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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/rust/tokio/tests/time_rt.rs | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/tokio/tests/time_rt.rs')
-rw-r--r-- | third_party/rust/tokio/tests/time_rt.rs | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/third_party/rust/tokio/tests/time_rt.rs b/third_party/rust/tokio/tests/time_rt.rs new file mode 100644 index 0000000000..23367be418 --- /dev/null +++ b/third_party/rust/tokio/tests/time_rt.rs @@ -0,0 +1,89 @@ +#![warn(rust_2018_idioms)] +#![cfg(feature = "full")] + +use tokio::time::*; + +use std::sync::mpsc; + +#[test] +fn timer_with_threaded_runtime() { + use tokio::runtime::Runtime; + + let rt = Runtime::new().unwrap(); + let (tx, rx) = mpsc::channel(); + + rt.spawn(async move { + let when = Instant::now() + Duration::from_millis(10); + + sleep_until(when).await; + assert!(Instant::now() >= when); + + tx.send(()).unwrap(); + }); + + rx.recv().unwrap(); +} + +#[test] +fn timer_with_basic_scheduler() { + use tokio::runtime::Builder; + + let rt = Builder::new_current_thread().enable_all().build().unwrap(); + let (tx, rx) = mpsc::channel(); + + rt.block_on(async move { + let when = Instant::now() + Duration::from_millis(10); + + sleep_until(when).await; + assert!(Instant::now() >= when); + + tx.send(()).unwrap(); + }); + + rx.recv().unwrap(); +} + +#[tokio::test] +async fn starving() { + use std::future::Future; + use std::pin::Pin; + use std::task::{Context, Poll}; + + struct Starve<T: Future<Output = ()> + Unpin>(T, u64); + + impl<T: Future<Output = ()> + Unpin> Future for Starve<T> { + type Output = u64; + + fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<u64> { + if Pin::new(&mut self.0).poll(cx).is_ready() { + return Poll::Ready(self.1); + } + + self.1 += 1; + + cx.waker().wake_by_ref(); + + Poll::Pending + } + } + + let when = Instant::now() + Duration::from_millis(10); + let starve = Starve(Box::pin(sleep_until(when)), 0); + + starve.await; + assert!(Instant::now() >= when); +} + +#[tokio::test] +async fn timeout_value() { + use tokio::sync::oneshot; + + let (_tx, rx) = oneshot::channel::<()>(); + + let now = Instant::now(); + let dur = Duration::from_millis(10); + + let res = timeout(dur, rx).await; + assert!(res.is_err()); + assert!(Instant::now() >= now + dur); +} |