fix: refill from expanded candidate history

tests/test_agent_entrypoint.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+import importlib.util
+import os
+import unittest
+from pathlib import Path
+from unittest.mock import patch
+
+
+ROOT_DIR = Path(__file__).resolve().parents[1]
+SPEC = importlib.util.spec_from_file_location("modelhub_agent_entrypoint", ROOT_DIR / "main.py")
+if SPEC is None or SPEC.loader is None:
+    raise RuntimeError("Unable to load the hosted agent entrypoint")
+ENTRYPOINT = importlib.util.module_from_spec(SPEC)
+SPEC.loader.exec_module(ENTRYPOINT)
+
+
+class HostedAgentEntrypointTests(unittest.TestCase):
+    def test_hosted_worker_always_uses_unlimited_cycle_submissions(self) -> None:
+        with patch.dict(
+            os.environ,
+            {
+                "MODELHUB_AGENT_MAX_SUBMITS_PER_RUN": "5",
+                "MODELHUB_AGENT_EXTRA_ARGS": "--max-submits-per-run 3",
+            },
+            clear=False,
+        ):
+            command = ENTRYPOINT._worker_command()
+
+        self.assertEqual(["--max-submits-per-run", "0"], command[-2:])
+
+
+if __name__ == "__main__":
+    unittest.main()