#[test]
fn test_memfd_create() {
    use nix::sys::memfd::memfd_create;
    use nix::sys::memfd::MFdFlags;
    use nix::unistd::lseek;
    use nix::unistd::read;
    use nix::unistd::{write, Whence};

    let fd =
        memfd_create("test_memfd_create_name", MFdFlags::MFD_CLOEXEC).unwrap();
    let contents = b"hello";
    assert_eq!(write(&fd, contents).unwrap(), 5);

    lseek(&fd, 0, Whence::SeekSet).unwrap();

    let mut buf = vec![0_u8; contents.len()];
    assert_eq!(read(&fd, &mut buf).unwrap(), 5);

    assert_eq!(contents, buf.as_slice());
}