From a9395f56bed0d727d887555e1720ba5d7137b6f4 Mon Sep 17 00:00:00 2001
From: Diomidis Spinellis <dds@aueb.gr>
Date: Mon, 3 Mar 2025 17:01:54 +0200
Subject: [PATCH] Test required script argument

---
 src/uu/sed/src/sed.rs     |  4 ++++
 tests/by-util/test_sed.rs | 18 ++++++++++++++++--
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/uu/sed/src/sed.rs b/src/uu/sed/src/sed.rs
index be4f890..6c45b4d 100644
--- a/src/uu/sed/src/sed.rs
+++ b/src/uu/sed/src/sed.rs
@@ -4,6 +4,8 @@
 // file that was distributed with this source code.
 
 use clap::{arg, Arg, Command};
+//use clap::builder::OsStr;
+use std::ffi::OsString;
 use std::path::PathBuf;
 use uucore::{error::UResult, format_usage};
 
@@ -12,6 +14,8 @@ const USAGE: &str = "sed [OPTION]... {singular-script} [input-file]...";
 
 #[uucore::main]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
+    // Skip binary name
+    let args: Vec<OsString> = args.skip(1).collect();
     // TODO remove underscore prefix when var is used
     let _matches = uu_app().try_get_matches_from(args)?;
     // TODO
diff --git a/tests/by-util/test_sed.rs b/tests/by-util/test_sed.rs
index ec9855a..51d155a 100644
--- a/tests/by-util/test_sed.rs
+++ b/tests/by-util/test_sed.rs
@@ -11,6 +11,20 @@ fn test_invalid_arg() {
 }
 
 #[test]
-fn test_sed() {
-    new_ucmd!().succeeds();
+fn test_debug() {
+    new_ucmd!().arg("--debug").arg("").succeeds();
+}
+
+#[test]
+fn test_missing_script_argument() {
+    new_ucmd!()
+        .fails()
+        .code_is(1)
+        .stderr_contains("the following required arguments were not provided")
+        .stderr_contains("<script>");
+}
+
+#[test]
+fn test_required_script_argument() {
+    new_ucmd!().arg("").succeeds().code_is(0);
 }