Move our tests infra into a dedicated crate

.vscode/cspell.dictionaries/workspace.wordlist.txt

@@ -325,6 +325,7 @@ libc
 libstdbuf
 musl
 tmpd
+uchild
 ucmd
 ucommand
 utmpx
@@ -333,6 +334,7 @@ uucore_procs
 uudoc
 uumain
 uutil
+uutests
 uutils
 
 # * function names

Cargo.toml

@@ -366,6 +366,7 @@ uucore = { version = "0.0.30", package = "uucore", path = "src/uucore" }
 uucore_procs = { version = "0.0.30", package = "uucore_procs", path = "src/uucore_procs" }
 uu_ls = { version = "0.0.30", path = "src/uu/ls" }
 uu_base32 = { version = "0.0.30", path = "src/uu/base32" }
+uutests = { version = "0.0.30", package = "uutests", path = "tests/uutests/" }
 
 [dependencies]
 clap = { workspace = true }
@@ -505,6 +506,7 @@ sha1 = { workspace = true, features = ["std"] }
 tempfile = { workspace = true }
 time = { workspace = true, features = ["local-offset"] }
 unindent = "0.2.3"
+uutests = { workspace = true }
 uucore = { workspace = true, features = [
   "mode",
   "entries",
@@ -515,6 +517,7 @@ uucore = { workspace = true, features = [
 walkdir = { workspace = true }
 hex-literal = "1.0.0"
 rstest = { workspace = true }
+ctor = "0.4.1"
 
 [target.'cfg(any(target_os = "linux", target_os = "android"))'.dev-dependencies]
 procfs = { version = "0.17", default-features = false }

tests/by-util/test_arch.rs

@@ -2,7 +2,9 @@
 //
 // For the full copyright and license information, please view the LICENSE
 // file that was distributed with this source code.
-use crate::common::util::TestScenario;
+use uutests::new_ucmd;
+use uutests::util::TestScenario;
+use uutests::util_name;
 
 #[test]
 fn test_arch() {

tests/by-util/test_base32.rs

@@ -4,7 +4,9 @@
 // file that was distributed with this source code.
 //
 
-use crate::common::util::TestScenario;
+use uutests::new_ucmd;
+use uutests::util::TestScenario;
+use uutests::util_name;
 
 #[test]
 fn test_encode() {

tests/by-util/test_base64.rs

@@ -2,7 +2,9 @@
 //
 // For the full copyright and license information, please view the LICENSE
 // file that was distributed with this source code.
-use crate::common::util::TestScenario;
+use uutests::new_ucmd;
+use uutests::util::TestScenario;
+use uutests::util_name;
 
 #[test]
 fn test_encode() {

tests/by-util/test_basename.rs

@@ -4,9 +4,11 @@
 // file that was distributed with this source code.
 // spell-checker:ignore (words) reallylongexecutable nbaz
 
-use crate::common::util::TestScenario;
 #[cfg(any(unix, target_os = "redox"))]
 use std::ffi::OsStr;
+use uutests::new_ucmd;
+use uutests::util::TestScenario;
+use uutests::util_name;
 
 #[test]
 fn test_help() {

tests/by-util/test_basenc.rs

@@ -5,7 +5,9 @@
 
 // spell-checker: ignore (encodings) lsbf msbf
 
-use crate::common::util::TestScenario;
+use uutests::new_ucmd;
+use uutests::util::TestScenario;
+use uutests::util_name;
 
 #[test]
 fn test_z85_not_padded_decode() {

tests/by-util/test_cat.rs

@@ -4,16 +4,18 @@
 // file that was distributed with this source code.
 // spell-checker:ignore NOFILE nonewline cmdline
 
-use crate::common::util::TestScenario;
-#[cfg(not(windows))]
-use crate::common::util::vec_of_size;
 #[cfg(any(target_os = "linux", target_os = "android"))]
 use rlimit::Resource;
-#[cfg(target_os = "linux")]
+#[cfg(unix)]
 use std::fs::File;
 use std::fs::OpenOptions;
-#[cfg(not(windows))]
 use std::process::Stdio;
+use uutests::at_and_ucmd;
+use uutests::new_ucmd;
+use uutests::util::TestScenario;
+#[cfg(not(windows))]
+use uutests::util::vec_of_size;
+use uutests::util_name;
 
 #[test]
 fn test_output_simple() {
@@ -668,3 +670,40 @@ fn test_appending_same_input_output() {
         .no_stdout()
         .stderr_contains("input file is output file");
 }
+
+#[cfg(unix)]
+#[test]
+fn test_uchild_when_no_capture_reading_from_infinite_source() {
+    use regex::Regex;
+
+    let ts = TestScenario::new("cat");
+
+    let expected_stdout = b"\0".repeat(12345);
+    let mut child = ts
+        .ucmd()
+        .set_stdin(Stdio::from(File::open("/dev/zero").unwrap()))
+        .set_stdout(Stdio::piped())
+        .run_no_wait();
+
+    child
+        .make_assertion()
+        .with_exact_output(12345, 0)
+        .stdout_only_bytes(expected_stdout);
+
+    child
+        .kill()
+        .make_assertion()
+        .with_current_output()
+        .stdout_matches(&Regex::new("[\0].*").unwrap())
+        .no_stderr();
+}
+
+#[test]
+fn test_child_when_pipe_in() {
+    let ts = TestScenario::new("cat");
+    let mut child = ts.ucmd().set_stdin(Stdio::piped()).run_no_wait();
+    child.pipe_in("content");
+    child.wait().unwrap().stdout_only("content").success();
+
+    ts.ucmd().pipe_in("content").run().stdout_is("content");
+}

tests/by-util/test_chcon.rs

@@ -10,7 +10,10 @@ use std::ffi::CString;
 use std::path::Path;
 use std::{io, iter, str};
 
-use crate::common::util::*;
+use uutests::at_and_ucmd;
+use uutests::new_ucmd;
+use uutests::util::TestScenario;
+use uutests::util_name;
 
 #[test]
 fn version() {

tests/by-util/test_chgrp.rs

@@ -4,8 +4,11 @@
 // file that was distributed with this source code.
 // spell-checker:ignore (words) nosuchgroup groupname
 
-use crate::common::util::TestScenario;
 use uucore::process::getegid;
+use uutests::at_and_ucmd;
+use uutests::new_ucmd;
+use uutests::util::TestScenario;
+use uutests::util_name;
 
 #[test]
 fn test_invalid_option() {

tests/by-util/test_chmod.rs

@@ -3,9 +3,13 @@
 // For the full copyright and license information, please view the LICENSE
 // file that was distributed with this source code.
 
-use crate::common::util::{AtPath, TestScenario, UCommand};
 use std::fs::{OpenOptions, Permissions, metadata, set_permissions};
 use std::os::unix::fs::{OpenOptionsExt, PermissionsExt};
+use uutests::at_and_ucmd;
+use uutests::util::{AtPath, TestScenario, UCommand};
+
+use uutests::new_ucmd;
+use uutests::util_name;
 
 static TEST_FILE: &str = "file";
 static REFERENCE_FILE: &str = "reference";

tests/by-util/test_chown.rs

@@ -4,10 +4,11 @@
 // file that was distributed with this source code.
 // spell-checker:ignore (words) agroupthatdoesntexist auserthatdoesntexist cuuser groupname notexisting passgrp
 
-use crate::common::util::{CmdResult, TestScenario, is_ci, run_ucmd_as_root};
 #[cfg(any(target_os = "linux", target_os = "android"))]
 use uucore::process::geteuid;
-
+use uutests::new_ucmd;
+use uutests::util::{CmdResult, TestScenario, is_ci, run_ucmd_as_root};
+use uutests::util_name;
 // Apparently some CI environments have configuration issues, e.g. with 'whoami' and 'id'.
 // If we are running inside the CI and "needle" is in "stderr" skipping this test is
 // considered okay. If we are not inside the CI this calls assert!(result.success).

tests/by-util/test_chroot.rs

@@ -4,9 +4,12 @@
 // file that was distributed with this source code.
 // spell-checker:ignore (words) araba newroot userspec chdir pwd's isroot
 
+use uutests::at_and_ucmd;
+use uutests::new_ucmd;
 #[cfg(not(target_os = "android"))]
-use crate::common::util::is_ci;
-use crate::common::util::{TestScenario, run_ucmd_as_root};
+use uutests::util::is_ci;
+use uutests::util::{TestScenario, run_ucmd_as_root};
+use uutests::util_name;
 
 #[test]
 fn test_invalid_arg() {

tests/by-util/test_cksum.rs

@@ -4,7 +4,10 @@
 // file that was distributed with this source code.
 // spell-checker:ignore (words) asdf algo algos asha mgmt xffname hexa GFYEQ HYQK Yqxb dont
 
-use crate::common::util::TestScenario;
+use uutests::at_and_ucmd;
+use uutests::new_ucmd;
+use uutests::util::TestScenario;
+use uutests::util_name;
 
 const ALGOS: [&str; 11] = [
     "sysv", "bsd", "crc", "md5", "sha1", "sha224", "sha256", "sha384", "sha512", "blake2b", "sm3",
@@ -1681,7 +1684,7 @@ fn test_check_incorrectly_formatted_checksum_keeps_processing_hex() {
 /// This module reimplements the cksum-base64.pl GNU test.
 mod gnu_cksum_base64 {
     use super::*;
-    use crate::common::util::log_info;
+    use uutests::util::log_info;
 
     const PAIRS: [(&str, &str); 12] = [
         ("sysv", "0 0 f"),