From 7079ee427ee8d58b0734ce98c82fa2bbfb066278 Mon Sep 17 00:00:00 2001
From: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>
Date: Sun, 11 Jun 2023 19:28:29 -0700
Subject: [PATCH] TST: Refactor slow test

---
 pandas/tests/test_algos.py | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/pandas/tests/test_algos.py b/pandas/tests/test_algos.py
index 6d09488df06e2..beddd59b0aa14 100644
--- a/pandas/tests/test_algos.py
+++ b/pandas/tests/test_algos.py
@@ -536,11 +536,9 @@ def test_objects(self):
         assert isinstance(result, np.ndarray)
 
     def test_object_refcount_bug(self):
-        lst = ["A", "B", "C", "D", "E"]
-        msg = "unique with argument that is not not a Series"
-        with tm.assert_produces_warning(FutureWarning, match=msg):
-            for i in range(1000):
-                len(algos.unique(lst))
+        lst = np.array(["A", "B", "C", "D", "E"], dtype=object)
+        for i in range(1000):
+            len(algos.unique(lst))
 
     def test_on_index_object(self):
         mindex = MultiIndex.from_arrays(