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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/fs_file.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/fs_file.rs')
-rw-r--r-- | vendor/tokio/tests/fs_file.rs | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/vendor/tokio/tests/fs_file.rs b/vendor/tokio/tests/fs_file.rs new file mode 100644 index 000000000..bf2f1d7b5 --- /dev/null +++ b/vendor/tokio/tests/fs_file.rs @@ -0,0 +1,100 @@ +#![warn(rust_2018_idioms)] +#![cfg(feature = "full")] + +use tokio::fs::File; +use tokio::io::{AsyncReadExt, AsyncSeekExt, AsyncWriteExt}; +use tokio_test::task; + +use std::io::prelude::*; +use tempfile::NamedTempFile; + +const HELLO: &[u8] = b"hello world..."; + +#[tokio::test] +async fn basic_read() { + let mut tempfile = tempfile(); + tempfile.write_all(HELLO).unwrap(); + + let mut file = File::open(tempfile.path()).await.unwrap(); + + let mut buf = [0; 1024]; + let n = file.read(&mut buf).await.unwrap(); + + assert_eq!(n, HELLO.len()); + assert_eq!(&buf[..n], HELLO); +} + +#[tokio::test] +async fn basic_write() { + let tempfile = tempfile(); + + let mut file = File::create(tempfile.path()).await.unwrap(); + + file.write_all(HELLO).await.unwrap(); + file.flush().await.unwrap(); + + let file = std::fs::read(tempfile.path()).unwrap(); + assert_eq!(file, HELLO); +} + +#[tokio::test] +async fn basic_write_and_shutdown() { + let tempfile = tempfile(); + + let mut file = File::create(tempfile.path()).await.unwrap(); + + file.write_all(HELLO).await.unwrap(); + file.shutdown().await.unwrap(); + + let file = std::fs::read(tempfile.path()).unwrap(); + assert_eq!(file, HELLO); +} + +#[tokio::test] +async fn coop() { + let mut tempfile = tempfile(); + tempfile.write_all(HELLO).unwrap(); + + let mut task = task::spawn(async { + let mut file = File::open(tempfile.path()).await.unwrap(); + + let mut buf = [0; 1024]; + + loop { + file.read(&mut buf).await.unwrap(); + file.seek(std::io::SeekFrom::Start(0)).await.unwrap(); + } + }); + + for _ in 0..1_000 { + if task.poll().is_pending() { + return; + } + } + + panic!("did not yield"); +} + +fn tempfile() -> NamedTempFile { + NamedTempFile::new().unwrap() +} + +#[tokio::test] +#[cfg(unix)] +async fn unix_fd() { + use std::os::unix::io::AsRawFd; + let tempfile = tempfile(); + + let file = File::create(tempfile.path()).await.unwrap(); + assert!(file.as_raw_fd() as u64 > 0); +} + +#[tokio::test] +#[cfg(windows)] +async fn windows_handle() { + use std::os::windows::io::AsRawHandle; + let tempfile = tempfile(); + + let file = File::create(tempfile.path()).await.unwrap(); + assert!(file.as_raw_handle() as u64 > 0); +} |