Fix OCI test: add missing mock_builder fixture and asyncio marker

Author: fede-kamel

packages/nvidia_nat_core/tests/nat/llm/test_oci_llm.py

@@ -18,11 +18,19 @@
 from unittest.mock import MagicMock
 from unittest.mock import patch
 
+import pytest
+
 from nat.builder.llm import LLMProviderInfo
 from nat.llm.oci_llm import OCIModelConfig
 from nat.llm.oci_llm import oci_llm
 
 
+@pytest.fixture(name="mock_builder")
+def fixture_mock_builder():
+    """Create a mock builder."""
+    return MagicMock()
+
+
 def test_oci_model_config_defaults():
     config = OCIModelConfig(model_name="nvidia/Llama-3.1-Nemotron-Nano-8B-v1")
 
@@ -41,6 +49,7 @@ def test_oci_model_config_accepts_endpoint_aliases():
     assert config.endpoint == "https://inference.generativeai.us-chicago-1.oci.oraclecloud.com"
 
 
+@pytest.mark.asyncio
 async def test_oci_llm_provider_yields_provider_info(mock_builder):
     config = OCIModelConfig(
         model_name="nvidia/Llama-3.1-Nemotron-Nano-8B-v1",