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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /vendor/tokio/tests/io_write.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/tokio/tests/io_write.rs')
-rw-r--r-- | vendor/tokio/tests/io_write.rs | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/vendor/tokio/tests/io_write.rs b/vendor/tokio/tests/io_write.rs new file mode 100644 index 000000000..96cebc331 --- /dev/null +++ b/vendor/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<io::Result<usize>> { + 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<io::Result<()>> { + Ok(()).into() + } + + fn poll_shutdown(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<io::Result<()>> { + 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"[..]); +} |