diff --git a/python/cudf/cudf/tests/test_categorical.py b/python/cudf/cudf/tests/test_categorical.py
index 03314bd7fdf..19a5cd4a49d 100644
--- a/python/cudf/cudf/tests/test_categorical.py
+++ b/python/cudf/cudf/tests/test_categorical.py
@@ -34,6 +34,15 @@ def _hide_deprecated_pandas_categorical_inplace_warnings(function_name):
         yield
 
 
+@contextmanager
+def _hide_cudf_safe_casting_warning():
+    with warnings.catch_warnings():
+        warnings.filterwarnings(
+            "ignore", "Can't safely cast column", category=UserWarning,
+        )
+        yield
+
+
 @pytest.fixture
 def pd_str_cat():
     categories = list("abc")
@@ -606,10 +615,7 @@ def test_categorical_set_categories_categoricals(data, new_categories):
     gd_data = cudf.from_pandas(pd_data)
 
     expected = pd_data.cat.set_categories(new_categories=new_categories)
-    with warnings.catch_warnings():
-        warnings.filterwarnings(
-            "ignore", "Can't safely cast column", category=UserWarning,
-        )
+    with _hide_cudf_safe_casting_warning():
         actual = gd_data.cat.set_categories(new_categories=new_categories)
 
     assert_eq(expected, actual)
@@ -617,10 +623,7 @@ def test_categorical_set_categories_categoricals(data, new_categories):
     expected = pd_data.cat.set_categories(
         new_categories=pd.Series(new_categories, dtype="category")
     )
-    with warnings.catch_warnings():
-        warnings.filterwarnings(
-            "ignore", "Can't safely cast column", category=UserWarning,
-        )
+    with _hide_cudf_safe_casting_warning():
         actual = gd_data.cat.set_categories(
             new_categories=cudf.Series(new_categories, dtype="category")
         )
@@ -733,11 +736,9 @@ def test_add_categories(data, add):
     gds = cudf.Series(data, dtype="category")
 
     expected = pds.cat.add_categories(add)
-    with warnings.catch_warnings():
-        warnings.filterwarnings(
-            "ignore", "Can't safely cast column", category=UserWarning,
-        )
+    with _hide_cudf_safe_casting_warning():
         actual = gds.cat.add_categories(add)
+
     assert_eq(
         expected.cat.codes, actual.cat.codes.astype(expected.cat.codes.dtype)
     )