EA attribute specifying whether copy=False is ignored

Author: Aniketsy

pandas/tests/extension/decimal/test_decimal.py

@@ -171,6 +171,10 @@ def test_fillna_limit_series(self, data_missing):
         ):
             super().test_fillna_limit_series(data_missing)
 
+    @pytest.mark.xfail(reason="copy keyword is missing")
+    def test_fillna_readonly(self, data_missing):
+        super().test_fillna_readonly(data_missing)
+
     def test_series_repr(self, data):
         # Overriding this base test to explicitly test that
         # the custom _formatter is used

pandas/tests/extension/test_interval.py

@@ -100,6 +100,10 @@ def test_fillna_limit_series(self, data_missing):
     def test_fillna_length_mismatch(self, data_missing):
         super().test_fillna_length_mismatch(data_missing)
 
+    @pytest.mark.xfail(reason="copy=False is not Implemented")
+    def test_fillna_readonly(self, data_missing):
+        super().test_fillna_readonly(data_missing)
+
     @pytest.mark.filterwarnings(
         "ignore:invalid value encountered in cast:RuntimeWarning"
     )