tarfs/tar-0.4.41/tests/header/mod.rs
2024-06-13 17:04:34 -05:00

248 lines
7.8 KiB
Rust

use std::fs::{self, File};
use std::io::{self, Write};
use std::path::Path;
use std::{iter, mem, thread, time};
use tempfile::Builder;
use tar::{GnuHeader, Header, HeaderMode};
#[test]
fn default_gnu() {
let mut h = Header::new_gnu();
assert!(h.as_gnu().is_some());
assert!(h.as_gnu_mut().is_some());
assert!(h.as_ustar().is_none());
assert!(h.as_ustar_mut().is_none());
}
#[test]
fn goto_old() {
let mut h = Header::new_old();
assert!(h.as_gnu().is_none());
assert!(h.as_gnu_mut().is_none());
assert!(h.as_ustar().is_none());
assert!(h.as_ustar_mut().is_none());
}
#[test]
fn goto_ustar() {
let mut h = Header::new_ustar();
assert!(h.as_gnu().is_none());
assert!(h.as_gnu_mut().is_none());
assert!(h.as_ustar().is_some());
assert!(h.as_ustar_mut().is_some());
}
#[test]
fn link_name() {
let mut h = Header::new_gnu();
t!(h.set_link_name("foo"));
assert_eq!(t!(h.link_name()).unwrap().to_str(), Some("foo"));
t!(h.set_link_name("../foo"));
assert_eq!(t!(h.link_name()).unwrap().to_str(), Some("../foo"));
t!(h.set_link_name("foo/bar"));
assert_eq!(t!(h.link_name()).unwrap().to_str(), Some("foo/bar"));
t!(h.set_link_name("foo\\ba"));
if cfg!(windows) {
assert_eq!(t!(h.link_name()).unwrap().to_str(), Some("foo/ba"));
} else {
assert_eq!(t!(h.link_name()).unwrap().to_str(), Some("foo\\ba"));
}
let name = "foo\\bar\0";
for (slot, val) in h.as_old_mut().linkname.iter_mut().zip(name.as_bytes()) {
*slot = *val;
}
assert_eq!(t!(h.link_name()).unwrap().to_str(), Some("foo\\bar"));
assert!(h.set_link_name("\0").is_err());
}
#[test]
fn mtime() {
let h = Header::new_gnu();
assert_eq!(t!(h.mtime()), 0);
let h = Header::new_ustar();
assert_eq!(t!(h.mtime()), 0);
let h = Header::new_old();
assert_eq!(t!(h.mtime()), 0);
}
#[test]
fn user_and_group_name() {
let mut h = Header::new_gnu();
t!(h.set_username("foo"));
t!(h.set_groupname("bar"));
assert_eq!(t!(h.username()), Some("foo"));
assert_eq!(t!(h.groupname()), Some("bar"));
h = Header::new_ustar();
t!(h.set_username("foo"));
t!(h.set_groupname("bar"));
assert_eq!(t!(h.username()), Some("foo"));
assert_eq!(t!(h.groupname()), Some("bar"));
h = Header::new_old();
assert_eq!(t!(h.username()), None);
assert_eq!(t!(h.groupname()), None);
assert!(h.set_username("foo").is_err());
assert!(h.set_groupname("foo").is_err());
}
#[test]
fn dev_major_minor() {
let mut h = Header::new_gnu();
t!(h.set_device_major(1));
t!(h.set_device_minor(2));
assert_eq!(t!(h.device_major()), Some(1));
assert_eq!(t!(h.device_minor()), Some(2));
h = Header::new_ustar();
t!(h.set_device_major(1));
t!(h.set_device_minor(2));
assert_eq!(t!(h.device_major()), Some(1));
assert_eq!(t!(h.device_minor()), Some(2));
h.as_ustar_mut().unwrap().dev_minor[0] = 0x7f;
h.as_ustar_mut().unwrap().dev_major[0] = 0x7f;
assert!(h.device_major().is_err());
assert!(h.device_minor().is_err());
h.as_ustar_mut().unwrap().dev_minor[0] = b'g';
h.as_ustar_mut().unwrap().dev_major[0] = b'h';
assert!(h.device_major().is_err());
assert!(h.device_minor().is_err());
h = Header::new_old();
assert_eq!(t!(h.device_major()), None);
assert_eq!(t!(h.device_minor()), None);
assert!(h.set_device_major(1).is_err());
assert!(h.set_device_minor(1).is_err());
}
#[test]
fn set_path() {
let mut h = Header::new_gnu();
t!(h.set_path("foo"));
assert_eq!(t!(h.path()).to_str(), Some("foo"));
t!(h.set_path("foo/"));
assert_eq!(t!(h.path()).to_str(), Some("foo/"));
t!(h.set_path("foo/bar"));
assert_eq!(t!(h.path()).to_str(), Some("foo/bar"));
t!(h.set_path("foo\\bar"));
if cfg!(windows) {
assert_eq!(t!(h.path()).to_str(), Some("foo/bar"));
} else {
assert_eq!(t!(h.path()).to_str(), Some("foo\\bar"));
}
// set_path documentation explictly states it removes any ".", signfying the
// current directory, from the path. This test ensures that documented
// beavhior occurs
t!(h.set_path("./control"));
assert_eq!(t!(h.path()).to_str(), Some("control"));
let long_name = iter::repeat("foo").take(100).collect::<String>();
let medium1 = iter::repeat("foo").take(52).collect::<String>();
let medium2 = iter::repeat("fo/").take(52).collect::<String>();
assert!(h.set_path(&long_name).is_err());
assert!(h.set_path(&medium1).is_err());
assert!(h.set_path(&medium2).is_err());
assert!(h.set_path("\0").is_err());
assert!(h.set_path("..").is_err());
assert!(h.set_path("foo/..").is_err());
assert!(h.set_path("foo/../bar").is_err());
h = Header::new_ustar();
t!(h.set_path("foo"));
assert_eq!(t!(h.path()).to_str(), Some("foo"));
assert!(h.set_path(&long_name).is_err());
assert!(h.set_path(&medium1).is_err());
t!(h.set_path(&medium2));
assert_eq!(t!(h.path()).to_str(), Some(&medium2[..]));
}
#[test]
fn set_ustar_path_hard() {
let mut h = Header::new_ustar();
let p = Path::new("a").join(&vec!["a"; 100].join(""));
t!(h.set_path(&p));
assert_eq!(t!(h.path()), p);
}
#[test]
fn set_metadata_deterministic() {
let td = t!(Builder::new().prefix("tar-rs").tempdir());
let tmppath = td.path().join("tmpfile");
fn mk_header(path: &Path, readonly: bool) -> Result<Header, io::Error> {
let mut file = t!(File::create(path));
t!(file.write_all(b"c"));
let mut perms = t!(file.metadata()).permissions();
perms.set_readonly(readonly);
t!(fs::set_permissions(path, perms));
let mut h = Header::new_ustar();
h.set_metadata_in_mode(&t!(path.metadata()), HeaderMode::Deterministic);
Ok(h)
}
// Create "the same" File twice in a row, one second apart, with differing readonly values.
let one = t!(mk_header(tmppath.as_path(), false));
thread::sleep(time::Duration::from_millis(1050));
let two = t!(mk_header(tmppath.as_path(), true));
// Always expected to match.
assert_eq!(t!(one.size()), t!(two.size()));
assert_eq!(t!(one.path()), t!(two.path()));
assert_eq!(t!(one.mode()), t!(two.mode()));
// Would not match without `Deterministic`.
assert_eq!(t!(one.mtime()), t!(two.mtime()));
assert_eq!(t!(one.mtime()), 1153704088);
// TODO: No great way to validate that these would not be filled, but
// check them anyway.
assert_eq!(t!(one.uid()), t!(two.uid()));
assert_eq!(t!(one.gid()), t!(two.gid()));
}
#[test]
fn extended_numeric_format() {
let mut h: GnuHeader = unsafe { mem::zeroed() };
h.as_header_mut().set_size(42);
assert_eq!(h.size, [48, 48, 48, 48, 48, 48, 48, 48, 48, 53, 50, 0]);
h.as_header_mut().set_size(8589934593);
assert_eq!(h.size, [0x80, 0, 0, 0, 0, 0, 0, 0x02, 0, 0, 0, 1]);
h.size = [0x80, 0, 0, 0, 0, 0, 0, 0x02, 0, 0, 0, 0];
assert_eq!(h.as_header().entry_size().unwrap(), 0x0200000000);
h.size = [48, 48, 48, 48, 48, 48, 48, 48, 48, 53, 51, 0];
assert_eq!(h.as_header().entry_size().unwrap(), 43);
h.as_header_mut().set_gid(42);
assert_eq!(h.gid, [48, 48, 48, 48, 48, 53, 50, 0]);
assert_eq!(h.as_header().gid().unwrap(), 42);
h.as_header_mut().set_gid(0x7fffffffffffffff);
assert_eq!(h.gid, [0xff; 8]);
assert_eq!(h.as_header().gid().unwrap(), 0x7fffffffffffffff);
h.uid = [0x80, 0x00, 0x00, 0x00, 0x12, 0x34, 0x56, 0x78];
assert_eq!(h.as_header().uid().unwrap(), 0x12345678);
h.mtime = [
0x80, 0, 0, 0, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
];
assert_eq!(h.as_header().mtime().unwrap(), 0x0123456789abcdef);
}
#[test]
fn byte_slice_conversion() {
let h = Header::new_gnu();
let b: &[u8] = h.as_bytes();
let b_conv: &[u8] = Header::from_byte_slice(h.as_bytes()).as_bytes();
assert_eq!(b, b_conv);
}