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use crate::sync::mpsc;
use futures::future::poll_fn;
use loom::future::block_on;
use loom::thread;
#[test]
fn closing_tx() {
loom::model(|| {
let (tx, mut rx) = mpsc::channel(16);
thread::spawn(move || {
tx.try_send(()).unwrap();
drop(tx);
});
let v = block_on(rx.recv());
assert!(v.is_some());
let v = block_on(rx.recv());
assert!(v.is_none());
});
}
#[test]
fn closing_unbounded_tx() {
loom::model(|| {
let (tx, mut rx) = mpsc::unbounded_channel();
thread::spawn(move || {
tx.send(()).unwrap();
drop(tx);
});
let v = block_on(rx.recv());
assert!(v.is_some());
let v = block_on(rx.recv());
assert!(v.is_none());
});
}
#[test]
fn closing_bounded_rx() {
loom::model(|| {
let (mut tx1, rx) = mpsc::channel::<()>(16);
let mut tx2 = tx1.clone();
thread::spawn(move || {
drop(rx);
});
block_on(tx1.closed());
block_on(tx2.closed());
});
}
#[test]
fn closing_unbounded_rx() {
loom::model(|| {
let (mut tx1, rx) = mpsc::unbounded_channel::<()>();
let mut tx2 = tx1.clone();
thread::spawn(move || {
drop(rx);
});
block_on(tx1.closed());
block_on(tx2.closed());
});
}
#[test]
fn dropping_tx() {
loom::model(|| {
let (tx, mut rx) = mpsc::channel::<()>(16);
for _ in 0..2 {
let tx = tx.clone();
thread::spawn(move || {
drop(tx);
});
}
drop(tx);
let v = block_on(rx.recv());
assert!(v.is_none());
});
}
#[test]
fn dropping_unbounded_tx() {
loom::model(|| {
let (tx, mut rx) = mpsc::unbounded_channel::<()>();
for _ in 0..2 {
let tx = tx.clone();
thread::spawn(move || {
drop(tx);
});
}
drop(tx);
let v = block_on(rx.recv());
assert!(v.is_none());
});
}
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