add coments

Author: kotamatsuoka

pandas/tests/extension/base/methods.py

@@ -29,6 +29,7 @@ def test_value_counts(self, all_data, dropna):
         self.assert_series_equal(result, expected)
 
     def test_value_counts_with_normalize(self, data):
+        # GH 33172
         data = data[:10].unique()
         values = np.array(data[~data.isna()])
 

pandas/tests/extension/test_numpy.py

@@ -199,7 +199,7 @@ class TestMethods(BaseNumPyTests, base.BaseMethodsTests):
     def test_value_counts(self, all_data, dropna):
         pass
 
-    @pytest.mark.xfail(reason="not working")
+    @pytest.mark.xfail(reason="not working. will be covered by #32028")
     def test_value_counts_with_normalize(self, data):
         return super().test_value_counts_with_normalize(data)