coreutils/tests/by-util/test_du.rs
2022-08-09 10:36:23 +02:00

816 lines
22 KiB
Rust

// * This file is part of the uutils coreutils package.
// *
// * For the full copyright and license information, please view the LICENSE
// * file that was distributed with this source code.
// spell-checker:ignore (paths) sublink subwords azerty azeaze xcwww azeaz amaz azea qzerty tazerty
#[cfg(not(windows))]
use regex::Regex;
#[cfg(not(windows))]
use std::io::Write;
use crate::common::util::*;
const SUB_DIR: &str = "subdir/deeper";
const SUB_DEEPER_DIR: &str = "subdir/deeper/deeper_dir";
const SUB_DIR_LINKS: &str = "subdir/links";
const SUB_DIR_LINKS_DEEPER_SYM_DIR: &str = "subdir/links/deeper_dir";
const SUB_FILE: &str = "subdir/links/subwords.txt";
const SUB_LINK: &str = "subdir/links/sublink.txt";
#[test]
fn test_du_basics() {
new_ucmd!().succeeds().no_stderr();
}
#[cfg(target_vendor = "apple")]
fn _du_basics(s: &str) {
let answer = "32\t./subdir
8\t./subdir/deeper
24\t./subdir/links
40\t.
";
assert_eq!(s, answer);
}
#[cfg(not(target_vendor = "apple"))]
fn _du_basics(s: &str) {
let answer = "28\t./subdir
8\t./subdir/deeper
16\t./subdir/links
36\t.
";
assert_eq!(s, answer);
}
#[test]
fn test_du_basics_subdir() {
let ts = TestScenario::new(util_name!());
let result = ts.ucmd().arg(SUB_DIR).succeeds();
#[cfg(any(target_os = "linux", target_os = "android"))]
{
let result_reference = unwrap_or_return!(expected_result(&ts, &[SUB_DIR]));
if result_reference.succeeded() {
assert_eq!(result.stdout_str(), result_reference.stdout_str());
return;
}
}
_du_basics_subdir(result.stdout_str());
}
#[cfg(target_vendor = "apple")]
fn _du_basics_subdir(s: &str) {
assert_eq!(s, "4\tsubdir/deeper/deeper_dir\n8\tsubdir/deeper\n");
}
#[cfg(target_os = "windows")]
fn _du_basics_subdir(s: &str) {
assert_eq!(s, "0\tsubdir/deeper\\deeper_dir\n0\tsubdir/deeper\n");
}
#[cfg(target_os = "freebsd")]
fn _du_basics_subdir(s: &str) {
assert_eq!(s, "8\tsubdir/deeper/deeper_dir\n16\tsubdir/deeper\n");
}
#[cfg(all(
not(target_vendor = "apple"),
not(target_os = "windows"),
not(target_os = "freebsd")
))]
fn _du_basics_subdir(s: &str) {
// MS-WSL linux has altered expected output
if !uucore::os::is_wsl_1() {
assert_eq!(s, "8\tsubdir/deeper\n");
} else {
assert_eq!(s, "0\tsubdir/deeper\n");
}
}
#[test]
fn test_du_invalid_size() {
let args = &["block-size", "threshold"];
let ts = TestScenario::new(util_name!());
for s in args {
ts.ucmd()
.arg(format!("--{}=1fb4t", s))
.arg("/tmp")
.fails()
.code_is(1)
.stderr_only(format!("du: invalid suffix in --{} argument '1fb4t'", s));
ts.ucmd()
.arg(format!("--{}=x", s))
.arg("/tmp")
.fails()
.code_is(1)
.stderr_only(format!("du: invalid --{} argument 'x'", s));
#[cfg(not(target_pointer_width = "128"))]
ts.ucmd()
.arg(format!("--{}=1Y", s))
.arg("/tmp")
.fails()
.code_is(1)
.stderr_only(format!("du: --{} argument '1Y' too large", s));
}
}
#[test]
fn test_du_basics_bad_name() {
new_ucmd!()
.arg("bad_name")
.succeeds() // TODO: replace with ".fails()" once `du` is fixed
.stderr_only("du: bad_name: No such file or directory\n");
}
#[test]
fn test_du_soft_link() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.symlink_file(SUB_FILE, SUB_LINK);
let result = ts.ucmd().arg(SUB_DIR_LINKS).succeeds();
#[cfg(any(target_os = "linux", target_os = "android"))]
{
let result_reference = unwrap_or_return!(expected_result(&ts, &[SUB_DIR_LINKS]));
if result_reference.succeeded() {
assert_eq!(result.stdout_str(), result_reference.stdout_str());
return;
}
}
_du_soft_link(result.stdout_str());
}
#[cfg(target_vendor = "apple")]
fn _du_soft_link(s: &str) {
// 'macos' host variants may have `du` output variation for soft links
assert!((s == "12\tsubdir/links\n") || (s == "16\tsubdir/links\n"));
}
#[cfg(target_os = "windows")]
fn _du_soft_link(s: &str) {
assert_eq!(s, "8\tsubdir/links\n");
}
#[cfg(target_os = "freebsd")]
fn _du_soft_link(s: &str) {
assert_eq!(s, "16\tsubdir/links\n");
}
#[cfg(all(
not(target_vendor = "apple"),
not(target_os = "windows"),
not(target_os = "freebsd")
))]
fn _du_soft_link(s: &str) {
// MS-WSL linux has altered expected output
if !uucore::os::is_wsl_1() {
assert_eq!(s, "16\tsubdir/links\n");
} else {
assert_eq!(s, "8\tsubdir/links\n");
}
}
#[cfg(not(target_os = "android"))]
#[test]
fn test_du_hard_link() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.hard_link(SUB_FILE, SUB_LINK);
let result = ts.ucmd().arg(SUB_DIR_LINKS).succeeds();
#[cfg(target_os = "linux")]
{
let result_reference = unwrap_or_return!(expected_result(&ts, &[SUB_DIR_LINKS]));
if result_reference.succeeded() {
assert_eq!(result.stdout_str(), result_reference.stdout_str());
return;
}
}
// We do not double count hard links as the inodes are identical
_du_hard_link(result.stdout_str());
}
#[cfg(target_vendor = "apple")]
fn _du_hard_link(s: &str) {
assert_eq!(s, "12\tsubdir/links\n");
}
#[cfg(target_os = "windows")]
fn _du_hard_link(s: &str) {
assert_eq!(s, "8\tsubdir/links\n");
}
#[cfg(target_os = "freebsd")]
fn _du_hard_link(s: &str) {
assert_eq!(s, "16\tsubdir/links\n");
}
#[cfg(all(
not(target_vendor = "apple"),
not(target_os = "windows"),
not(target_os = "freebsd")
))]
fn _du_hard_link(s: &str) {
// MS-WSL linux has altered expected output
if !uucore::os::is_wsl_1() {
assert_eq!(s, "16\tsubdir/links\n");
} else {
assert_eq!(s, "8\tsubdir/links\n");
}
}
#[test]
fn test_du_d_flag() {
let ts = TestScenario::new(util_name!());
let result = ts.ucmd().arg("-d1").succeeds();
#[cfg(any(target_os = "linux", target_os = "android"))]
{
let result_reference = unwrap_or_return!(expected_result(&ts, &["-d1"]));
if result_reference.succeeded() {
assert_eq!(result.stdout_str(), result_reference.stdout_str());
return;
}
}
_du_d_flag(result.stdout_str());
}
#[cfg(target_vendor = "apple")]
fn _du_d_flag(s: &str) {
assert_eq!(s, "20\t./subdir\n24\t.\n");
}
#[cfg(target_os = "windows")]
fn _du_d_flag(s: &str) {
assert_eq!(s, "8\t.\\subdir\n8\t.\n");
}
#[cfg(target_os = "freebsd")]
fn _du_d_flag(s: &str) {
assert_eq!(s, "36\t./subdir\n44\t.\n");
}
#[cfg(all(
not(target_vendor = "apple"),
not(target_os = "windows"),
not(target_os = "freebsd")
))]
fn _du_d_flag(s: &str) {
// MS-WSL linux has altered expected output
if !uucore::os::is_wsl_1() {
assert_eq!(s, "28\t./subdir\n36\t.\n");
} else {
assert_eq!(s, "8\t./subdir\n8\t.\n");
}
}
#[test]
fn test_du_dereference() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.symlink_dir(SUB_DEEPER_DIR, SUB_DIR_LINKS_DEEPER_SYM_DIR);
let result = ts.ucmd().arg("-L").arg(SUB_DIR_LINKS).succeeds();
#[cfg(any(target_os = "linux", target_os = "android"))]
{
let result_reference = unwrap_or_return!(expected_result(&ts, &["-L", SUB_DIR_LINKS]));
if result_reference.succeeded() {
assert_eq!(result.stdout_str(), result_reference.stdout_str());
return;
}
}
_du_dereference(result.stdout_str());
}
#[cfg(target_vendor = "apple")]
fn _du_dereference(s: &str) {
assert_eq!(s, "4\tsubdir/links/deeper_dir\n16\tsubdir/links\n");
}
#[cfg(target_os = "windows")]
fn _du_dereference(s: &str) {
assert_eq!(s, "0\tsubdir/links\\deeper_dir\n8\tsubdir/links\n");
}
#[cfg(target_os = "freebsd")]
fn _du_dereference(s: &str) {
assert_eq!(s, "8\tsubdir/links/deeper_dir\n24\tsubdir/links\n");
}
#[cfg(all(
not(target_vendor = "apple"),
not(target_os = "windows"),
not(target_os = "freebsd")
))]
fn _du_dereference(s: &str) {
// MS-WSL linux has altered expected output
if !uucore::os::is_wsl_1() {
assert_eq!(s, "8\tsubdir/links/deeper_dir\n24\tsubdir/links\n");
} else {
assert_eq!(s, "0\tsubdir/links/deeper_dir\n8\tsubdir/links\n");
}
}
#[test]
fn test_du_inodes_basic() {
let ts = TestScenario::new(util_name!());
let result = ts.ucmd().arg("--inodes").succeeds();
#[cfg(any(target_os = "linux", target_os = "android"))]
{
let result_reference = unwrap_or_return!(expected_result(&ts, &["--inodes"]));
assert_eq!(result.stdout_str(), result_reference.stdout_str());
}
#[cfg(not(any(target_os = "linux", target_os = "android")))]
_du_inodes_basic(result.stdout_str());
}
#[cfg(target_os = "windows")]
fn _du_inodes_basic(s: &str) {
assert_eq!(
s,
"2\t.\\subdir\\deeper\\deeper_dir
4\t.\\subdir\\deeper
3\t.\\subdir\\links
8\t.\\subdir
11\t.
"
);
}
#[cfg(not(target_os = "windows"))]
fn _du_inodes_basic(s: &str) {
assert_eq!(
s,
"2\t./subdir/deeper/deeper_dir
4\t./subdir/deeper
3\t./subdir/links
8\t./subdir
11\t.
"
);
}
#[test]
fn test_du_inodes() {
let ts = TestScenario::new(util_name!());
ts.ucmd()
.arg("--summarize")
.arg("--inodes")
.succeeds()
.stdout_only("11\t.\n");
let result = ts.ucmd().arg("--separate-dirs").arg("--inodes").succeeds();
#[cfg(target_os = "windows")]
result.stdout_contains("3\t.\\subdir\\links\n");
#[cfg(not(target_os = "windows"))]
result.stdout_contains("3\t./subdir/links\n");
result.stdout_contains("3\t.\n");
#[cfg(any(target_os = "linux", target_os = "android"))]
{
let result_reference =
unwrap_or_return!(expected_result(&ts, &["--separate-dirs", "--inodes"]));
assert_eq!(result.stdout_str(), result_reference.stdout_str());
}
}
#[test]
fn test_du_h_flag_empty_file() {
new_ucmd!()
.arg("-h")
.arg("empty.txt")
.succeeds()
.stdout_only("0\tempty.txt\n");
}
#[cfg(feature = "touch")]
#[test]
fn test_du_time() {
let ts = TestScenario::new(util_name!());
ts.ccmd("touch")
.arg("-a")
.arg("-t")
.arg("201505150000")
.arg("date_test")
.succeeds();
ts.ccmd("touch")
.arg("-m")
.arg("-t")
.arg("201606160000")
.arg("date_test")
.succeeds();
let result = ts.ucmd().arg("--time").arg("date_test").succeeds();
result.stdout_only("0\t2016-06-16 00:00\tdate_test\n");
let result = ts.ucmd().arg("--time=atime").arg("date_test").succeeds();
result.stdout_only("0\t2015-05-15 00:00\tdate_test\n");
let result = ts.ucmd().arg("--time=ctime").arg("date_test").succeeds();
result.stdout_only("0\t2016-06-16 00:00\tdate_test\n");
if birth_supported() {
use regex::Regex;
let re_birth =
Regex::new(r"0\t[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}\tdate_test").unwrap();
let result = ts.ucmd().arg("--time=birth").arg("date_test").succeeds();
result.stdout_matches(&re_birth);
}
}
#[cfg(feature = "touch")]
fn birth_supported() -> bool {
let ts = TestScenario::new(util_name!());
let m = match std::fs::metadata(ts.fixtures.subdir) {
Ok(m) => m,
Err(e) => panic!("{}", e),
};
m.created().is_ok()
}
#[cfg(not(target_os = "windows"))]
#[cfg(feature = "chmod")]
#[test]
fn test_du_no_permission() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.mkdir_all(SUB_DIR_LINKS);
ts.ccmd("chmod").arg("-r").arg(SUB_DIR_LINKS).succeeds();
let result = ts.ucmd().arg(SUB_DIR_LINKS).fails();
result.stderr_contains("du: cannot read directory 'subdir/links': Permission denied");
#[cfg(any(target_os = "linux", target_os = "android"))]
{
let result_reference = unwrap_or_return!(expected_result(&ts, &[SUB_DIR_LINKS]));
if result_reference
.stderr_str()
.contains("du: cannot read directory 'subdir/links': Permission denied")
{
assert_eq!(result.stdout_str(), result_reference.stdout_str());
return;
}
}
_du_no_permission(result.stdout_str());
}
#[cfg(not(target_os = "windows"))]
#[cfg(feature = "chmod")]
#[test]
fn test_du_no_exec_permission() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.mkdir_all("d/no-x/y");
ts.ccmd("chmod").arg("u=rw").arg("d/no-x").succeeds();
let result = ts.ucmd().arg("d/no-x").fails();
result.stderr_contains("du: cannot access 'd/no-x/y': Permission denied");
}
#[cfg(target_vendor = "apple")]
fn _du_no_permission(s: &str) {
assert_eq!(s, "0\tsubdir/links\n");
}
#[cfg(all(not(target_vendor = "apple"), not(target_os = "windows")))]
fn _du_no_permission(s: &str) {
assert_eq!(s, "4\tsubdir/links\n");
}
#[test]
fn test_du_one_file_system() {
let ts = TestScenario::new(util_name!());
let result = ts.ucmd().arg("-x").arg(SUB_DIR).succeeds();
#[cfg(any(target_os = "linux", target_os = "android"))]
{
let result_reference = unwrap_or_return!(expected_result(&ts, &["-x", SUB_DIR]));
if result_reference.succeeded() {
assert_eq!(result.stdout_str(), result_reference.stdout_str());
return;
}
}
_du_basics_subdir(result.stdout_str());
}
#[test]
fn test_du_threshold() {
let ts = TestScenario::new(util_name!());
let threshold = if cfg!(windows) { "7K" } else { "10K" };
ts.ucmd()
.arg(format!("--threshold={}", threshold))
.succeeds()
.stdout_contains("links")
.stdout_does_not_contain("deeper_dir");
ts.ucmd()
.arg(format!("--threshold=-{}", threshold))
.succeeds()
.stdout_does_not_contain("links")
.stdout_contains("deeper_dir");
}
#[test]
fn test_du_apparent_size() {
let ts = TestScenario::new(util_name!());
let result = ts.ucmd().arg("--apparent-size").succeeds();
#[cfg(any(target_os = "linux", target_os = "android"))]
{
let result_reference = unwrap_or_return!(expected_result(&ts, &["--apparent-size"]));
assert_eq!(result.stdout_str(), result_reference.stdout_str());
}
#[cfg(not(any(target_os = "linux", target_os = "android")))]
_du_apparent_size(result.stdout_str());
}
#[cfg(target_os = "windows")]
fn _du_apparent_size(s: &str) {
assert_eq!(
s,
"1\t.\\subdir\\deeper\\deeper_dir
1\t.\\subdir\\deeper
6\t.\\subdir\\links
6\t.\\subdir
6\t.
"
);
}
#[cfg(target_vendor = "apple")]
fn _du_apparent_size(s: &str) {
assert_eq!(
s,
"1\t./subdir/deeper/deeper_dir
1\t./subdir/deeper
6\t./subdir/links
6\t./subdir
6\t.
"
);
}
#[cfg(target_os = "freebsd")]
fn _du_apparent_size(s: &str) {
assert_eq!(
s,
"1\t./subdir/deeper/deeper_dir
2\t./subdir/deeper
6\t./subdir/links
8\t./subdir
8\t.
"
);
}
#[cfg(all(
not(target_vendor = "apple"),
not(target_os = "windows"),
not(target_os = "freebsd")
))]
fn _du_apparent_size(s: &str) {
assert_eq!(
s,
"5\t./subdir/deeper/deeper_dir
9\t./subdir/deeper
10\t./subdir/links
22\t./subdir
26\t.
"
);
}
#[test]
fn test_du_bytes() {
let ts = TestScenario::new(util_name!());
let result = ts.ucmd().arg("--bytes").succeeds();
#[cfg(any(target_os = "linux", target_os = "android"))]
{
let result_reference = unwrap_or_return!(expected_result(&ts, &["--bytes"]));
assert_eq!(result.stdout_str(), result_reference.stdout_str());
}
#[cfg(target_os = "windows")]
result.stdout_contains("5145\t.\\subdir\n");
#[cfg(target_vendor = "apple")]
result.stdout_contains("5625\t./subdir\n");
#[cfg(target_os = "freebsd")]
result.stdout_contains("7193\t./subdir\n");
#[cfg(all(
not(target_vendor = "apple"),
not(target_os = "windows"),
not(target_os = "freebsd"),
not(target_os = "linux"),
not(target_os = "android"),
))]
result.stdout_contains("21529\t./subdir\n");
}
#[test]
fn test_du_exclude() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.symlink_dir(SUB_DEEPER_DIR, SUB_DIR_LINKS_DEEPER_SYM_DIR);
at.mkdir_all(SUB_DIR_LINKS);
ts.ucmd()
.arg("--exclude=subdir")
.arg(SUB_DEEPER_DIR)
.succeeds()
.stdout_contains("subdir/deeper/deeper_dir");
ts.ucmd()
.arg("--exclude=subdir")
.arg("subdir")
.succeeds()
.stdout_is("");
ts.ucmd()
.arg("--exclude=subdir")
.arg("--verbose")
.arg("subdir")
.succeeds()
.stdout_contains("'subdir' ignored");
}
#[test]
// Disable on Windows because we are looking for /
// And the tests would be more complex if we have to support \ too
#[cfg(not(target_os = "windows"))]
fn test_du_exclude_2() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.mkdir_all("azerty/xcwww/azeaze");
let result = ts.ucmd().arg("azerty").succeeds();
let path_regexp = r"(.*)azerty/xcwww/azeaze(.*)azerty/xcwww(.*)azerty";
let re = Regex::new(path_regexp).unwrap();
assert!(re.is_match(result.stdout_str().replace('\n', "").trim()));
// Exact match
ts.ucmd()
.arg("--exclude=azeaze")
.arg("azerty")
.succeeds()
.stdout_does_not_contain("azerty/xcwww/azeaze");
// Partial match and NOT a glob
ts.ucmd()
.arg("--exclude=azeaz")
.arg("azerty")
.succeeds()
.stdout_contains("azerty/xcwww/azeaze");
// Partial match and a various glob
ts.ucmd()
.arg("--exclude=azea?")
.arg("azerty")
.succeeds()
.stdout_contains("azerty/xcwww/azeaze");
ts.ucmd()
.arg("--exclude=azea{z,b}")
.arg("azerty")
.succeeds()
.stdout_contains("azerty/xcwww/azeaze");
ts.ucmd()
.arg("--exclude=azea*")
.arg("azerty")
.succeeds()
.stdout_does_not_contain("azerty/xcwww/azeaze");
ts.ucmd()
.arg("--exclude=azeaz?")
.arg("azerty")
.succeeds()
.stdout_does_not_contain("azerty/xcwww/azeaze");
}
#[test]
// Disable on Windows because we are looking for /
// And the tests would be more complex if we have to support \ too
#[cfg(not(target_os = "windows"))]
fn test_du_exclude_mix() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
let mut file1 = at.make_file("file-ignore1");
file1.write_all(b"azeaze").unwrap();
let mut file2 = at.make_file("file-ignore2");
file2.write_all(b"amaz?ng").unwrap();
at.mkdir_all("azerty/xcwww/azeaze");
at.mkdir_all("azerty/xcwww/qzerty");
at.mkdir_all("azerty/xcwww/amazing");
ts.ucmd()
.arg("azerty")
.succeeds()
.stdout_contains("azerty/xcwww/azeaze");
ts.ucmd()
.arg("--exclude=azeaze")
.arg("azerty")
.succeeds()
.stdout_does_not_contain("azerty/xcwww/azeaze");
// Just exclude one file name
let result = ts.ucmd().arg("--exclude=qzerty").arg("azerty").succeeds();
assert!(!result.stdout_str().contains("qzerty"));
assert!(result.stdout_str().contains("azerty"));
assert!(result.stdout_str().contains("xcwww"));
// Exclude from file
let result = ts
.ucmd()
.arg("--exclude-from=file-ignore1")
.arg("azerty")
.succeeds();
assert!(!result.stdout_str().contains("azeaze"));
assert!(result.stdout_str().contains("qzerty"));
assert!(result.stdout_str().contains("xcwww"));
// Mix two files and string
let result = ts
.ucmd()
.arg("--exclude=qzerty")
.arg("--exclude-from=file-ignore1")
.arg("--exclude-from=file-ignore2")
.arg("azerty")
.succeeds();
assert!(!result.stdout_str().contains("amazing"));
assert!(!result.stdout_str().contains("qzerty"));
assert!(!result.stdout_str().contains("azeaze"));
assert!(result.stdout_str().contains("xcwww"));
}
#[test]
// Disable on Windows because we are looking for /
// And the tests would be more complex if we have to support \ too
#[cfg(not(target_os = "windows"))]
fn test_du_complex_exclude_patterns() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.mkdir_all("azerty/xcwww/azeaze");
at.mkdir_all("azerty/xcwww/qzerty");
at.mkdir_all("azerty/xcwww/amazing");
// Negation in glob should work with both ^ and !
let result = ts
.ucmd()
.arg("--exclude=azerty/*/[^q]*")
.arg("azerty")
.succeeds();
assert!(!result.stdout_str().contains("amazing"));
assert!(result.stdout_str().contains("qzerty"));
assert!(!result.stdout_str().contains("azeaze"));
assert!(result.stdout_str().contains("xcwww"));
let result = ts
.ucmd()
.arg("--exclude=azerty/*/[!q]*")
.arg("azerty")
.succeeds();
assert!(!result.stdout_str().contains("amazing"));
assert!(result.stdout_str().contains("qzerty"));
assert!(!result.stdout_str().contains("azeaze"));
assert!(result.stdout_str().contains("xcwww"));
}
#[test]
fn test_du_exclude_several_components() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.mkdir_all("a/b/c");
at.mkdir_all("a/x/y");
at.mkdir_all("a/u/y");
// Exact match
let result = ts
.ucmd()
.arg("--exclude=a/u")
.arg("--exclude=a/b")
.arg("a")
.succeeds();
assert!(!result.stdout_str().contains("a/u"));
assert!(!result.stdout_str().contains("a/b"));
}
#[test]
fn test_du_exclude_invalid_syntax() {
let ts = TestScenario::new(util_name!());
let at = &ts.fixtures;
at.mkdir_all("azerty/xcwww/azeaze");
ts.ucmd()
.arg("--exclude=a[ze")
.arg("azerty")
.fails()
.stderr_contains("du: Invalid exclude syntax");
}