Address errors due to pandas-dev/pandas#63231

Author: spencerkclark

xarray/tests/test_variable.py

@@ -74,11 +74,16 @@ def var():
     ],
 )
 def test_as_compatible_data_writeable(data):
-    pd.set_option("mode.copy_on_write", True)
+    # In pandas 3 the mode.copy_on_write option defaults to True, so the option
+    # setting logic can be removed once our minimum version of pandas is
+    # greater than or equal to 3.
+    if not has_pandas_3:
+        pd.set_option("mode.copy_on_write", True)
     # GH8843, ensure writeable arrays for data_vars even with
     # pandas copy-on-write mode
     assert as_compatible_data(data).flags.writeable
-    pd.reset_option("mode.copy_on_write")
+    if not has_pandas_3:
+        pd.reset_option("mode.copy_on_write")
 
 
 class VariableSubclassobjects(NamedArraySubclassobjects, ABC):