert!((-0 as $T).signum() == 0 as $T); - assert!((-1 as $T).signum() == -1 as $T); - } - - #[test] - fn test_is_positive() { - assert!((1 as $T).is_positive()); - assert!(!(0 as $T).is_positive()); - assert!(!(-0 as $T).is_positive()); - assert!(!(-1 as $T).is_positive()); - } - - #[test] - fn test_is_negative() { - assert!(!(1 as $T).is_negative()); - assert!(!(0 as $T).is_negative()); - assert!(!(-0 as $T).is_negative()); - assert!((-1 as $T).is_negative()); - } - - #[test] - fn test_bitwise_operators() { - assert!(0b1110 as $T == (0b1100 as $T).bitor(&(0b1010 as $T))); - assert!(0b1000 as $T == (0b1100 as $T).bitand(&(0b1010 as $T))); - assert!(0b0110 as $T == (0b1100 as $T).bitxor(&(0b1010 as $T))); - assert!(0b1110 as $T == (0b0111 as $T).shl(&(1 as $T))); - assert!(0b0111 as $T == (0b1110 as $T).shr(&(1 as $T))); - assert!(-(0b11 as $T) - (1 as $T) == (0b11 as $T).not()); - } - - static A: $T = 0b0101100; - static B: $T = 0b0100001; - static C: $T = 0b1111001; - - static _0: $T = 0; - static _1: $T = !0; - - #[test] - fn test_count_ones() { - assert!(A.count_ones() == 3); - assert!(B.count_ones() == 2); - assert!(C.count_ones() == 5); - } - - #[test] - fn test_count_zeros() { - assert!(A.count_zeros() == BITS as $T - 3); - assert!(B.count_zeros() == BITS as $T - 2); - assert!(C.count_zeros() == BITS as $T - 5); - } - - #[test] - fn test_rotate() { - assert_eq!(A.rotate_left(6).rotate_right(2).rotate_right(4), A); - assert_eq!(B.rotate_left(3).rotate_left(2).rotate_right(5), B); - assert_eq!(C.rotate_left(6).rotate_right(2).rotate_right(4), C); - - // Rotating these should make no difference - // - // We test using 124 bits because to ensure that overlong bit shifts do - // not cause undefined behaviour. See #10183. - assert_eq!(_0.rotate_left(124), _0); - assert_eq!(_1.rotate_left(124), _1); - assert_eq!(_0.rotate_right(124), _0); - assert_eq!(_1.rotate_right(124), _1); - } - - #[test] - fn test_swap_bytes() { - assert_eq!(A.swap_bytes().swap_bytes(), A); - assert_eq!(B.swap_bytes().swap_bytes(), B); - assert_eq!(C.swap_bytes().swap_bytes(), C); - - // Swapping these should make no difference - assert_eq!(_0.swap_bytes(), _0); - assert_eq!(_1.swap_bytes(), _1); - } - - #[test] - fn test_le() { - assert_eq!(Int::from_le(A.to_le()), A); - assert_eq!(Int::from_le(B.to_le()), B); - assert_eq!(Int::from_le(C.to_le()), C); - assert_eq!(Int::from_le(_0), _0); - assert_eq!(Int::from_le(_1), _1); - assert_eq!(_0.to_le(), _0); - assert_eq!(_1.to_le(), _1); - } - - #[test] - fn test_be() { - assert_eq!(Int::from_be(A.to_be()), A); - assert_eq!(Int::from_be(B.to_be()), B); - assert_eq!(Int::from_be(C.to_be()), C); - assert_eq!(Int::from_be(_0), _0); - assert_eq!(Int::from_be(_1), _1); - assert_eq!(_0.to_be(), _0); - assert_eq!(_1.to_be(), _1); - } - - #[test] - fn test_signed_checked_div() { - assert!(10i.checked_div(&2) == Some(5)); - assert!(5i.checked_div(&0) == None); - assert!(int::MIN.checked_div(&-1) == None); - } -} - )) |
