fix: game service api block when a game is running

tests/test_agents.py

@@ -0,0 +1,60 @@
+import json
+import unittest
+from unittest.mock import patch
+from urllib.error import URLError
+
+from texas_holdem.agents import HttpAgent, normalise_http_agent_endpoint
+
+
+class FakeResponse:
+    def __init__(self, payload: dict[str, object]) -> None:
+        self.payload = payload
+
+    def read(self) -> bytes:
+        return json.dumps(self.payload).encode("utf-8")
+
+    def __enter__(self) -> "FakeResponse":
+        return self
+
+    def __exit__(self, *args: object) -> None:
+        return None
+
+
+class AgentTests(unittest.TestCase):
+    def test_normalise_http_agent_endpoint_accepts_action_or_game_paths(self) -> None:
+        self.assertEqual(
+            normalise_http_agent_endpoint("http://127.0.0.1:9101/act"),
+            "http://127.0.0.1:9101",
+        )
+        self.assertEqual(
+            normalise_http_agent_endpoint("http://127.0.0.1:9101/game/"),
+            "http://127.0.0.1:9101",
+        )
+
+    def test_http_agent_post_retries_and_sets_player_header(self) -> None:
+        calls = []
+
+        def fake_urlopen(request, timeout):  # type: ignore[no-untyped-def]
+            calls.append((request, timeout))
+            if len(calls) == 1:
+                raise URLError("temporary")
+            return FakeResponse({"ok": True})
+
+        agent = HttpAgent(
+            "http://agent.test/act",
+            player_id="p1",
+            retries=1,
+            retry_backoff_seconds=0,
+        )
+
+        with patch("texas_holdem.agents.urlopen", fake_urlopen):
+            payload = agent._post_json("/game", {"game_id": "g1"}, timeout_seconds=2)
+
+        self.assertEqual(payload, {"ok": True})
+        self.assertEqual(len(calls), 2)
+        self.assertEqual(calls[1][0].headers["X-player-id"], "p1")
+        self.assertEqual(calls[1][1], 2)
+
+
+if __name__ == "__main__":
+    unittest.main()