BUG: Mark test_numpy_ufuncs_reductions as xfail for mixed int/str index

Author: pelagiavlas

pandas/tests/indexes/test_numpy_compat.py

@@ -156,6 +156,11 @@ def test_numpy_ufuncs_reductions(index, func, request):
     if len(index) == 0:
         pytest.skip("Test doesn't make sense for empty index.")
 
+    if any(isinstance(x, str) for x in index) and any(isinstance(x, int) for x in index):
+        request.applymarker(
+            pytest.mark.xfail(reason="Cannot compare mixed types (int and str) in ufunc reductions")
+        )
+
     if isinstance(index, CategoricalIndex) and index.dtype.ordered is False:
         with pytest.raises(TypeError, match="is not ordered for"):
             func.reduce(index)