Adding upstream version 110.0.1.upstream/110.0.1upstream

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

1 files changed, 12 insertions, 0 deletions

diff --git a/third_party/rust/tokio-stream/tests/stream_once.rs b/third_party/rust/tokio-stream/tests/stream_once.rs
new file mode 100644
index 0000000000..f32bad3a12
--- /dev/null
+++ b/third_party/rust/tokio-stream/tests/stream_once.rs
@@ -0,0 +1,12 @@
+use tokio_stream::{self as stream, Stream, StreamExt};
+
+#[tokio::test]
+async fn basic_usage() {
+    let mut one = stream::once(1);
+
+    assert_eq!(one.size_hint(), (1, Some(1)));
+    assert_eq!(Some(1), one.next().await);
+
+    assert_eq!(one.size_hint(), (0, Some(0)));
+    assert_eq!(None, one.next().await);
+}