From 0d74275b228bc66f34b3852f9fa5e273e27a5114 Mon Sep 17 00:00:00 2001
From: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>
Date: Wed, 5 Jun 2024 14:42:24 -0700
Subject: [PATCH] Add fillna test with nan and null

---
 python/cudf/cudf/tests/test_replace.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/python/cudf/cudf/tests/test_replace.py b/python/cudf/cudf/tests/test_replace.py
index d77ec596271..9466398964a 100644
--- a/python/cudf/cudf/tests/test_replace.py
+++ b/python/cudf/cudf/tests/test_replace.py
@@ -6,6 +6,7 @@
 
 import numpy as np
 import pandas as pd
+import pyarrow as pa
 import pytest
 
 import cudf
@@ -1370,3 +1371,10 @@ def test_fillna_columns_multiindex():
     actual = gdf.fillna(10)
 
     assert_eq(expected, actual)
+
+
+def test_fillna_nan_and_null():
+    ser = cudf.Series(pa.array([float("nan"), None, 1.1]), nan_as_null=False)
+    result = ser.fillna(2.2)
+    expected = cudf.Series([2.2, 2.2, 1.1])
+    assert_eq(result, expected)