From 43a97878ce14b72f0981164f87f2e35e14151312 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:22:09 +0200 Subject: Adding upstream version 110.0.1. Signed-off-by: Daniel Baumann --- third_party/rust/futures/tests/io_read_line.rs | 58 ++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 third_party/rust/futures/tests/io_read_line.rs (limited to 'third_party/rust/futures/tests/io_read_line.rs') diff --git a/third_party/rust/futures/tests/io_read_line.rs b/third_party/rust/futures/tests/io_read_line.rs new file mode 100644 index 0000000000..88a877928a --- /dev/null +++ b/third_party/rust/futures/tests/io_read_line.rs @@ -0,0 +1,58 @@ +use futures::executor::block_on; +use futures::future::{Future, FutureExt}; +use futures::io::{AsyncBufReadExt, Cursor}; +use futures::stream::{self, StreamExt, TryStreamExt}; +use futures::task::Poll; +use futures_test::io::AsyncReadTestExt; +use futures_test::task::noop_context; + +fn run(mut f: F) -> F::Output { + let mut cx = noop_context(); + loop { + if let Poll::Ready(x) = f.poll_unpin(&mut cx) { + return x; + } + } +} + +#[test] +fn read_line() { + let mut buf = Cursor::new(b"12"); + let mut v = String::new(); + assert_eq!(block_on(buf.read_line(&mut v)).unwrap(), 2); + assert_eq!(v, "12"); + + let mut buf = Cursor::new(b"12\n\n"); + let mut v = String::new(); + assert_eq!(block_on(buf.read_line(&mut v)).unwrap(), 3); + assert_eq!(v, "12\n"); + v.clear(); + assert_eq!(block_on(buf.read_line(&mut v)).unwrap(), 1); + assert_eq!(v, "\n"); + v.clear(); + assert_eq!(block_on(buf.read_line(&mut v)).unwrap(), 0); + assert_eq!(v, ""); +} + +#[test] +fn maybe_pending() { + let mut buf = b"12".interleave_pending(); + let mut v = String::new(); + assert_eq!(run(buf.read_line(&mut v)).unwrap(), 2); + assert_eq!(v, "12"); + + let mut buf = + stream::iter(vec![&b"12"[..], &b"\n\n"[..]]).map(Ok).into_async_read().interleave_pending(); + let mut v = String::new(); + assert_eq!(run(buf.read_line(&mut v)).unwrap(), 3); + assert_eq!(v, "12\n"); + v.clear(); + assert_eq!(run(buf.read_line(&mut v)).unwrap(), 1); + assert_eq!(v, "\n"); + v.clear(); + assert_eq!(run(buf.read_line(&mut v)).unwrap(), 0); + assert_eq!(v, ""); + v.clear(); + assert_eq!(run(buf.read_line(&mut v)).unwrap(), 0); + assert_eq!(v, ""); +} -- cgit v1.2.3