assert_eq!(c2.next(), None);
}
+#[test]
+fn test_chunks_exact_nth_back() {
+ let v: &[i32] = &[0, 1, 2, 3, 4, 5];
+ let mut c = v.chunks_exact(2);
+ assert_eq!(c.nth_back(1).unwrap(), &[2, 3]);
+ 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_exact(3);
+ assert_eq!(c2.nth_back(0).unwrap(), &[0, 1, 2]);
+ assert_eq!(c2.next(), None);
+ assert_eq!(c2.next_back(), None);
+
+ let v3: &[i32] = &[0, 1, 2, 3, 4];
+ let mut c3 = v3.chunks_exact(10);
+ assert_eq!(c3.nth_back(0), None);
+}
+
#[test]
fn test_chunks_exact_last() {
let v: &[i32] = &[0, 1, 2, 3, 4, 5];