mirror of
https://github.com/uutils/coreutils
synced 2024-12-15 07:42:48 +00:00
72 lines
1.9 KiB
Rust
72 lines
1.9 KiB
Rust
use std::io::Read;
|
|
|
|
use crate::common::util::*;
|
|
|
|
/// Run `yes`, capture some of the output, close the pipe, and verify it.
|
|
fn run(args: &[&str], expected: &[u8]) {
|
|
let mut cmd = new_ucmd!();
|
|
let mut child = cmd.args(args).run_no_wait();
|
|
let mut stdout = child.stdout.take().unwrap();
|
|
let mut buf = vec![0; expected.len()];
|
|
stdout.read_exact(&mut buf).unwrap();
|
|
drop(stdout);
|
|
assert!(child.wait().unwrap().success());
|
|
assert_eq!(buf.as_slice(), expected);
|
|
}
|
|
|
|
#[test]
|
|
fn test_simple() {
|
|
run(&[], b"y\ny\ny\ny\n");
|
|
}
|
|
|
|
#[test]
|
|
fn test_args() {
|
|
run(&["a", "bar", "c"], b"a bar c\na bar c\na ba");
|
|
}
|
|
|
|
#[test]
|
|
fn test_long_output() {
|
|
run(&[], "y\n".repeat(512 * 1024).as_bytes());
|
|
}
|
|
|
|
/// Test with an output that seems likely to get mangled in case of incomplete writes.
|
|
#[test]
|
|
fn test_long_odd_output() {
|
|
run(&["abcdef"], "abcdef\n".repeat(1024 * 1024).as_bytes());
|
|
}
|
|
|
|
/// Test with an input that doesn't fit in the standard buffer.
|
|
#[test]
|
|
fn test_long_input() {
|
|
#[cfg(not(windows))]
|
|
const TIMES: usize = 14000;
|
|
// On Windows the command line is limited to 8191 bytes.
|
|
// This is not actually enough to fill the buffer, but it's still nice to
|
|
// try something long.
|
|
#[cfg(windows)]
|
|
const TIMES: usize = 500;
|
|
let arg = "abcdef".repeat(TIMES) + "\n";
|
|
let expected_out = arg.repeat(30);
|
|
run(&[&arg[..arg.len() - 1]], expected_out.as_bytes());
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(any(target_os = "linux", target_os = "freebsd", target_os = "netbsd"))]
|
|
fn test_piped_to_dev_full() {
|
|
use std::fs::OpenOptions;
|
|
|
|
for append in [true, false] {
|
|
{
|
|
let dev_full = OpenOptions::new()
|
|
.write(true)
|
|
.append(append)
|
|
.open("/dev/full")
|
|
.unwrap();
|
|
|
|
new_ucmd!()
|
|
.set_stdout(dev_full)
|
|
.fails()
|
|
.stderr_contains("No space left on device");
|
|
}
|
|
}
|
|
}
|