73 lines
1.6 KiB
Rust
73 lines
1.6 KiB
Rust
#![allow(clippy::blacklisted_name)]
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use tokio::sync::oneshot;
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use tokio_test::{assert_pending, assert_ready, task};
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#[tokio::test]
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async fn sync_one_lit_expr_comma() {
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let foo = tokio::join!(async { 1 },);
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assert_eq!(foo, (1,));
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}
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#[tokio::test]
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async fn sync_one_lit_expr_no_comma() {
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let foo = tokio::join!(async { 1 });
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assert_eq!(foo, (1,));
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}
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#[tokio::test]
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async fn sync_two_lit_expr_comma() {
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let foo = tokio::join!(async { 1 }, async { 2 },);
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assert_eq!(foo, (1, 2));
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}
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#[tokio::test]
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async fn sync_two_lit_expr_no_comma() {
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let foo = tokio::join!(async { 1 }, async { 2 });
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assert_eq!(foo, (1, 2));
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}
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#[tokio::test]
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async fn two_await() {
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let (tx1, rx1) = oneshot::channel::<&str>();
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let (tx2, rx2) = oneshot::channel::<u32>();
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let mut join = task::spawn(async {
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tokio::join!(async { rx1.await.unwrap() }, async { rx2.await.unwrap() })
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});
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assert_pending!(join.poll());
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tx2.send(123).unwrap();
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assert!(join.is_woken());
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assert_pending!(join.poll());
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tx1.send("hello").unwrap();
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assert!(join.is_woken());
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let res = assert_ready!(join.poll());
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assert_eq!(("hello", 123), res);
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}
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#[test]
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fn join_size() {
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use futures::future;
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use std::mem;
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let fut = async {
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let ready = future::ready(0i32);
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tokio::join!(ready)
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};
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assert_eq!(mem::size_of_val(&fut), 16);
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let fut = async {
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let ready1 = future::ready(0i32);
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let ready2 = future::ready(0i32);
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tokio::join!(ready1, ready2)
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};
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assert_eq!(mem::size_of_val(&fut), 28);
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}
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