Parse all AMD GPU check args (#1586)

scripts/check-docker-amd-gpu.sh

@@ -39,19 +39,19 @@ Environment:
 USAGE
 }
 
-case "${1:-}" in
+for _arg in "$@"; do
+    case "${_arg}" in
         --help|-h)
             _usage
             exit 0
             ;;
-    "")
-        ;;
         *)
-        printf 'Unknown option: %s\n\n' "$1" >&2
+            printf 'Unknown option: %s\n\n' "${_arg}" >&2
             _usage >&2
             exit 1
             ;;
     esac
+done
 
 _find_cmd() {
     if command -v "$1" >/dev/null 2>&1; then

tests/test_amd_gpu_check_args.py

@@ -0,0 +1,21 @@
+import subprocess
+from pathlib import Path
+
+
+SCRIPT = Path(__file__).resolve().parent.parent / "scripts" / "check-docker-amd-gpu.sh"
+
+
+def test_amd_gpu_check_rejects_unknown_extra_arg_before_diagnostics():
+    proc = subprocess.run(
+        ["bash", str(SCRIPT), "--bad-option"],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+
+    assert proc.returncode == 1
+    assert "Unknown option: --bad-option" in proc.stderr
+
+
+def test_amd_gpu_check_shell_syntax():
+    subprocess.run(["bash", "-n", str(SCRIPT)], check=True)