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test_tail: add test_follow_name_truncate4

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Jan Scheer 2022-06-02 16:55:04 +02:00
parent 8ee806a444
commit f3aacac9d8
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1 changed files with 34 additions and 3 deletions
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37
tests/by-util/test_tail.rs
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@ -3,7 +3,7 @@
// * For the full copyright and license information, please view the LICENSE
// * file that was distributed with this source code.
// spell-checker:ignore (ToDO) abcdefghijklmnopqrstuvwxyz efghijklmnopqrstuvwxyz vwxyz emptyfile logfile file siette ocho nueve diez
// spell-checker:ignore (ToDO) abcdefghijklmnopqrstuvwxyz efghijklmnopqrstuvwxyz vwxyz emptyfile file siette ocho nueve diez
// spell-checker:ignore (libs) kqueue
// spell-checker:ignore (jargon) tailable untailable
@ -22,8 +22,8 @@ use std::time::Duration;
#[cfg(target_os = "linux")]
pub static BACKEND: &str = "inotify";
#[cfg(all(unix, not(target_os = "linux")))]
pub static BACKEND: &str = "kqueue";
// #[cfg(all(unix, not(target_os = "linux")))]
// pub static BACKEND: &str = "kqueue";
static FOOBAR_TXT: &str = "foobar.txt";
static FOOBAR_2_TXT: &str = "foobar2.txt";
@ -1709,6 +1709,37 @@ fn test_follow_name_truncate3() {
assert!(buf_stderr.is_empty());
}
#[test]
fn test_follow_name_truncate4() {
// Truncating a file with the same content it already has should not trigger a truncate event
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
let mut args = vec!["-s.1", "--max-unchanged-stats=1", "-F", "file"];
let delay = 100;
for _ in 0..2 {
at.append("file", "foobar\n");
let mut p = ts.ucmd().set_stdin(Stdio::null()).args(&args).run_no_wait();
sleep(Duration::from_millis(100));
at.truncate("file", "foobar\n");
sleep(Duration::from_millis(delay));
p.kill().unwrap();
sleep(Duration::from_millis(delay));
let (buf_stdout, buf_stderr) = take_stdout_stderr(&mut p);
assert!(buf_stderr.is_empty());
assert_eq!(buf_stdout, "foobar\n");
at.remove("file");
args.push("---disable-inotify");
}
}
#[test]
#[cfg(all(unix, not(any(target_os = "android", target_vendor = "apple"))))] // FIXME: make this work not just on Linux
fn test_follow_name_move_create() {