blob: 051ab8c3a014b70802ed2ca809d3d412998f02d3 [file] [log] [blame]
#![feature(futures_api)]
use futures::executor::block_on;
use futures::future::{self, FutureExt, FutureObj};
use std::sync::mpsc;
use std::thread;
#[test]
fn lots() {
fn do_it(input: (i32, i32)) -> FutureObj<'static, i32> {
let (n, x) = input;
if n == 0 {
FutureObj::new(Box::new(future::ready(x)))
} else {
FutureObj::new(Box::new(future::ready((n - 1, x + n)).then(do_it)))
}
}
let (tx, rx) = mpsc::channel();
thread::spawn(|| {
block_on(do_it((1_000, 0)).map(move |x| tx.send(x).unwrap()))
});
assert_eq!(500_500, rx.recv().unwrap());
}