code: def test_comparisons(self, data, reverse, base):
      cat_rev = Series(
          Categorical(data, categories=reverse, ordered=True)
      )
      cat_rev_base = Series(
          Categorical(base, categories=reverse, ordered=True)
      )
      cat = Series(Categorical(data, ordered=True))
      cat_base = Series(
          Categorical(base, categories=cat.cat.categories, ordered=True)
      )
      s = Series(base, dtype=object if base == list("bbb") else None)
      a = np.array(base)
  
      # comparisons need to take categories ordering into account
      res_rev = cat_rev > cat_rev_base
      exp_rev = Series([True, False, False])
      tm.assert_series_equal(res_rev, exp_rev)
  
      res_rev = cat_rev < cat_rev_base
      exp_rev = Series([False, False, True])
      tm.assert_series_equal(res_rev, exp_rev)
  
      res = cat > cat_base
      exp = Series([False, False, True])
      tm.assert_series_equal(res, exp)
  
      scalar = base[1]
      res = cat > scalar
      exp = Series([False, False, True])
      exp2 = cat.values > scalar
      tm.assert_series_equal(res, exp)
      tm.assert_numpy_array_equal(res.values, exp2)
      res_rev = cat_rev > scalar
      exp_rev = Series([True, False, False])
      exp_rev2 = cat_rev.values > scalar
      tm.assert_series_equal(res_rev, exp_rev)
      tm.assert_numpy_array_equal(res_rev.values, exp_rev2)
  
      # Only categories with same categories can be compared
      msg = "Categoricals can only be compared if 'categories' are the same"
      with pytest.raises(TypeError, match=msg):
          cat > cat_rev
  
      # categorical cannot be compared to Series or numpy array, and also
      # not the other way around
      msg = (
          "Cannot compare a Categorical for op __gt__ with type "
          r"<class 'numpy\.ndarray'>"
      )
      with pytest.raises(TypeError, match=msg):
          cat > s
      with pytest.raises(TypeError, match=msg):
          cat_rev > s
      with pytest.raises(TypeError, match=msg):
          cat > a
      with pytest.raises(TypeError, match=msg):
          cat_rev > a
  
      with pytest.raises(TypeError, match=msg):
          s < cat
      with pytest.raises(TypeError, match=msg):
          s < cat_rev
  
      with pytest.raises(TypeError, match=msg):
          a < cat
      with pytest.raises(TypeError, match=msg):
          a < cat_rev
  
imports: import numpy
  import pytest
  import pandas
  from pandas import Categorical, DataFrame, Series, Timestamp, date_range
  import pandas._testing
label_desc: Use image node_id 10 for calling the TestCategoricalOps obj's underlying member method code with example usage: obj.test_comparisons(data, reverse, base) without return types