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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/tokio/tests/fs_file.rs
parentInitial commit. (diff)
downloadrustc-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.rs100
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);
+}