1use nix::errno::Errno;
2use nix::sys::inotify::{AddWatchFlags, InitFlags, Inotify};
3use std::ffi::OsString;
4use std::fs::{rename, File};
5
6#[test]
7pub fn test_inotify() {
8 let instance = Inotify::init(InitFlags::IN_NONBLOCK).unwrap();
9 let tempdir = tempfile::tempdir().unwrap();
10
11 instance
12 .add_watch(tempdir.path(), AddWatchFlags::IN_ALL_EVENTS)
13 .unwrap();
14
15 let events = instance.read_events();
16 assert_eq!(events.unwrap_err(), Errno::EAGAIN);
17
18 File::create(tempdir.path().join("test")).unwrap();
19
20 let events = instance.read_events().unwrap();
21 assert_eq!(events[0].name, Some(OsString::from("test")));
22}
23
24#[test]
25pub fn test_inotify_multi_events() {
26 let instance = Inotify::init(InitFlags::IN_NONBLOCK).unwrap();
27 let tempdir = tempfile::tempdir().unwrap();
28
29 instance
30 .add_watch(tempdir.path(), AddWatchFlags::IN_ALL_EVENTS)
31 .unwrap();
32
33 let events = instance.read_events();
34 assert_eq!(events.unwrap_err(), Errno::EAGAIN);
35
36 File::create(tempdir.path().join("test")).unwrap();
37 rename(tempdir.path().join("test"), tempdir.path().join("test2")).unwrap();
38
39 // Now there should be 5 events in queue:
40 // - IN_CREATE on test
41 // - IN_OPEN on test
42 // - IN_CLOSE_WRITE on test
43 // - IN_MOVED_FROM on test with a cookie
44 // - IN_MOVED_TO on test2 with the same cookie
45
46 let events = instance.read_events().unwrap();
47 assert_eq!(events.len(), 5);
48
49 assert_eq!(events[0].mask, AddWatchFlags::IN_CREATE);
50 assert_eq!(events[0].name, Some(OsString::from("test")));
51
52 assert_eq!(events[1].mask, AddWatchFlags::IN_OPEN);
53 assert_eq!(events[1].name, Some(OsString::from("test")));
54
55 assert_eq!(events[2].mask, AddWatchFlags::IN_CLOSE_WRITE);
56 assert_eq!(events[2].name, Some(OsString::from("test")));
57
58 assert_eq!(events[3].mask, AddWatchFlags::IN_MOVED_FROM);
59 assert_eq!(events[3].name, Some(OsString::from("test")));
60
61 assert_eq!(events[4].mask, AddWatchFlags::IN_MOVED_TO);
62 assert_eq!(events[4].name, Some(OsString::from("test2")));
63
64 assert_eq!(events[3].cookie, events[4].cookie);
65}
66