Merge pull request #6690 from LoricAndre/main

fix: add arg count for cp

src/uu/cp/src/cp.rs

@@ -677,6 +677,8 @@ pub fn uu_app() -> Command {
         .arg(
             Arg::new(options::PATHS)
                 .action(ArgAction::Append)
+                .num_args(1..)
+                .required(true)
                 .value_hint(clap::ValueHint::AnyPath)
                 .value_parser(ValueParser::os_string()),
         )

tests/by-util/test_cp.rs

@@ -5751,3 +5751,20 @@ fn test_cp_with_options_backup_and_rem_when_dest_is_symlink() {
     assert!(!at.symlink_exists("inner_dir/sl"));
     assert_eq!(at.read("inner_dir/sl"), "xyz");
 }
+
+#[test]
+fn test_cp_single_file() {
+    let (_at, mut ucmd) = at_and_ucmd!();
+    ucmd.arg(TEST_HELLO_WORLD_SOURCE)
+        .fails()
+        .code_is(1)
+        .stderr_contains("missing destination file");
+}
+
+#[test]
+fn test_cp_no_file() {
+    let (_at, mut ucmd) = at_and_ucmd!();
+    ucmd.fails()
+        .code_is(1)
+        .stderr_contains("error: the following required arguments were not provided:");
+}