test(game-mode): cover Ollama handoff client

tests/test_game_mode.py

@@ -207,3 +207,45 @@ def test_game_mode_status_degrades_to_fallback_when_dependencies_fail(monkeypatc
     assert status["inference_path"] == "fallback"
     assert "api down" in status["error"]
     assert "ollama down" in status["error"]
+
+
+def test_game_mode_ollama_client_and_loaded_model_detection(monkeypatch) -> None:
+    monkeypatch.setattr(game_mode_module, "settings", _handoff_settings())
+    calls: list[tuple[str, str, object]] = []
+
+    class FakeResponse:
+        def __init__(self, payload):
+            self.payload = payload
+
+        def raise_for_status(self):
+            return None
+
+        def json(self):
+            return self.payload
+
+    class FakeClient:
+        def __init__(self, timeout):
+            calls.append(("timeout", "", timeout))
+
+        def __enter__(self):
+            return self
+
+        def __exit__(self, *_args):
+            return False
+
+        def get(self, url):
+            calls.append(("get", url, None))
+            return FakeResponse({"models": [{"model": "gpt-oss:20b"}]})
+
+        def post(self, url, json):
+            calls.append(("post", url, json))
+            return FakeResponse({"response": "READY"})
+
+    monkeypatch.setattr(game_mode_module.httpx, "Client", FakeClient)
+    svc = GameModeService()
+
+    assert svc._ollama_get("/api/ps")["models"]
+    assert svc._ollama_post("/api/generate", {"prompt": "test"}) == {"response": "READY"}
+    assert svc._model_loaded() is True
+    assert ("get", "http://ollama.test:11434/api/ps", None) in calls
+    assert ("post", "http://ollama.test:11434/api/generate", {"prompt": "test"}) in calls