comment

Author: jbrockmendel

pandas/tests/extension/base/setitem.py

@@ -422,6 +422,7 @@ def test_setitem_frame_2d_values(self, data):
         df.iloc[:-1] = df.iloc[:-1].copy()
         tm.assert_frame_equal(df, orig)
 
+        # FIXME: Breaks for pyarrow float dtype bc df.values changes NAs to NaN
         df.iloc[:] = df.values
         tm.assert_frame_equal(df, orig)