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use nix::dir::{Dir, Type};
use nix::fcntl::OFlag;
use nix::sys::stat::Mode;
use std::fs::File;
use tempfile::tempdir;
#[cfg(test)]
fn flags() -> OFlag {
#[cfg(target_os = "illumos")]
let f = OFlag::O_RDONLY | OFlag::O_CLOEXEC;
#[cfg(not(target_os = "illumos"))]
let f = OFlag::O_RDONLY | OFlag::O_CLOEXEC | OFlag::O_DIRECTORY;
f
}
#[test]
#[allow(clippy::unnecessary_sort_by)] // False positive
fn read() {
let tmp = tempdir().unwrap();
File::create(&tmp.path().join("foo")).unwrap();
::std::os::unix::fs::symlink("foo", tmp.path().join("bar")).unwrap();
let mut dir = Dir::open(tmp.path(), flags(), Mode::empty()).unwrap();
let mut entries: Vec<_> = dir.iter().map(|e| e.unwrap()).collect();
entries.sort_by(|a, b| a.file_name().cmp(b.file_name()));
let entry_names: Vec<_> = entries
.iter()
.map(|e| e.file_name().to_str().unwrap().to_owned())
.collect();
assert_eq!(&entry_names[..], &[".", "..", "bar", "foo"]);
// Check file types. The system is allowed to return DT_UNKNOWN (aka None here) but if it does
// return a type, ensure it's correct.
assert!(&[Some(Type::Directory), None].contains(&entries[0].file_type())); // .: dir
assert!(&[Some(Type::Directory), None].contains(&entries[1].file_type())); // ..: dir
assert!(&[Some(Type::Symlink), None].contains(&entries[2].file_type())); // bar: symlink
assert!(&[Some(Type::File), None].contains(&entries[3].file_type())); // foo: regular file
}
#[test]
fn rewind() {
let tmp = tempdir().unwrap();
let mut dir = Dir::open(tmp.path(), flags(), Mode::empty()).unwrap();
let entries1: Vec<_> = dir.iter().map(|e| e.unwrap().file_name().to_owned()).collect();
let entries2: Vec<_> = dir.iter().map(|e| e.unwrap().file_name().to_owned()).collect();
let entries3: Vec<_> = dir.into_iter().map(|e| e.unwrap().file_name().to_owned()).collect();
assert_eq!(entries1, entries2);
assert_eq!(entries2, entries3);
}
#[cfg(not(target_os = "haiku"))]
#[test]
fn ebadf() {
assert_eq!(Dir::from_fd(-1).unwrap_err(), nix::Error::EBADF);
}
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