Automate worker runtime delivery drill

tests/test_worker_runtime_drill.py

@@ -0,0 +1,42 @@
+from __future__ import annotations
+
+import importlib.util
+from pathlib import Path
+import sys
+import unittest
+
+
+SCRIPT = Path(__file__).resolve().parents[1] / "tools" / "checks" / "worker-runtime-drill.py"
+SPEC = importlib.util.spec_from_file_location("worker_runtime_drill", SCRIPT)
+assert SPEC is not None and SPEC.loader is not None
+MODULE = importlib.util.module_from_spec(SPEC)
+sys.modules[SPEC.name] = MODULE
+SPEC.loader.exec_module(MODULE)
+
+
+class WorkerRuntimeDrillTests(unittest.TestCase):
+    def test_redacts_redis_credentials_and_query(self) -> None:
+        self.assertEqual(
+            "rediss://redis.example.test:6380/9",
+            MODULE._redacted_redis_url(
+                "rediss://worker:secret@redis.example.test:6380/9?ssl=true"
+            ),
+        )
+
+    def test_worker_command_uses_solo_default_queue_for_deterministic_drill(self) -> None:
+        command = MODULE._worker_command("/usr/bin/python", "worker-a@%h")
+
+        self.assertEqual("/usr/bin/python", command[0])
+        self.assertIn("solo", command)
+        self.assertIn("default", command)
+        self.assertIn("worker-a@%h", command)
+
+    def test_rejects_implicit_or_non_redis_broker(self) -> None:
+        args = MODULE.build_parser().parse_args(["--redis-url", "memory://"])
+
+        with self.assertRaisesRegex(ValueError, "explicit redis"):
+            MODULE.run_drill(args)
+
+
+if __name__ == "__main__":
+    unittest.main()