Merge pull request #770 from memorysafety/test-long-username

test sudo with long username

test-framework/sudo-compliance-tests/src/sudo/misc.rs

@@ -200,3 +200,27 @@ fn does_not_panic_on_io_errors_cli_error() -> Result<()> {
 
     Ok(())
 }
+
+#[test]
+#[ignore = "gh771"]
+fn long_username() -> Result<()> {
+    // `useradd` limits usernames to 32 characters
+    // directly write to `/etc/passwd` to work around this limitation
+    let username = "a".repeat(33);
+    let env = Env(SUDOERS_ALL_ALL_NOPASSWD).build()?;
+
+    Command::new("sh")
+        .arg("-c")
+        .arg(format!(
+            "echo {username}:x:1000:1000::/tmp:/bin/sh >> /etc/passwd"
+        ))
+        .output(&env)?
+        .assert_success()?;
+
+    Command::new("sudo")
+        .arg("-u")
+        .arg(username)
+        .arg("true")
+        .output(&env)?
+        .assert_success()
+}