From 206aa80fe07a36b0980440931ec29672eb359fc3 Mon Sep 17 00:00:00 2001
From: Ehtasham-Yasin <ehtasham.yasin.dev@gmail.com>
Date: Wed, 30 Sep 2026 14:04:36 +0200
Subject: [PATCH] fix: fail on unknown x.py commands

Signed-off-by: Ehtasham-Yasin <ehtasham.yasin.dev@gmail.com>
---
 tools/test_x.py | 28 ++++++++++++++++++++++++++++
 x.py            |  1 +
 2 files changed, 29 insertions(+)
 create mode 100644 tools/test_x.py

diff --git a/tools/test_x.py b/tools/test_x.py
new file mode 100644
index 00000000..3fa90a79
--- /dev/null
+++ b/tools/test_x.py
@@ -0,0 +1,28 @@
+"""Tests for the repository build driver."""
+
+import subprocess
+import sys
+import unittest
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+class XPyTests(unittest.TestCase):
+    def test_unknown_command_fails_without_running_a_build(self):
+        result = subprocess.run(
+            [sys.executable, str(ROOT / "x.py"), "unrecognized-audit-command"],
+            cwd=ROOT,
+            capture_output=True,
+            text=True,
+            check=False,
+        )
+
+        self.assertEqual(result.returncode, 1)
+        self.assertIn("Unknown command: unrecognized-audit-command", result.stdout)
+        self.assertIn("Usage: x.py", result.stdout)
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/x.py b/x.py
index ce8df546..d08cb8a7 100644
--- a/x.py
+++ b/x.py
@@ -1337,6 +1337,7 @@ def main():
     else:
         print("Unknown command:", cmd)
         print("Usage: x.py [install | build | package | release | clean | gui] [target...]")
+        sys.exit(1)
 
 if __name__ == "__main__":
     main()