| 1 | use tokio_stream::{self as stream, Stream, StreamExt}; |
|---|---|
| 2 | |
| 3 | #[tokio::test] |
| 4 | async fn basic_usage() { |
| 5 | let mut one = stream::once(1); |
| 6 | |
| 7 | assert_eq!(one.size_hint(), (1, Some(1))); |
| 8 | assert_eq!(Some(1), one.next().await); |
| 9 | |
| 10 | assert_eq!(one.size_hint(), (0, Some(0))); |
| 11 | assert_eq!(None, one.next().await); |
| 12 | } |
| 13 |