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-rw-r--r--library/core/tests/task.rs17
1 files changed, 16 insertions, 1 deletions
diff --git a/library/core/tests/task.rs b/library/core/tests/task.rs
index d71fef9e5..56be30e92 100644
--- a/library/core/tests/task.rs
+++ b/library/core/tests/task.rs
@@ -1,4 +1,4 @@
-use core::task::Poll;
+use core::task::{Context, Poll, RawWaker, RawWakerVTable, Waker};
#[test]
fn poll_const() {
@@ -12,3 +12,18 @@ fn poll_const() {
const IS_PENDING: bool = POLL.is_pending();
assert!(IS_PENDING);
}
+
+#[test]
+fn waker_const() {
+ const VOID_TABLE: RawWakerVTable = RawWakerVTable::new(|_| VOID_WAKER, |_| {}, |_| {}, |_| {});
+
+ const VOID_WAKER: RawWaker = RawWaker::new(&(), &VOID_TABLE);
+
+ static WAKER: Waker = unsafe { Waker::from_raw(VOID_WAKER) };
+
+ static CONTEXT: Context<'static> = Context::from_waker(&WAKER);
+
+ static WAKER_REF: &'static Waker = CONTEXT.waker();
+
+ WAKER_REF.wake_by_ref();
+}