85 lines
2.6 KiB
Rust
85 lines
2.6 KiB
Rust
#![warn(rust_2018_idioms)]
|
|
#![cfg(all(feature = "full", not(target_os = "wasi")))] // WASI does not support all fs operations
|
|
|
|
use std::io::Write;
|
|
use tempfile::NamedTempFile;
|
|
use tokio::fs::OpenOptions;
|
|
use tokio::io::AsyncReadExt;
|
|
|
|
const HELLO: &[u8] = b"hello world...";
|
|
|
|
#[tokio::test]
|
|
async fn open_with_open_options_and_read() {
|
|
let mut tempfile = NamedTempFile::new().unwrap();
|
|
tempfile.write_all(HELLO).unwrap();
|
|
|
|
let mut file = OpenOptions::new().read(true).open(tempfile).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 open_options_write() {
|
|
// TESTING HACK: use Debug output to check the stored data
|
|
assert!(format!("{:?}", OpenOptions::new().write(true)).contains("write: true"));
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn open_options_append() {
|
|
// TESTING HACK: use Debug output to check the stored data
|
|
assert!(format!("{:?}", OpenOptions::new().append(true)).contains("append: true"));
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn open_options_truncate() {
|
|
// TESTING HACK: use Debug output to check the stored data
|
|
assert!(format!("{:?}", OpenOptions::new().truncate(true)).contains("truncate: true"));
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn open_options_create() {
|
|
// TESTING HACK: use Debug output to check the stored data
|
|
assert!(format!("{:?}", OpenOptions::new().create(true)).contains("create: true"));
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn open_options_create_new() {
|
|
// TESTING HACK: use Debug output to check the stored data
|
|
assert!(format!("{:?}", OpenOptions::new().create_new(true)).contains("create_new: true"));
|
|
}
|
|
|
|
#[tokio::test]
|
|
#[cfg(unix)]
|
|
async fn open_options_mode() {
|
|
let mode = format!("{:?}", OpenOptions::new().mode(0o644));
|
|
// TESTING HACK: use Debug output to check the stored data
|
|
assert!(
|
|
mode.contains("mode: 420 ") || mode.contains("mode: 0o000644 "),
|
|
"mode is: {}",
|
|
mode
|
|
);
|
|
}
|
|
|
|
#[tokio::test]
|
|
#[cfg(target_os = "linux")]
|
|
async fn open_options_custom_flags_linux() {
|
|
// TESTING HACK: use Debug output to check the stored data
|
|
assert!(
|
|
format!("{:?}", OpenOptions::new().custom_flags(libc::O_TRUNC))
|
|
.contains("custom_flags: 512,")
|
|
);
|
|
}
|
|
|
|
#[tokio::test]
|
|
#[cfg(any(target_os = "freebsd", target_os = "macos"))]
|
|
async fn open_options_custom_flags_bsd_family() {
|
|
// TESTING HACK: use Debug output to check the stored data
|
|
assert!(
|
|
format!("{:?}", OpenOptions::new().custom_flags(libc::O_NOFOLLOW))
|
|
.contains("custom_flags: 256,")
|
|
);
|
|
}
|