Deleted vendor folder

1 files changed, 0 insertions, 1440 deletions

diff --git a/vendor/flume/tests/select_macro.rs b/vendor/flume/tests/select_macro.rs
deleted file mode 100644
index 367d8dd..0000000
--- a/vendor/flume/tests/select_macro.rs
+++ /dev/null
@@ -1,1440 +0,0 @@
-// //! Tests for the `select!` macro.
-
-// #![deny(unsafe_code)]
-
-// #[macro_use]
-// extern crate crossbeam_channel;
-// extern crate crossbeam_utils;
-
-// use std::any::Any;
-// use std::cell::Cell;
-// use std::ops::Deref;
-// use std::thread;
-// use std::time::{Duration, Instant};
-
-// use crossbeam_channel::{after, bounded, never, tick, unbounded};
-// use crossbeam_channel::{Receiver, RecvError, SendError, Sender, TryRecvError};
-// use crossbeam_utils::thread::scope;
-
-// fn ms(ms: u64) -> Duration {
-//     Duration::from_millis(ms)
-// }
-
-// #[test]
-// fn smoke1() {
-//     let (s1, r1) = unbounded::<usize>();
-//     let (s2, r2) = unbounded::<usize>();
-
-//     s1.send(1).unwrap();
-
-//     select! {
-//         recv(r1) -> v => assert_eq!(v, Ok(1)),
-//         recv(r2) -> _ => panic!(),
-//     }
-
-//     s2.send(2).unwrap();
-
-//     select! {
-//         recv(r1) -> _ => panic!(),
-//         recv(r2) -> v => assert_eq!(v, Ok(2)),
-//     }
-// }
-
-// #[test]
-// fn smoke2() {
-//     let (_s1, r1) = unbounded::<i32>();
-//     let (_s2, r2) = unbounded::<i32>();
-//     let (_s3, r3) = unbounded::<i32>();
-//     let (_s4, r4) = unbounded::<i32>();
-//     let (s5, r5) = unbounded::<i32>();
-
-//     s5.send(5).unwrap();
-
-//     select! {
-//         recv(r1) -> _ => panic!(),
-//         recv(r2) -> _ => panic!(),
-//         recv(r3) -> _ => panic!(),
-//         recv(r4) -> _ => panic!(),
-//         recv(r5) -> v => assert_eq!(v, Ok(5)),
-//     }
-// }
-
-// #[test]
-// fn disconnected() {
-//     let (s1, r1) = unbounded::<i32>();
-//     let (s2, r2) = unbounded::<i32>();
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             drop(s1);
-//             thread::sleep(ms(500));
-//             s2.send(5).unwrap();
-//         });
-
-//         select! {
-//             recv(r1) -> v => assert!(v.is_err()),
-//             recv(r2) -> _ => panic!(),
-//             default(ms(1000)) => panic!(),
-//         }
-
-//         r2.recv().unwrap();
-//     })
-//     .unwrap();
-
-//     select! {
-//         recv(r1) -> v => assert!(v.is_err()),
-//         recv(r2) -> _ => panic!(),
-//         default(ms(1000)) => panic!(),
-//     }
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             thread::sleep(ms(500));
-//             drop(s2);
-//         });
-
-//         select! {
-//             recv(r2) -> v => assert!(v.is_err()),
-//             default(ms(1000)) => panic!(),
-//         }
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn default() {
-//     let (s1, r1) = unbounded::<i32>();
-//     let (s2, r2) = unbounded::<i32>();
-
-//     select! {
-//         recv(r1) -> _ => panic!(),
-//         recv(r2) -> _ => panic!(),
-//         default => {}
-//     }
-
-//     drop(s1);
-
-//     select! {
-//         recv(r1) -> v => assert!(v.is_err()),
-//         recv(r2) -> _ => panic!(),
-//         default => panic!(),
-//     }
-
-//     s2.send(2).unwrap();
-
-//     select! {
-//         recv(r2) -> v => assert_eq!(v, Ok(2)),
-//         default => panic!(),
-//     }
-
-//     select! {
-//         recv(r2) -> _ => panic!(),
-//         default => {},
-//     }
-
-//     select! {
-//         default => {},
-//     }
-// }
-
-// #[test]
-// fn timeout() {
-//     let (_s1, r1) = unbounded::<i32>();
-//     let (s2, r2) = unbounded::<i32>();
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             thread::sleep(ms(1500));
-//             s2.send(2).unwrap();
-//         });
-
-//         select! {
-//             recv(r1) -> _ => panic!(),
-//             recv(r2) -> _ => panic!(),
-//             default(ms(1000)) => {},
-//         }
-
-//         select! {
-//             recv(r1) -> _ => panic!(),
-//             recv(r2) -> v => assert_eq!(v, Ok(2)),
-//             default(ms(1000)) => panic!(),
-//         }
-//     })
-//     .unwrap();
-
-//     scope(|scope| {
-//         let (s, r) = unbounded::<i32>();
-
-//         scope.spawn(move |_| {
-//             thread::sleep(ms(500));
-//             drop(s);
-//         });
-
-//         select! {
-//             default(ms(1000)) => {
-//                 select! {
-//                     recv(r) -> v => assert!(v.is_err()),
-//                     default => panic!(),
-//                 }
-//             }
-//         }
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn default_when_disconnected() {
-//     let (_, r) = unbounded::<i32>();
-
-//     select! {
-//         recv(r) -> res => assert!(res.is_err()),
-//         default => panic!(),
-//     }
-
-//     let (_, r) = unbounded::<i32>();
-
-//     select! {
-//         recv(r) -> res => assert!(res.is_err()),
-//         default(ms(1000)) => panic!(),
-//     }
-
-//     let (s, _) = bounded::<i32>(0);
-
-//     select! {
-//         send(s, 0) -> res => assert!(res.is_err()),
-//         default => panic!(),
-//     }
-
-//     let (s, _) = bounded::<i32>(0);
-
-//     select! {
-//         send(s, 0) -> res => assert!(res.is_err()),
-//         default(ms(1000)) => panic!(),
-//     }
-// }
-
-// #[test]
-// fn default_only() {
-//     let start = Instant::now();
-//     select! {
-//         default => {}
-//     }
-//     let now = Instant::now();
-//     assert!(now - start <= ms(50));
-
-//     let start = Instant::now();
-//     select! {
-//         default(ms(500)) => {}
-//     }
-//     let now = Instant::now();
-//     assert!(now - start >= ms(450));
-//     assert!(now - start <= ms(550));
-// }
-
-// #[test]
-// fn unblocks() {
-//     let (s1, r1) = bounded::<i32>(0);
-//     let (s2, r2) = bounded::<i32>(0);
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             thread::sleep(ms(500));
-//             s2.send(2).unwrap();
-//         });
-
-//         select! {
-//             recv(r1) -> _ => panic!(),
-//             recv(r2) -> v => assert_eq!(v, Ok(2)),
-//             default(ms(1000)) => panic!(),
-//         }
-//     })
-//     .unwrap();
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             thread::sleep(ms(500));
-//             assert_eq!(r1.recv().unwrap(), 1);
-//         });
-
-//         select! {
-//             send(s1, 1) -> _ => {},
-//             send(s2, 2) -> _ => panic!(),
-//             default(ms(1000)) => panic!(),
-//         }
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn both_ready() {
-//     let (s1, r1) = bounded(0);
-//     let (s2, r2) = bounded(0);
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             thread::sleep(ms(500));
-//             s1.send(1).unwrap();
-//             assert_eq!(r2.recv().unwrap(), 2);
-//         });
-
-//         for _ in 0..2 {
-//             select! {
-//                 recv(r1) -> v => assert_eq!(v, Ok(1)),
-//                 send(s2, 2) -> _ => {},
-//             }
-//         }
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn loop_try() {
-//     const RUNS: usize = 20;
-
-//     for _ in 0..RUNS {
-//         let (s1, r1) = bounded::<i32>(0);
-//         let (s2, r2) = bounded::<i32>(0);
-//         let (s_end, r_end) = bounded::<()>(0);
-
-//         scope(|scope| {
-//             scope.spawn(|_| loop {
-//                 select! {
-//                     send(s1, 1) -> _ => break,
-//                     default => {}
-//                 }
-
-//                 select! {
-//                     recv(r_end) -> _ => break,
-//                     default => {}
-//                 }
-//             });
-
-//             scope.spawn(|_| loop {
-//                 if let Ok(x) = r2.try_recv() {
-//                     assert_eq!(x, 2);
-//                     break;
-//                 }
-
-//                 select! {
-//                     recv(r_end) -> _ => break,
-//                     default => {}
-//                 }
-//             });
-
-//             scope.spawn(|_| {
-//                 thread::sleep(ms(500));
-
-//                 select! {
-//                     recv(r1) -> v => assert_eq!(v, Ok(1)),
-//                     send(s2, 2) -> _ => {},
-//                     default(ms(500)) => panic!(),
-//                 }
-
-//                 drop(s_end);
-//             });
-//         })
-//         .unwrap();
-//     }
-// }
-
-// #[test]
-// fn cloning1() {
-//     scope(|scope| {
-//         let (s1, r1) = unbounded::<i32>();
-//         let (_s2, r2) = unbounded::<i32>();
-//         let (s3, r3) = unbounded::<()>();
-
-//         scope.spawn(move |_| {
-//             r3.recv().unwrap();
-//             drop(s1.clone());
-//             assert_eq!(r3.try_recv(), Err(TryRecvError::Empty));
-//             s1.send(1).unwrap();
-//             r3.recv().unwrap();
-//         });
-
-//         s3.send(()).unwrap();
-
-//         select! {
-//             recv(r1) -> _ => {},
-//             recv(r2) -> _ => {},
-//         }
-
-//         s3.send(()).unwrap();
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn cloning2() {
-//     let (s1, r1) = unbounded::<()>();
-//     let (s2, r2) = unbounded::<()>();
-//     let (_s3, _r3) = unbounded::<()>();
-
-//     scope(|scope| {
-//         scope.spawn(move |_| {
-//             select! {
-//                 recv(r1) -> _ => panic!(),
-//                 recv(r2) -> _ => {},
-//             }
-//         });
-
-//         thread::sleep(ms(500));
-//         drop(s1.clone());
-//         s2.send(()).unwrap();
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn preflight1() {
-//     let (s, r) = unbounded();
-//     s.send(()).unwrap();
-
-//     select! {
-//         recv(r) -> _ => {}
-//     }
-// }
-
-// #[test]
-// fn preflight2() {
-//     let (s, r) = unbounded();
-//     drop(s.clone());
-//     s.send(()).unwrap();
-//     drop(s);
-
-//     select! {
-//         recv(r) -> v => assert!(v.is_ok()),
-//     }
-//     assert_eq!(r.try_recv(), Err(TryRecvError::Disconnected));
-// }
-
-// #[test]
-// fn preflight3() {
-//     let (s, r) = unbounded();
-//     drop(s.clone());
-//     s.send(()).unwrap();
-//     drop(s);
-//     r.recv().unwrap();
-
-//     select! {
-//         recv(r) -> v => assert!(v.is_err())
-//     }
-// }
-
-// #[test]
-// fn duplicate_operations() {
-//     let (s, r) = unbounded::<i32>();
-//     let mut hit = [false; 4];
-
-//     while hit.iter().any(|hit| !hit) {
-//         select! {
-//             recv(r) -> _ => hit[0] = true,
-//             recv(r) -> _ => hit[1] = true,
-//             send(s, 0) -> _ => hit[2] = true,
-//             send(s, 0) -> _ => hit[3] = true,
-//         }
-//     }
-// }
-
-// #[test]
-// fn nesting() {
-//     let (s, r) = unbounded::<i32>();
-
-//     select! {
-//         send(s, 0) -> _ => {
-//             select! {
-//                 recv(r) -> v => {
-//                     assert_eq!(v, Ok(0));
-//                     select! {
-//                         send(s, 1) -> _ => {
-//                             select! {
-//                                 recv(r) -> v => {
-//                                     assert_eq!(v, Ok(1));
-//                                 }
-//                             }
-//                         }
-//                     }
-//                 }
-//             }
-//         }
-//     }
-// }
-
-// #[test]
-// #[should_panic(expected = "send panicked")]
-// fn panic_sender() {
-//     fn get() -> Sender<i32> {
-//         panic!("send panicked")
-//     }
-
-//     #[allow(unreachable_code)]
-//     {
-//         select! {
-//             send(get(), panic!()) -> _ => {}
-//         }
-//     }
-// }
-
-// #[test]
-// #[should_panic(expected = "recv panicked")]
-// fn panic_receiver() {
-//     fn get() -> Receiver<i32> {
-//         panic!("recv panicked")
-//     }
-
-//     select! {
-//         recv(get()) -> _ => {}
-//     }
-// }
-
-// #[test]
-// fn stress_recv() {
-//     const COUNT: usize = 10_000;
-
-//     let (s1, r1) = unbounded();
-//     let (s2, r2) = bounded(5);
-//     let (s3, r3) = bounded(100);
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             for i in 0..COUNT {
-//                 s1.send(i).unwrap();
-//                 r3.recv().unwrap();
-
-//                 s2.send(i).unwrap();
-//                 r3.recv().unwrap();
-//             }
-//         });
-
-//         for i in 0..COUNT {
-//             for _ in 0..2 {
-//                 select! {
-//                     recv(r1) -> v => assert_eq!(v, Ok(i)),
-//                     recv(r2) -> v => assert_eq!(v, Ok(i)),
-//                 }
-
-//                 s3.send(()).unwrap();
-//             }
-//         }
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn stress_send() {
-//     const COUNT: usize = 10_000;
-
-//     let (s1, r1) = bounded(0);
-//     let (s2, r2) = bounded(0);
-//     let (s3, r3) = bounded(100);
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             for i in 0..COUNT {
-//                 assert_eq!(r1.recv().unwrap(), i);
-//                 assert_eq!(r2.recv().unwrap(), i);
-//                 r3.recv().unwrap();
-//             }
-//         });
-
-//         for i in 0..COUNT {
-//             for _ in 0..2 {
-//                 select! {
-//                     send(s1, i) -> _ => {},
-//                     send(s2, i) -> _ => {},
-//                 }
-//             }
-//             s3.send(()).unwrap();
-//         }
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn stress_mixed() {
-//     const COUNT: usize = 10_000;
-
-//     let (s1, r1) = bounded(0);
-//     let (s2, r2) = bounded(0);
-//     let (s3, r3) = bounded(100);
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             for i in 0..COUNT {
-//                 s1.send(i).unwrap();
-//                 assert_eq!(r2.recv().unwrap(), i);
-//                 r3.recv().unwrap();
-//             }
-//         });
-
-//         for i in 0..COUNT {
-//             for _ in 0..2 {
-//                 select! {
-//                     recv(r1) -> v => assert_eq!(v, Ok(i)),
-//                     send(s2, i) -> _ => {},
-//                 }
-//             }
-//             s3.send(()).unwrap();
-//         }
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn stress_timeout_two_threads() {
-//     const COUNT: usize = 20;
-
-//     let (s, r) = bounded(2);
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             for i in 0..COUNT {
-//                 if i % 2 == 0 {
-//                     thread::sleep(ms(500));
-//                 }
-
-//                 loop {
-//                     select! {
-//                         send(s, i) -> _ => break,
-//                         default(ms(100)) => {}
-//                     }
-//                 }
-//             }
-//         });
-
-//         scope.spawn(|_| {
-//             for i in 0..COUNT {
-//                 if i % 2 == 0 {
-//                     thread::sleep(ms(500));
-//                 }
-
-//                 loop {
-//                     select! {
-//                         recv(r) -> v => {
-//                             assert_eq!(v, Ok(i));
-//                             break;
-//                         }
-//                         default(ms(100)) => {}
-//                     }
-//                 }
-//             }
-//         });
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn send_recv_same_channel() {
-//     let (s, r) = bounded::<i32>(0);
-//     select! {
-//         send(s, 0) -> _ => panic!(),
-//         recv(r) -> _ => panic!(),
-//         default(ms(500)) => {}
-//     }
-
-//     let (s, r) = unbounded::<i32>();
-//     select! {
-//         send(s, 0) -> _ => {},
-//         recv(r) -> _ => panic!(),
-//         default(ms(500)) => panic!(),
-//     }
-// }
-
-// #[test]
-// fn matching() {
-//     const THREADS: usize = 44;
-
-//     let (s, r) = &bounded::<usize>(0);
-
-//     scope(|scope| {
-//         for i in 0..THREADS {
-//             scope.spawn(move |_| {
-//                 select! {
-//                     recv(r) -> v => assert_ne!(v.unwrap(), i),
-//                     send(s, i) -> _ => {},
-//                 }
-//             });
-//         }
-//     })
-//     .unwrap();
-
-//     assert_eq!(r.try_recv(), Err(TryRecvError::Empty));
-// }
-
-// #[test]
-// fn matching_with_leftover() {
-//     const THREADS: usize = 55;
-
-//     let (s, r) = &bounded::<usize>(0);
-
-//     scope(|scope| {
-//         for i in 0..THREADS {
-//             scope.spawn(move |_| {
-//                 select! {
-//                     recv(r) -> v => assert_ne!(v.unwrap(), i),
-//                     send(s, i) -> _ => {},
-//                 }
-//             });
-//         }
-//         s.send(!0).unwrap();
-//     })
-//     .unwrap();
-
-//     assert_eq!(r.try_recv(), Err(TryRecvError::Empty));
-// }
-
-// #[test]
-// fn channel_through_channel() {
-//     const COUNT: usize = 1000;
-
-//     type T = Box<dyn Any + Send>;
-
-//     for cap in 0..3 {
-//         let (s, r) = bounded::<T>(cap);
-
-//         scope(|scope| {
-//             scope.spawn(move |_| {
-//                 let mut s = s;
-
-//                 for _ in 0..COUNT {
-//                     let (new_s, new_r) = bounded(cap);
-//                     let new_r: T = Box::new(Some(new_r));
-
-//                     select! {
-//                         send(s, new_r) -> _ => {}
-//                     }
-
-//                     s = new_s;
-//                 }
-//             });
-
-//             scope.spawn(move |_| {
-//                 let mut r = r;
-
-//                 for _ in 0..COUNT {
-//                     r = select! {
-//                         recv(r) -> msg => {
-//                             msg.unwrap()
-//                                 .downcast_mut::<Option<Receiver<T>>>()
-//                                 .unwrap()
-//                                 .take()
-//                                 .unwrap()
-//                         }
-//                     }
-//                 }
-//             });
-//         })
-//         .unwrap();
-//     }
-// }
-
-// #[test]
-// fn linearizable_default() {
-//     const COUNT: usize = 100_000;
-
-//     for step in 0..2 {
-//         let (start_s, start_r) = bounded::<()>(0);
-//         let (end_s, end_r) = bounded::<()>(0);
-
-//         let ((s1, r1), (s2, r2)) = if step == 0 {
-//             (bounded::<i32>(1), bounded::<i32>(1))
-//         } else {
-//             (unbounded::<i32>(), unbounded::<i32>())
-//         };
-
-//         scope(|scope| {
-//             scope.spawn(|_| {
-//                 for _ in 0..COUNT {
-//                     start_s.send(()).unwrap();
-
-//                     s1.send(1).unwrap();
-//                     select! {
-//                         recv(r1) -> _ => {}
-//                         recv(r2) -> _ => {}
-//                         default => unreachable!()
-//                     }
-
-//                     end_s.send(()).unwrap();
-//                     let _ = r2.try_recv();
-//                 }
-//             });
-
-//             for _ in 0..COUNT {
-//                 start_r.recv().unwrap();
-
-//                 s2.send(1).unwrap();
-//                 let _ = r1.try_recv();
-
-//                 end_r.recv().unwrap();
-//             }
-//         })
-//         .unwrap();
-//     }
-// }
-
-// #[test]
-// fn linearizable_timeout() {
-//     const COUNT: usize = 100_000;
-
-//     for step in 0..2 {
-//         let (start_s, start_r) = bounded::<()>(0);
-//         let (end_s, end_r) = bounded::<()>(0);
-
-//         let ((s1, r1), (s2, r2)) = if step == 0 {
-//             (bounded::<i32>(1), bounded::<i32>(1))
-//         } else {
-//             (unbounded::<i32>(), unbounded::<i32>())
-//         };
-
-//         scope(|scope| {
-//             scope.spawn(|_| {
-//                 for _ in 0..COUNT {
-//                     start_s.send(()).unwrap();
-
-//                     s1.send(1).unwrap();
-//                     select! {
-//                         recv(r1) -> _ => {}
-//                         recv(r2) -> _ => {}
-//                         default(ms(0)) => unreachable!()
-//                     }
-
-//                     end_s.send(()).unwrap();
-//                     let _ = r2.try_recv();
-//                 }
-//             });
-
-//             for _ in 0..COUNT {
-//                 start_r.recv().unwrap();
-
-//                 s2.send(1).unwrap();
-//                 let _ = r1.try_recv();
-
-//                 end_r.recv().unwrap();
-//             }
-//         })
-//         .unwrap();
-//     }
-// }
-
-// #[test]
-// fn fairness1() {
-//     const COUNT: usize = 10_000;
-
-//     let (s1, r1) = bounded::<()>(COUNT);
-//     let (s2, r2) = unbounded::<()>();
-
-//     for _ in 0..COUNT {
-//         s1.send(()).unwrap();
-//         s2.send(()).unwrap();
-//     }
-
-//     let mut hits = [0usize; 4];
-//     for _ in 0..COUNT {
-//         select! {
-//             recv(r1) -> _ => hits[0] += 1,
-//             recv(r2) -> _ => hits[1] += 1,
-//             recv(after(ms(0))) -> _ => hits[2] += 1,
-//             recv(tick(ms(0))) -> _ => hits[3] += 1,
-//         }
-//     }
-//     assert!(hits.iter().all(|x| *x >= COUNT / hits.len() / 2));
-// }
-
-// #[test]
-// fn fairness2() {
-//     const COUNT: usize = 10_000;
-
-//     let (s1, r1) = unbounded::<()>();
-//     let (s2, r2) = bounded::<()>(1);
-//     let (s3, r3) = bounded::<()>(0);
-
-//     scope(|scope| {
-//         scope.spawn(|_| {
-//             let (hole, _r) = bounded(0);
-
-//             for _ in 0..COUNT {
-//                 let s1 = if s1.is_empty() { &s1 } else { &hole };
-//                 let s2 = if s2.is_empty() { &s2 } else { &hole };
-
-//                 select! {
-//                     send(s1, ()) -> res => assert!(res.is_ok()),
-//                     send(s2, ()) -> res => assert!(res.is_ok()),
-//                     send(s3, ()) -> res => assert!(res.is_ok()),
-//                 }
-//             }
-//         });
-
-//         let hits = vec![Cell::new(0usize); 3];
-//         for _ in 0..COUNT {
-//             select! {
-//                 recv(r1) -> _ => hits[0].set(hits[0].get() + 1),
-//                 recv(r2) -> _ => hits[1].set(hits[1].get() + 1),
-//                 recv(r3) -> _ => hits[2].set(hits[2].get() + 1),
-//             }
-//         }
-//         assert!(hits.iter().all(|x| x.get() >= COUNT / hits.len() / 50));
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn fairness_recv() {
-//     const COUNT: usize = 10_000;
-
-//     let (s1, r1) = bounded::<()>(COUNT);
-//     let (s2, r2) = unbounded::<()>();
-
-//     for _ in 0..COUNT {
-//         s1.send(()).unwrap();
-//         s2.send(()).unwrap();
-//     }
-
-//     let mut hits = [0usize; 2];
-//     while hits[0] + hits[1] < COUNT {
-//         select! {
-//             recv(r1) -> _ => hits[0] += 1,
-//             recv(r2) -> _ => hits[1] += 1,
-//         }
-//     }
-//     assert!(hits.iter().all(|x| *x >= COUNT / 4));
-// }
-
-// #[test]
-// fn fairness_send() {
-//     const COUNT: usize = 10_000;
-
-//     let (s1, _r1) = bounded::<()>(COUNT);
-//     let (s2, _r2) = unbounded::<()>();
-
-//     let mut hits = [0usize; 2];
-//     for _ in 0..COUNT {
-//         select! {
-//             send(s1, ()) -> _ => hits[0] += 1,
-//             send(s2, ()) -> _ => hits[1] += 1,
-//         }
-//     }
-//     assert!(hits.iter().all(|x| *x >= COUNT / 4));
-// }
-
-// #[test]
-// fn references() {
-//     let (s, r) = unbounded::<i32>();
-//     select! {
-//         send(s, 0) -> _ => {}
-//         recv(r) -> _ => {}
-//     }
-//     select! {
-//         send(&&&&s, 0) -> _ => {}
-//         recv(&&&&r) -> _ => {}
-//     }
-//     select! {
-//         recv(Some(&r).unwrap_or(&never())) -> _ => {},
-//         default => {}
-//     }
-//     select! {
-//         recv(Some(r).unwrap_or(never())) -> _ => {},
-//         default => {}
-//     }
-// }
-
-// #[test]
-// fn case_blocks() {
-//     let (s, r) = unbounded::<i32>();
-
-//     select! {
-//         recv(r) -> _ => 3.0,
-//         recv(r) -> _ => loop {
-//             unreachable!()
-//         },
-//         recv(r) -> _ => match 7 + 3 {
-//             _ => unreachable!()
-//         },
-//         default => 7.
-//     };
-
-//     select! {
-//         recv(r) -> msg => if msg.is_ok() {
-//             unreachable!()
-//         },
-//         default => ()
-//     }
-
-//     drop(s);
-// }
-
-// #[test]
-// fn move_handles() {
-//     let (s, r) = unbounded::<i32>();
-//     select! {
-//         recv((move || r)()) -> _ => {}
-//         send((move || s)(), 0) -> _ => {}
-//     }
-// }
-
-// #[test]
-// fn infer_types() {
-//     let (s, r) = unbounded();
-//     select! {
-//         recv(r) -> _ => {}
-//         default => {}
-//     }
-//     s.send(()).unwrap();
-
-//     let (s, r) = unbounded();
-//     select! {
-//         send(s, ()) -> _ => {}
-//     }
-//     r.recv().unwrap();
-// }
-
-// #[test]
-// fn default_syntax() {
-//     let (s, r) = bounded::<i32>(0);
-
-//     select! {
-//         recv(r) -> _ => panic!(),
-//         default => {}
-//     }
-//     select! {
-//         send(s, 0) -> _ => panic!(),
-//         default() => {}
-//     }
-//     select! {
-//         default => {}
-//     }
-//     select! {
-//         default() => {}
-//     }
-// }
-
-// #[test]
-// fn same_variable_name() {
-//     let (_, r) = unbounded::<i32>();
-//     select! {
-//         recv(r) -> r => assert!(r.is_err()),
-//     }
-// }
-
-// #[test]
-// fn handles_on_heap() {
-//     let (s, r) = unbounded::<i32>();
-//     let (s, r) = (Box::new(s), Box::new(r));
-
-//     select! {
-//         send(*s, 0) -> _ => {}
-//         recv(*r) -> _ => {}
-//         default => {}
-//     }
-
-//     drop(s);
-//     drop(r);
-// }
-
-// #[test]
-// fn once_blocks() {
-//     let (s, r) = unbounded::<i32>();
-
-//     let once = Box::new(());
-//     select! {
-//         send(s, 0) -> _ => drop(once),
-//     }
-
-//     let once = Box::new(());
-//     select! {
-//         recv(r) -> _ => drop(once),
-//     }
-
-//     let once1 = Box::new(());
-//     let once2 = Box::new(());
-//     select! {
-//         send(s, 0) -> _ => drop(once1),
-//         default => drop(once2),
-//     }
-
-//     let once1 = Box::new(());
-//     let once2 = Box::new(());
-//     select! {
-//         recv(r) -> _ => drop(once1),
-//         default => drop(once2),
-//     }
-
-//     let once1 = Box::new(());
-//     let once2 = Box::new(());
-//     select! {
-//         recv(r) -> _ => drop(once1),
-//         send(s, 0) -> _ => drop(once2),
-//     }
-// }
-
-// #[test]
-// fn once_receiver() {
-//     let (_, r) = unbounded::<i32>();
-
-//     let once = Box::new(());
-//     let get = move || {
-//         drop(once);
-//         r
-//     };
-
-//     select! {
-//         recv(get()) -> _ => {}
-//     }
-// }
-
-// #[test]
-// fn once_sender() {
-//     let (s, _) = unbounded::<i32>();
-
-//     let once = Box::new(());
-//     let get = move || {
-//         drop(once);
-//         s
-//     };
-
-//     select! {
-//         send(get(), 5) -> _ => {}
-//     }
-// }
-
-// #[test]
-// fn parse_nesting() {
-//     let (_, r) = unbounded::<i32>();
-
-//     select! {
-//         recv(r) -> _ => {}
-//         recv(r) -> _ => {
-//             select! {
-//                 recv(r) -> _ => {}
-//                 recv(r) -> _ => {
-//                     select! {
-//                         recv(r) -> _ => {}
-//                         recv(r) -> _ => {
-//                             select! {
-//                                 default => {}
-//                             }
-//                         }
-//                     }
-//                 }
-//             }
-//         }
-//     }
-// }
-
-// #[test]
-// fn evaluate() {
-//     let (s, r) = unbounded::<i32>();
-
-//     let v = select! {
-//         recv(r) -> _ => "foo".into(),
-//         send(s, 0) -> _ => "bar".to_owned(),
-//         default => "baz".to_string(),
-//     };
-//     assert_eq!(v, "bar");
-
-//     let v = select! {
-//         recv(r) -> _ => "foo".into(),
-//         default => "baz".to_string(),
-//     };
-//     assert_eq!(v, "foo");
-
-//     let v = select! {
-//         recv(r) -> _ => "foo".into(),
-//         default => "baz".to_string(),
-//     };
-//     assert_eq!(v, "baz");
-// }
-
-// #[test]
-// fn deref() {
-//     use crossbeam_channel as cc;
-
-//     struct Sender<T>(cc::Sender<T>);
-//     struct Receiver<T>(cc::Receiver<T>);
-
-//     impl<T> Deref for Receiver<T> {
-//         type Target = cc::Receiver<T>;
-
-//         fn deref(&self) -> &Self::Target {
-//             &self.0
-//         }
-//     }
-
-//     impl<T> Deref for Sender<T> {
-//         type Target = cc::Sender<T>;
-
-//         fn deref(&self) -> &Self::Target {
-//             &self.0
-//         }
-//     }
-
-//     let (s, r) = bounded::<i32>(0);
-//     let (s, r) = (Sender(s), Receiver(r));
-
-//     select! {
-//         send(s, 0) -> _ => panic!(),
-//         recv(r) -> _ => panic!(),
-//         default => {}
-//     }
-// }
-
-// #[test]
-// fn result_types() {
-//     let (s, _) = bounded::<i32>(0);
-//     let (_, r) = bounded::<i32>(0);
-
-//     select! {
-//         recv(r) -> res => drop::<Result<i32, RecvError>>(res),
-//     }
-//     select! {
-//         recv(r) -> res => drop::<Result<i32, RecvError>>(res),
-//         default => {}
-//     }
-//     select! {
-//         recv(r) -> res => drop::<Result<i32, RecvError>>(res),
-//         default(ms(0)) => {}
-//     }
-
-//     select! {
-//         send(s, 0) -> res => drop::<Result<(), SendError<i32>>>(res),
-//     }
-//     select! {
-//         send(s, 0) -> res => drop::<Result<(), SendError<i32>>>(res),
-//         default => {}
-//     }
-//     select! {
-//         send(s, 0) -> res => drop::<Result<(), SendError<i32>>>(res),
-//         default(ms(0)) => {}
-//     }
-
-//     select! {
-//         send(s, 0) -> res => drop::<Result<(), SendError<i32>>>(res),
-//         recv(r) -> res => drop::<Result<i32, RecvError>>(res),
-//     }
-// }
-
-// #[test]
-// fn try_recv() {
-//     let (s, r) = bounded(0);
-
-//     scope(|scope| {
-//         scope.spawn(move |_| {
-//             select! {
-//                 recv(r) -> _ => panic!(),
-//                 default => {}
-//             }
-//             thread::sleep(ms(1500));
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Ok(7)),
-//                 default => panic!(),
-//             }
-//             thread::sleep(ms(500));
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Err(RecvError)),
-//                 default => panic!(),
-//             }
-//         });
-//         scope.spawn(move |_| {
-//             thread::sleep(ms(1000));
-//             select! {
-//                 send(s, 7) -> res => res.unwrap(),
-//             }
-//         });
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn recv() {
-//     let (s, r) = bounded(0);
-
-//     scope(|scope| {
-//         scope.spawn(move |_| {
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Ok(7)),
-//             }
-//             thread::sleep(ms(1000));
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Ok(8)),
-//             }
-//             thread::sleep(ms(1000));
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Ok(9)),
-//             }
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Err(RecvError)),
-//             }
-//         });
-//         scope.spawn(move |_| {
-//             thread::sleep(ms(1500));
-//             select! {
-//                 send(s, 7) -> res => res.unwrap(),
-//             }
-//             select! {
-//                 send(s, 8) -> res => res.unwrap(),
-//             }
-//             select! {
-//                 send(s, 9) -> res => res.unwrap(),
-//             }
-//         });
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn recv_timeout() {
-//     let (s, r) = bounded::<i32>(0);
-
-//     scope(|scope| {
-//         scope.spawn(move |_| {
-//             select! {
-//                 recv(r) -> _ => panic!(),
-//                 default(ms(1000)) => {}
-//             }
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Ok(7)),
-//                 default(ms(1000)) => panic!(),
-//             }
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Err(RecvError)),
-//                 default(ms(1000)) => panic!(),
-//             }
-//         });
-//         scope.spawn(move |_| {
-//             thread::sleep(ms(1500));
-//             select! {
-//                 send(s, 7) -> res => res.unwrap(),
-//             }
-//         });
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn try_send() {
-//     let (s, r) = bounded(0);
-
-//     scope(|scope| {
-//         scope.spawn(move |_| {
-//             select! {
-//                 send(s, 7) -> _ => panic!(),
-//                 default => {}
-//             }
-//             thread::sleep(ms(1500));
-//             select! {
-//                 send(s, 8) -> res => res.unwrap(),
-//                 default => panic!(),
-//             }
-//             thread::sleep(ms(500));
-//             select! {
-//                 send(s, 8) -> res => assert_eq!(res, Err(SendError(8))),
-//                 default => panic!(),
-//             }
-//         });
-//         scope.spawn(move |_| {
-//             thread::sleep(ms(1000));
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Ok(8)),
-//             }
-//         });
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn send() {
-//     let (s, r) = bounded(0);
-
-//     scope(|scope| {
-//         scope.spawn(move |_| {
-//             select! {
-//                 send(s, 7) -> res => res.unwrap(),
-//             }
-//             thread::sleep(ms(1000));
-//             select! {
-//                 send(s, 8) -> res => res.unwrap(),
-//             }
-//             thread::sleep(ms(1000));
-//             select! {
-//                 send(s, 9) -> res => res.unwrap(),
-//             }
-//         });
-//         scope.spawn(move |_| {
-//             thread::sleep(ms(1500));
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Ok(7)),
-//             }
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Ok(8)),
-//             }
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Ok(9)),
-//             }
-//         });
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn send_timeout() {
-//     let (s, r) = bounded(0);
-
-//     scope(|scope| {
-//         scope.spawn(move |_| {
-//             select! {
-//                 send(s, 7) -> _ => panic!(),
-//                 default(ms(1000)) => {}
-//             }
-//             select! {
-//                 send(s, 8) -> res => res.unwrap(),
-//                 default(ms(1000)) => panic!(),
-//             }
-//             select! {
-//                 send(s, 9) -> res => assert_eq!(res, Err(SendError(9))),
-//                 default(ms(1000)) => panic!(),
-//             }
-//         });
-//         scope.spawn(move |_| {
-//             thread::sleep(ms(1500));
-//             select! {
-//                 recv(r) -> v => assert_eq!(v, Ok(8)),
-//             }
-//         });
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn disconnect_wakes_sender() {
-//     let (s, r) = bounded(0);
-
-//     scope(|scope| {
-//         scope.spawn(move |_| {
-//             select! {
-//                 send(s, ()) -> res => assert_eq!(res, Err(SendError(()))),
-//             }
-//         });
-//         scope.spawn(move |_| {
-//             thread::sleep(ms(1000));
-//             drop(r);
-//         });
-//     })
-//     .unwrap();
-// }
-
-// #[test]
-// fn disconnect_wakes_receiver() {
-//     let (s, r) = bounded::<()>(0);
-
-//     scope(|scope| {
-//         scope.spawn(move |_| {
-//             select! {
-//                 recv(r) -> res => assert_eq!(res, Err(RecvError)),
-//             }
-//         });
-//         scope.spawn(move |_| {
-//             thread::sleep(ms(1000));
-//             drop(s);
-//         });
-//     })
-//     .unwrap();
-// }