tokio/tests/enumerate.rs
2019-02-21 11:56:15 -08:00

27 lines
508 B
Rust

extern crate futures;
extern crate tokio;
extern crate tokio_executor;
extern crate tokio_timer;
use futures::sync::mpsc;
use tokio::util::StreamExt;
#[test]
fn enumerate() {
use futures::*;
let (mut tx, rx) = mpsc::channel(1);
std::thread::spawn(|| {
for i in 0..5 {
tx = tx.send(i * 2).wait().unwrap();
}
});
let result = rx.enumerate().collect();
assert_eq!(
result.wait(),
Ok(vec![(0, 0), (1, 2), (2, 4), (3, 6), (4, 8)])
);
}