From c0248c0839cfdf5b7030f4191ea7aed0981b9e4e Mon Sep 17 00:00:00 2001 From: Samuel Neves Date: Wed, 2 Jul 2014 04:58:23 +0100 Subject: Fix rotate_{left, right} for multiple of bitsize rotation amounts Add additional rotation tests --- src/libcoretest/num/int_macros.rs | 9 +++++++++ src/libcoretest/num/uint_macros.rs | 9 +++++++++ 2 files changed, 18 insertions(+) (limited to 'src/libcoretest/num') diff --git a/src/libcoretest/num/int_macros.rs b/src/libcoretest/num/int_macros.rs index 940b036ca90..d078b514085 100644 --- a/src/libcoretest/num/int_macros.rs +++ b/src/libcoretest/num/int_macros.rs @@ -114,6 +114,15 @@ mod tests { assert_eq!(_1.rotate_left(124), _1); assert_eq!(_0.rotate_right(124), _0); assert_eq!(_1.rotate_right(124), _1); + + // Rotating by 0 should have no effect + assert_eq!(A.rotate_left(0), A); + assert_eq!(B.rotate_left(0), B); + assert_eq!(C.rotate_left(0), C); + // Rotating by a multiple of word size should also have no effect + assert_eq!(A.rotate_left(64), A); + assert_eq!(B.rotate_left(64), B); + assert_eq!(C.rotate_left(64), C); } #[test] diff --git a/src/libcoretest/num/uint_macros.rs b/src/libcoretest/num/uint_macros.rs index 2272af67daf..aefaa90520e 100644 --- a/src/libcoretest/num/uint_macros.rs +++ b/src/libcoretest/num/uint_macros.rs @@ -74,6 +74,15 @@ mod tests { assert_eq!(_1.rotate_left(124), _1); assert_eq!(_0.rotate_right(124), _0); assert_eq!(_1.rotate_right(124), _1); + + // Rotating by 0 should have no effect + assert_eq!(A.rotate_left(0), A); + assert_eq!(B.rotate_left(0), B); + assert_eq!(C.rotate_left(0), C); + // Rotating by a multiple of word size should also have no effect + assert_eq!(A.rotate_left(64), A); + assert_eq!(B.rotate_left(64), B); + assert_eq!(C.rotate_left(64), C); } #[test] -- cgit 1.4.1-3-g733a5