From b95bde44913852685b350d468d000453ece9696f Mon Sep 17 00:00:00 2001 From: "@amit.chandra" <@amit.chandra> Date: Fri, 31 May 2019 15:09:17 +0530 Subject: squash of all commits for nth_back on ChunksMut wip nth_back for chunks_mut working chunksmut fixed nth_back for chunksmut Signed-off-by: wizAmit --- src/libcore/tests/slice.rs | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'src/libcore/tests') diff --git a/src/libcore/tests/slice.rs b/src/libcore/tests/slice.rs index 03e65d2fe0b..0519e579c98 100644 --- a/src/libcore/tests/slice.rs +++ b/src/libcore/tests/slice.rs @@ -222,6 +222,28 @@ fn test_chunks_mut_nth() { assert_eq!(c2.next(), None); } +#[test] +fn test_chunks_mut_nth_back() { + let v: &mut [i32] = &mut [0, 1, 2, 3, 4, 5]; + let mut c = v.chunks_mut(2); + assert_eq!(c.nth_back(1).unwrap(), &[2, 3]); + assert_eq!(c.next().unwrap(), &[0, 1]); + + let v1: &mut [i32] = &mut [0, 1, 2, 3, 4]; + let mut c1 = v1.chunks_mut(3); + assert_eq!(c1.nth_back(1).unwrap(), &[0, 1, 2]); + assert_eq!(c1.next(), None); + + let v3: &mut [i32] = &mut [0, 1, 2, 3, 4]; + let mut c3 = v3.chunks_mut(10); + assert_eq!(c3.nth_back(0).unwrap(), &[0, 1, 2, 3, 4]); + assert_eq!(c3.next(), None); + + let v4: &mut [i32] = &mut [0, 1, 2]; + let mut c4 = v4.chunks_mut(10); + assert_eq!(c4.nth_back(1_000_000_000usize), None); +} + #[test] fn test_chunks_mut_last() { let v: &mut [i32] = &mut [0, 1, 2, 3, 4, 5]; -- cgit 1.4.1-3-g733a5