hopefully working nth_back on chunks

Signed-off-by: wizAmit <amitforfriends_dns@yahoo.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/src/libcore/tests/slice.rs b/src/libcore/tests/slice.rs
index 0233b96d3a7..edea405fad7 100644
--- a/src/libcore/tests/slice.rs
+++ b/src/libcore/tests/slice.rs
@@ -139,12 +139,19 @@ fn test_chunks_nth_back() {
     let v: &[i32] = &[0, 1, 2, 3, 4, 5];
     let mut c = v.chunks(2);
     assert_eq!(c.nth_back(1).unwrap(), &[2, 3]);
-    assert_eq!(c.next().unwrap(), &[4, 5]);
+    assert_eq!(c.next().unwrap(), &[0, 1]);
+    assert_eq!(c.next(), None);
 
     let v2: &[i32] = &[0, 1, 2, 3, 4];
     let mut c2 = v2.chunks(3);
     assert_eq!(c2.nth_back(1).unwrap(), &[0, 1]);
     assert_eq!(c2.next(), None);
+    assert_eq!(c2.next_back(), None);
+
+    let v3: &[i32] = &[0, 1, 2, 3, 4];
+    let mut c3 = v3.chunks(10);
+    assert_eq!(c3.nth_back(0).unwrap(), &[0, 1, 2, 3, 4]);
+    assert_eq!(c3.next(), None);
 }
 
 #[test]