mirror of
https://github.com/urbit/ares.git
synced 2024-11-23 09:06:23 +03:00
220 lines
17 KiB
Rust
220 lines
17 KiB
Rust
use ibig::{ibig, ubig};
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#[test]
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#[allow(clippy::identity_op, clippy::op_ref)]
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fn test_ubig_shl() {
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assert_eq!(ubig!(0) << 17, ubig!(0));
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assert_eq!(&ubig!(0) << 17, ubig!(0));
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assert_eq!(ubig!(0xef) << 0, ubig!(0xef));
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assert_eq!(ubig!(0xef) << 4, ubig!(0xef0));
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assert_eq!(
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ubig!(0xef) << 128,
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ubig!(_0xef00000000000000000000000000000000)
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);
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assert_eq!(
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ubig!(0xef) << 124,
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ubig!(_0xef0000000000000000000000000000000)
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);
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assert_eq!(ubig!(0xef) << 10240, ubig!(_0xef0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000));
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assert_eq!(ubig!(0xef) << 10244, ubig!(_0xef00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000));
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef) << 0,
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ubig!(_0x0123456789abcdef0123456789abcdef)
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);
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef) << 4,
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ubig!(_0x0123456789abcdef0123456789abcdef0)
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);
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef) << 128,
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ubig!(_0x0123456789abcdef0123456789abcdef00000000000000000000000000000000)
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);
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assert_eq!(
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&ubig!(_0x0123456789abcdef0123456789abcdef) << 128,
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ubig!(_0x0123456789abcdef0123456789abcdef00000000000000000000000000000000)
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);
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef) << 124,
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ubig!(_0x0123456789abcdef0123456789abcdef0000000000000000000000000000000)
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);
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assert_eq!(
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&ubig!(_0x0123456789abcdef0123456789abcdef) << 124,
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ubig!(_0x0123456789abcdef0123456789abcdef0000000000000000000000000000000)
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);
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assert_eq!(ubig!(_0x0123456789abcdef0123456789abcdef) << 10240,
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ubig!(_0x0123456789abcdef0123456789abcdef0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000));
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assert_eq!(ubig!(_0x0123456789abcdef0123456789abcdef) << 10244,
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ubig!(_0x0123456789abcdef0123456789abcdef00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000));
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assert_eq!(&ubig!(0xef) << 4, ubig!(0xef0));
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assert_eq!(ubig!(0xef) << &4, ubig!(0xef0));
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assert_eq!(&ubig!(0xef) << &4, ubig!(0xef0));
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}
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#[test]
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#[should_panic]
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fn test_ubig_shl_too_large() {
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let _ = ubig!(1) << usize::MAX;
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}
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#[test]
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#[allow(clippy::op_ref)]
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fn test_ibig_shl() {
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assert_eq!(ibig!(0) << 4, ibig!(0));
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assert_eq!(ibig!(0) << usize::MAX, ibig!(0));
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assert_eq!(ibig!(0xef) << 4, ibig!(0xef0));
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assert_eq!(&ibig!(0xef) << 4, ibig!(0xef0));
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assert_eq!(ibig!(0xef) << &4, ibig!(0xef0));
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assert_eq!(&ibig!(0xef) << &4, ibig!(0xef0));
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}
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#[test]
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fn test_shl_assign() {
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let mut a = ubig!(0xef);
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a <<= 4;
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assert_eq!(a, ubig!(0xef0));
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a <<= &4;
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assert_eq!(a, ubig!(0xef00));
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}
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#[test]
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#[allow(clippy::identity_op, clippy::op_ref)]
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fn test_ubig_shr() {
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assert_eq!(ubig!(0xef) >> 4, ubig!(0xe));
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assert_eq!(ubig!(0xef) >> &4, ubig!(0xe));
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assert_eq!(&ubig!(0xef) >> 4, ubig!(0xe));
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assert_eq!(&ubig!(0xef) >> &4, ubig!(0xe));
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assert_eq!(ubig!(0xef) >> 100, ubig!(0));
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assert_eq!(&ubig!(0xef) >> 100, ubig!(0));
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assert_eq!(ubig!(0xef) >> usize::MAX, ubig!(0));
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assert_eq!(&ubig!(0xef) >> usize::MAX, ubig!(0));
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assert_eq!((ubig!(0xef) << 63) >> 63, ubig!(0xef));
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assert_eq!((ubig!(0xef) << 64) >> 64, ubig!(0xef));
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assert_eq!((ubig!(0xef) << 1023) >> 1023, ubig!(0xef));
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assert_eq!((ubig!(0xef) << 1024) >> 1024, ubig!(0xef));
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assert_eq!(((ubig!(0xef) << 1024) >> 512) >> 512, ubig!(0xef));
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assert_eq!(((ubig!(0xef) << 1024) >> 510) >> 514, ubig!(0xef));
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assert_eq!(&(&(ubig!(0xef) << 1024) >> 512) >> 512, ubig!(0xef));
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assert_eq!(&(&(ubig!(0xef) << 1024) >> 510) >> 514, ubig!(0xef));
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 0,
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef)
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);
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assert_eq!(
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&ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 0,
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef)
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);
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 1000000,
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ubig!(0)
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);
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assert_eq!(
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&ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 1000000,
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ubig!(0)
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);
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 1000001,
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ubig!(0)
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);
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assert_eq!(
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&ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 1000001,
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ubig!(0)
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);
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 4,
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcde)
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);
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assert_eq!(
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&ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 4,
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcde)
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);
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 64,
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ubig!(_0x0123456789abcdef0123456789abcdef)
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);
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assert_eq!(
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&ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 64,
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ubig!(_0x0123456789abcdef0123456789abcdef)
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);
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 124,
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ubig!(_0x123456789abcdef0)
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);
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assert_eq!(
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&ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 124,
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ubig!(_0x123456789abcdef0)
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);
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assert_eq!(
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 128,
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ubig!(_0x123456789abcdef)
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);
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assert_eq!(
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&ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 128,
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ubig!(_0x123456789abcdef)
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);
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assert_eq!(ubig!(0xef) >> &4, ubig!(0xe));
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assert_eq!(&ubig!(0xef) >> 4, ubig!(0xe));
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assert_eq!(&ubig!(0xef) >> &4, ubig!(0xe));
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assert_eq!(
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&ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcdef) >> 4,
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ubig!(_0x0123456789abcdef0123456789abcdef0123456789abcde)
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);
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}
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#[test]
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fn test_ubig_shr_assign() {
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let mut a = ubig!(0xeff);
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a >>= 4;
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assert_eq!(a, ubig!(0xef));
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a >>= &4;
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assert_eq!(a, ubig!(0xe));
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}
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#[test]
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fn test_ibig_shr() {
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let test_cases = [
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(ibig!(0xe0), 4, ibig!(0xe)),
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(ibig!(0xef), 4, ibig!(0xe)),
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(ibig!(0xef), 100, ibig!(0)),
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(ibig!(-0xe0), 4, ibig!(-0xe)),
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(ibig!(-0xef), 4, ibig!(-0xf)),
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(ibig!(-0xef), 100, ibig!(-1)),
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(ibig!(0xff) << 1000, 1000, ibig!(0xff)),
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((ibig!(0xff) << 1000) + ibig!(1), 1000, ibig!(0xff)),
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(ibig!(-0xff) << 1000, 1000, ibig!(-0xff)),
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((ibig!(-0xff) << 1000) - ibig!(1), 1000, ibig!(-0x100)),
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(
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(ibig!(-0xff) << 1000) - (ibig!(1) << 999),
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1000,
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ibig!(-0x100),
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),
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(ibig!(-0xff) << 1000, 2000, ibig!(-1)),
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];
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for (a, b, c) in &test_cases {
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assert_eq!(a >> b, *c);
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assert_eq!(a >> *b, *c);
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assert_eq!(a.clone() >> b, *c);
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assert_eq!(a.clone() >> *b, *c);
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let mut x = a.clone();
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x >>= b;
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assert_eq!(x, *c);
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let mut x = a.clone();
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x >>= *b;
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assert_eq!(x, *c);
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}
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}
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