2.3 test function compat

Author: WillAyd

Diff for: pandas/tests/apply/test_invalid_arg.py

@@ -253,7 +253,7 @@ def test_agg_cython_table_raises_series(series, func, expected, using_infer_stri
     if func == "median" or func is np.nanmedian or func is np.median:
         msg = r"Cannot convert \['a' 'b' 'c'\] to numeric"
 
-    if using_infer_string and func == "cumprod":
+    if using_infer_string and func in (np.cumprod, np.nancumprod):
         expected = (expected, NotImplementedError)
 
     msg = (

Diff for: pandas/tests/apply/test_str.py

@@ -170,7 +170,7 @@ def test_agg_cython_table_transform_series(request, series, func, expected):
     # GH21224
     # test transforming functions in
     # pandas.core.base.SelectionMixin._cython_table (cumprod, cumsum)
-    if series.dtype == "string" and func == "cumsum":
+    if series.dtype == "string" and func in (np.cumsum, np.nancumsum):
         request.applymarker(
             pytest.mark.xfail(
                 raises=(TypeError, NotImplementedError),