From b4e3e66236458a8887341b093dec833101a7df77 Mon Sep 17 00:00:00 2001
From: Roy Ivy III <rivy.dev@gmail.com>
Date: Mon, 9 Jan 2023 22:31:48 -0600
Subject: [PATCH] test/uname ~ test for invisible characters in output (ie,
 NULs)

---
 tests/by-util/test_uname.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/by-util/test_uname.rs b/tests/by-util/test_uname.rs
index e96721521..a0d20cab6 100644
--- a/tests/by-util/test_uname.rs
+++ b/tests/by-util/test_uname.rs
@@ -118,3 +118,11 @@ fn test_uname_help() {
         .succeeds()
         .stdout_contains("system information");
 }
+
+#[test]
+fn test_uname_output_for_invisible_chars() {
+    // let re = regex::Regex::new("[^[[:print:]]]").unwrap(); // matches invisible (and emojis)
+    let re = regex::Regex::new("[^[[:print:]]\\p{Other_Symbol}]").unwrap(); // matches invisible (not emojis)
+    let result = new_ucmd!().arg("--all").succeeds();
+    assert_eq!(re.find(result.stdout_str().trim_end()), None);
+}