1use crate::*;
2use nix::{
3    errno::Errno,
4    mount::{unmount, MntFlags, Nmount},
5};
6use std::{ffi::CString, fs::File, path::Path};
7use tempfile::tempdir;
8
9#[test]
10fn ok() {
11    require_mount!("nullfs");
12
13    let mountpoint = tempdir().unwrap();
14    let target = tempdir().unwrap();
15    let _sentry = File::create(target.path().join("sentry")).unwrap();
16
17    let fstype = CString::new("fstype").unwrap();
18    let nullfs = CString::new("nullfs").unwrap();
19    Nmount::new()
20        .str_opt(&fstype, &nullfs)
21        .str_opt_owned("fspath", mountpoint.path().to_str().unwrap())
22        .str_opt_owned("target", target.path().to_str().unwrap())
23        .nmount(MntFlags::empty())
24        .unwrap();
25
26    // Now check that the sentry is visible through the mountpoint
27    let exists = Path::exists(&mountpoint.path().join("sentry"));
28
29    // Cleanup the mountpoint before asserting
30    unmount(mountpoint.path(), MntFlags::empty()).unwrap();
31
32    assert!(exists);
33}
34
35#[test]
36fn bad_fstype() {
37    let mountpoint = tempdir().unwrap();
38    let target = tempdir().unwrap();
39    let _sentry = File::create(target.path().join("sentry")).unwrap();
40
41    let e = Nmount::new()
42        .str_opt_owned("fspath", mountpoint.path().to_str().unwrap())
43        .str_opt_owned("target", target.path().to_str().unwrap())
44        .nmount(MntFlags::empty())
45        .unwrap_err();
46
47    assert_eq!(e.error(), Errno::EINVAL);
48    assert_eq!(e.errmsg(), Some("Invalid fstype"));
49}
50