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use futures::executor::block_on_stream;
use futures::stream::{self, StreamExt};
#[test]
fn panic_in_the_middle_of_the_stream() {
let stream = stream::iter(vec![Some(10), None, Some(11)]);
// panic on second element
let stream_panicking = stream.map(|o| o.unwrap());
let mut iter = block_on_stream(stream_panicking.catch_unwind());
assert_eq!(10, iter.next().unwrap().ok().unwrap());
assert!(iter.next().unwrap().is_err());
assert!(iter.next().is_none());
}
#[test]
fn no_panic() {
let stream = stream::iter(vec![10, 11, 12]);
let mut iter = block_on_stream(stream.catch_unwind());
assert_eq!(10, iter.next().unwrap().ok().unwrap());
assert_eq!(11, iter.next().unwrap().ok().unwrap());
assert_eq!(12, iter.next().unwrap().ok().unwrap());
assert!(iter.next().is_none());
}