fix: improve maintenance and synchronize live conversations

backend/tests/utils/test_agno_utils.py

@@ -15,12 +15,9 @@ limitations under the License.
 """
 
 import pytest
-import sys
 from unittest.mock import patch, MagicMock, AsyncMock
-from agno.agent import Agent
 from app.utils import agno_utils
 from fastapi import HTTPException
-import importlib
 
 
 class TestCreateModel:
@@ -179,9 +176,17 @@ class TestCreateModel:
 
     def test_create_model_google(self):
         """Test creating Google Gemini model"""
-        with patch("agno.models.google.Gemini") as mock_gemini:
-            mock_model = MagicMock()
-            mock_gemini.return_value = mock_model
+        import sys
+        from types import ModuleType
+        import agno.models
+
+        google_module = ModuleType("agno.models.google")
+        google_module.Gemini = MagicMock()
+        mock_model = MagicMock()
+        google_module.Gemini.return_value = mock_model
+
+        with patch.dict(sys.modules, {"agno.models.google": google_module}), \
+             patch.object(agno.models, "google", google_module, create=True):
             
             result = agno_utils.create_model(
                 model_type="GOOGLE",
@@ -189,12 +194,13 @@ class TestCreateModel:
                 model_name="gemini-pro"
             )
             
-            mock_gemini.assert_called_once_with(
+            google_module.Gemini.assert_called_once_with(
                 api_key="test-api-key",
                 id="gemini-pro",
                 max_output_tokens=1000  # Gemini's agno model uses max_output_tokens
             )
             assert result == mock_model
+            assert result == mock_model
 
     def test_create_model_googlevertex(self):
         """Test creating Google Vertex AI model (should trigger import error)"""
@@ -573,4 +579,4 @@ class TestEdgeCases:
             result = await agno_utils.test_model_api_key("", "", "")
 
             mock_create_model.assert_called_once_with("", "", "", base_url=None)
-            assert result is True 
+            assert result is True

backend/tests/utils/test_guardrail_runtime.py

@@ -18,7 +18,7 @@ from unittest.mock import patch
 
 import pytest
 
-from app.agents.guardrail_policy import CANARY_STRINGS, looks_like_scope_refusal
+from app.agents.guardrail_policy import CANARY_STRINGS
 from app.utils.guardrail_runtime import (
     BLOCK_REPLY,
     LEAK_REPLY,

backend/tests/utils/test_response_parser.py

@@ -14,7 +14,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 """
 
-import pytest
 from unittest.mock import MagicMock
 from app.utils.response_parser import (
     GENERIC_ERROR_MESSAGE,