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use crate::sync::AtomicWaker;
use tokio_test::task;
use std::task::Waker;
trait AssertSend: Send {}
trait AssertSync: Send {}
impl AssertSend for AtomicWaker {}
impl AssertSync for AtomicWaker {}
impl AssertSend for Waker {}
impl AssertSync for Waker {}
#[test]
fn basic_usage() {
let mut waker = task::spawn(AtomicWaker::new());
waker.enter(|cx, waker| waker.register_by_ref(cx.waker()));
waker.wake();
assert!(waker.is_woken());
}
#[test]
fn wake_without_register() {
let mut waker = task::spawn(AtomicWaker::new());
waker.wake();
// Registering should not result in a notification
waker.enter(|cx, waker| waker.register_by_ref(cx.waker()));
assert!(!waker.is_woken());
}
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