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/tokio/tests/io_write.rs | 58 ++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 third_party/rust/tokio/tests/io_write.rs (limited to 'third_party/rust/tokio/tests/io_write.rs') diff --git a/third_party/rust/tokio/tests/io_write.rs b/third_party/rust/tokio/tests/io_write.rs new file mode 100644 index 0000000000..96cebc3313 --- /dev/null +++ b/third_party/rust/tokio/tests/io_write.rs @@ -0,0 +1,58 @@ +#![warn(rust_2018_idioms)] +#![cfg(feature = "full")] + +use tokio::io::{AsyncWrite, AsyncWriteExt}; +use tokio_test::assert_ok; + +use bytes::BytesMut; +use std::io; +use std::pin::Pin; +use std::task::{Context, Poll}; + +#[tokio::test] +async fn write() { + struct Wr { + buf: BytesMut, + cnt: usize, + } + + impl AsyncWrite for Wr { + fn poll_write( + mut self: Pin<&mut Self>, + _cx: &mut Context<'_>, + buf: &[u8], + ) -> Poll> { + assert_eq!(self.cnt, 0); + self.buf.extend(&buf[0..4]); + Ok(4).into() + } + + fn poll_flush(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { + Ok(()).into() + } + + fn poll_shutdown(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll> { + Ok(()).into() + } + } + + let mut wr = Wr { + buf: BytesMut::with_capacity(64), + cnt: 0, + }; + + let n = assert_ok!(wr.write(b"hello world").await); + assert_eq!(n, 4); + assert_eq!(wr.buf, b"hell"[..]); +} + +#[tokio::test] +async fn write_cursor() { + use std::io::Cursor; + + let mut wr = Cursor::new(Vec::new()); + + let n = assert_ok!(wr.write(b"hello world").await); + assert_eq!(n, 11); + assert_eq!(wr.get_ref().as_slice(), &b"hello world"[..]); +} -- cgit v1.2.3