fix pytest error

Author: charlesdong1991

pandas/tests/test_strings.py

@@ -3445,9 +3445,8 @@ def test_replace_without_specifying_regex_parameter(self):
         values = Series(['a.c'])
         # GH: 24804
         # test future deprecation warning
-        msg = "'.' is interpreted as a literal"
-        with pytest.warns(FutureWarning, match=msg):
+        with tm.assert_produces_warning(FutureWarning,
+                                        check_stacklevel=False):
             result = values.str.replace('.', 'b')
         expected = Series(['abc'])
         tm.assert_series_equal(result, expected)
-