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use nix::sys::inotify::{AddWatchFlags,InitFlags,Inotify};
use nix::errno::Errno;
use std::ffi::OsString;
use std::fs::{rename, File};
#[test]
pub fn test_inotify() {
let instance = Inotify::init(InitFlags::IN_NONBLOCK)
.unwrap();
let tempdir = tempfile::tempdir().unwrap();
instance.add_watch(tempdir.path(), AddWatchFlags::IN_ALL_EVENTS).unwrap();
let events = instance.read_events();
assert_eq!(events.unwrap_err(), Errno::EAGAIN);
File::create(tempdir.path().join("test")).unwrap();
let events = instance.read_events().unwrap();
assert_eq!(events[0].name, Some(OsString::from("test")));
}
#[test]
pub fn test_inotify_multi_events() {
let instance = Inotify::init(InitFlags::IN_NONBLOCK)
.unwrap();
let tempdir = tempfile::tempdir().unwrap();
instance.add_watch(tempdir.path(), AddWatchFlags::IN_ALL_EVENTS).unwrap();
let events = instance.read_events();
assert_eq!(events.unwrap_err(), Errno::EAGAIN);
File::create(tempdir.path().join("test")).unwrap();
rename(tempdir.path().join("test"), tempdir.path().join("test2")).unwrap();
// Now there should be 5 events in queue:
// - IN_CREATE on test
// - IN_OPEN on test
// - IN_CLOSE_WRITE on test
// - IN_MOVED_FROM on test with a cookie
// - IN_MOVED_TO on test2 with the same cookie
let events = instance.read_events().unwrap();
assert_eq!(events.len(), 5);
assert_eq!(events[0].mask, AddWatchFlags::IN_CREATE);
assert_eq!(events[0].name, Some(OsString::from("test")));
assert_eq!(events[1].mask, AddWatchFlags::IN_OPEN);
assert_eq!(events[1].name, Some(OsString::from("test")));
assert_eq!(events[2].mask, AddWatchFlags::IN_CLOSE_WRITE);
assert_eq!(events[2].name, Some(OsString::from("test")));
assert_eq!(events[3].mask, AddWatchFlags::IN_MOVED_FROM);
assert_eq!(events[3].name, Some(OsString::from("test")));
assert_eq!(events[4].mask, AddWatchFlags::IN_MOVED_TO);
assert_eq!(events[4].name, Some(OsString::from("test2")));
assert_eq!(events[3].cookie, events[4].cookie);
}
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