Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/third_party/rust/futures/tests/stream_peekable.rs b/third_party/rust/futures/tests/stream_peekable.rs
new file mode 100644
index 0000000000..b65a0572cb
--- /dev/null
+++ b/third_party/rust/futures/tests/stream_peekable.rs
@@ -0,0 +1,13 @@
+use futures::executor::block_on;
+use futures::pin_mut;
+use futures::stream::{self, Peekable, StreamExt};
+
+#[test]
+fn peekable() {
+    block_on(async {
+        let peekable: Peekable<_> = stream::iter(vec![1u8, 2, 3]).peekable();
+        pin_mut!(peekable);
+        assert_eq!(peekable.as_mut().peek().await, Some(&1u8));
+        assert_eq!(peekable.collect::<Vec<u8>>().await, vec![1, 2, 3]);
+    });
+}