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#![warn(rust_2018_idioms)]
#![cfg(all(feature = "full", not(target_os = "wasi")))] // Wasi does not support bind
use tokio::net::TcpListener;
use tokio::runtime;
use tokio_test::{assert_err, assert_pending, assert_ready, task};
#[test]
#[cfg_attr(miri, ignore)] // No `socket` in miri.
fn tcp_doesnt_block() {
let rt = rt();
let listener = {
let _enter = rt.enter();
let listener = std::net::TcpListener::bind("127.0.0.1:0").unwrap();
TcpListener::from_std(listener).unwrap()
};
drop(rt);
let mut task = task::spawn(async move {
assert_err!(listener.accept().await);
});
assert_ready!(task.poll());
}
#[test]
#[cfg_attr(miri, ignore)] // No `socket` in miri.
fn drop_wakes() {
let rt = rt();
let listener = {
let _enter = rt.enter();
let listener = std::net::TcpListener::bind("127.0.0.1:0").unwrap();
TcpListener::from_std(listener).unwrap()
};
let mut task = task::spawn(async move {
assert_err!(listener.accept().await);
});
assert_pending!(task.poll());
drop(rt);
assert!(task.is_woken());
assert_ready!(task.poll());
}
fn rt() -> runtime::Runtime {
runtime::Builder::new_current_thread()
.enable_all()
.build()
.unwrap()
}
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