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-rw-r--r--tests/abortable.rs39
1 files changed, 39 insertions, 0 deletions
diff --git a/tests/abortable.rs b/tests/abortable.rs
new file mode 100644
index 0000000..5925c9a
--- /dev/null
+++ b/tests/abortable.rs
@@ -0,0 +1,39 @@
+use futures::channel::oneshot;
+use futures::executor::block_on;
+use futures::future::{abortable, Aborted, FutureExt};
+use futures::task::{Context, Poll};
+use futures_test::task::new_count_waker;
+
+#[test]
+fn abortable_works() {
+ let (_tx, a_rx) = oneshot::channel::<()>();
+ let (abortable_rx, abort_handle) = abortable(a_rx);
+
+ abort_handle.abort();
+ assert_eq!(Err(Aborted), block_on(abortable_rx));
+}
+
+#[test]
+fn abortable_awakens() {
+ let (_tx, a_rx) = oneshot::channel::<()>();
+ let (mut abortable_rx, abort_handle) = abortable(a_rx);
+
+ let (waker, counter) = new_count_waker();
+ let mut cx = Context::from_waker(&waker);
+ assert_eq!(counter, 0);
+ assert_eq!(Poll::Pending, abortable_rx.poll_unpin(&mut cx));
+ assert_eq!(counter, 0);
+ abort_handle.abort();
+ assert_eq!(counter, 1);
+ assert_eq!(Poll::Ready(Err(Aborted)), abortable_rx.poll_unpin(&mut cx));
+}
+
+#[test]
+fn abortable_resolves() {
+ let (tx, a_rx) = oneshot::channel::<()>();
+ let (abortable_rx, _abort_handle) = abortable(a_rx);
+
+ tx.send(()).unwrap();
+
+ assert_eq!(Ok(Ok(())), block_on(abortable_rx));
+}