assert_eq!(iter.try_for_each(Err), Err(2));
assert_eq!(iter.try_for_each(Err), Ok(()));
}
+
+#[test]
+fn test_byref_take_consumed_items() {
+ let mut inner = 10..90;
+
+ let mut count = 0;
+ inner.by_ref().take(0).for_each(|_| count += 1);
+ assert_eq!(count, 0);
+ assert_eq!(inner, 10..90);
+
+ let mut count = 0;
+ inner.by_ref().take(10).for_each(|_| count += 1);
+ assert_eq!(count, 10);
+ assert_eq!(inner, 20..90);
+
+ let mut count = 0;
+ inner.by_ref().take(100).for_each(|_| count += 1);
+ assert_eq!(count, 70);
+ assert_eq!(inner, 90..90);
+}