diff --git a/topology-conversion/tests/test_unit/utils/test_typing_utils.py b/topology-conversion/tests/test_unit/utils/test_typing_utils.py
index 331f665..6777ed6 100644
--- a/topology-conversion/tests/test_unit/utils/test_typing_utils.py
+++ b/topology-conversion/tests/test_unit/utils/test_typing_utils.py
@@ -1,11 +1,15 @@
 import pytest
-from typing import List, Dict
+from typing import List, Dict, Generic, TypeVar
 from utils.typing_utils import is_generic, is_dict, is_list
 
+# Define type variables for testing
+T = TypeVar('T')
+
 @pytest.mark.parametrize("klass, expected", [
     (List[int], True),    # Test if List[int] is recognized as a generic class
     (Dict[str, int], True), # Test if Dict[str, int] is recognized as a generic class
     (int, False),          # Test if int is not recognized as a generic class
+    (Generic[T], True),   # Test if Generic[T] is recognized as a generic class
 ])
 def test_is_generic(klass, expected):
     """
@@ -20,6 +24,7 @@ def test_is_generic(klass, expected):
 @pytest.mark.parametrize("klass, expected", [
     (Dict[str, int], True),  # Test if Dict[str, int] is recognized as a dict
     (List[int], False),      # Test if List[int] is not recognized as a dict
+    (Dict[str, Dict[str, int]], True),  # Test nested dictionary
 ])
 def test_is_dict(klass, expected):
     """
@@ -34,6 +39,7 @@ def test_is_dict(klass, expected):
 @pytest.mark.parametrize("klass, expected", [
     (List[int], True),   # Test if List[int] is recognized as a list
     (Dict[str, int], False), # Test if Dict[str, int] is not recognized as a list
+    (List[List[int]], True),  # Test nested list
 ])
 def test_is_list(klass, expected):
     """