updated the api test case

Author: Rafi-Microsoft

src/tests/api/api/test_api_routes.py

@@ -43,7 +43,16 @@ def test_fetch_filter_data_basic(create_test_client):
 def test_fetch_chart_data_with_filters_basic(create_test_client):
     with patch("api.api_routes.ChartService") as MockChartService:
         mock_instance = MockChartService.return_value
-        mock_instance.fetch_chart_data_with_filters = AsyncMock(return_value={"filtered": True})
+        mock_instance.fetch_chart_data_with_filters = AsyncMock(return_value=[
+    {
+        "id": "TOTAL_CALLS",
+        "chart_name": "Total Calls",
+        "chart_type": "card",
+        "chart_value": [
+            {"name": "Total Calls", "value": float("nan"), "unit_of_measurement": ""}
+        ]
+    }
+])
 
         client = create_test_client()
         payload = {
@@ -54,9 +63,18 @@ def test_fetch_chart_data_with_filters_basic(create_test_client):
             }
         }
         response = client.post("/fetchChartDataWithFilters", json=payload)
-
+        expected = [
+    {
+        "id": "TOTAL_CALLS",
+        "chart_name": "Total Calls",
+        "chart_type": "card",
+        "chart_value": [
+            {"name": "Total Calls", "value": None, "unit_of_measurement": ""}
+        ]
+    }
+]
         assert response.status_code == 200
-        assert response.json() == {"filtered": True}
+        assert response.json() == expected
 
 def test_fetch_chart_data_with_filters_error(create_test_client):
     with patch("api.api_routes.ChartService") as MockChartService: