extern crate crossbeam_utils; use std::thread::sleep; use std::time::Duration; use std::u32; use crossbeam_utils::sync::Parker; use crossbeam_utils::thread; #[test] fn park_timeout_unpark_before() { let p = Parker::new(); for _ in 0..10 { p.unparker().unpark(); p.park_timeout(Duration::from_millis(u32::MAX as u64)); } } #[test] fn park_timeout_unpark_not_called() { let p = Parker::new(); for _ in 0..10 { p.park_timeout(Duration::from_millis(10)); } } #[test] fn park_timeout_unpark_called_other_thread() { for _ in 0..10 { let p = Parker::new(); let u = p.unparker().clone(); thread::scope(|scope| { scope.spawn(move |_| { sleep(Duration::from_millis(50)); u.unpark(); }); p.park_timeout(Duration::from_millis(u32::MAX as u64)); }) .unwrap(); } }