code: def test_where_new_category_raises(self):
      ser = Series(Categorical(["a", "b", "c"]))
      msg = "Cannot setitem on a Categorical with a new category"
      with pytest.raises(TypeError, match=msg):
          ser.where([True, False, True], "d")
  
imports: import math
  import numpy
  import pytest
  from pandas import NA, Categorical, CategoricalIndex, Index, Interval, IntervalIndex, NaT, PeriodIndex, Series, Timedelta, Timestamp
  import pandas._testing
  import pandas.core.common
label_desc: Use image node_id 10 for calling the TestCategoricalIndexing obj's underlying member method code with example usage: obj.test_where_new_category_raises() without return types