51f3ac0c45
This commit updates _all_ WASI test programs to use the latest version of the `wasi` crate (`v0.9.0`). While at it, it also unifies asserting error conditions across all test programs.
57 lines
1.8 KiB
Rust
57 lines
1.8 KiB
Rust
use std::{env, process};
|
|
use wasi_tests::{create_file, open_scratch_directory};
|
|
|
|
unsafe fn test_readlink(dir_fd: wasi::Fd) {
|
|
// Create a file in the scratch directory.
|
|
create_file(dir_fd, "target");
|
|
|
|
// Create a symlink
|
|
wasi::path_symlink("target", dir_fd, "symlink").expect("creating a symlink");
|
|
|
|
// Read link into the buffer
|
|
let buf = &mut [0u8; 10];
|
|
let mut bufused = wasi::path_readlink(dir_fd, "symlink", buf.as_mut_ptr(), buf.len())
|
|
.expect("readlink should succeed");
|
|
assert_eq!(bufused, 6, "should use 6 bytes of the buffer");
|
|
assert_eq!(&buf[..6], b"target", "buffer should contain 'target'");
|
|
assert_eq!(
|
|
&buf[6..],
|
|
&[0u8; 4],
|
|
"the remaining bytes should be untouched"
|
|
);
|
|
|
|
// Read link into smaller buffer than the actual link's length
|
|
let buf = &mut [0u8; 4];
|
|
bufused = wasi::path_readlink(dir_fd, "symlink", buf.as_mut_ptr(), buf.len())
|
|
.expect("readlink should succeed");
|
|
assert_eq!(bufused, 4, "should use all 4 bytes of the buffer");
|
|
assert_eq!(buf, b"targ", "buffer should contain 'targ'");
|
|
|
|
// Clean up.
|
|
wasi::path_unlink_file(dir_fd, "target").expect("removing a file");
|
|
wasi::path_unlink_file(dir_fd, "symlink").expect("removing a file");
|
|
}
|
|
|
|
fn main() {
|
|
let mut args = env::args();
|
|
let prog = args.next().unwrap();
|
|
let arg = if let Some(arg) = args.next() {
|
|
arg
|
|
} else {
|
|
eprintln!("usage: {} <scratch directory>", prog);
|
|
process::exit(1);
|
|
};
|
|
|
|
// Open scratch directory
|
|
let dir_fd = match open_scratch_directory(&arg) {
|
|
Ok(dir_fd) => dir_fd,
|
|
Err(err) => {
|
|
eprintln!("{}", err);
|
|
process::exit(1)
|
|
}
|
|
};
|
|
|
|
// Run the tests.
|
|
unsafe { test_readlink(dir_fd) }
|
|
}
|