old_contents: # Tai Sakuma <tai.sakuma@gmail.com>
  import pytest
  
  from alphatwirl.selection.factories.expand import expand_path_cfg
  
  ##__________________________________________________________________||
  @pytest.fixture()
  def alias_dict():
      return {
          'var_cut': ('ev : {low} <= ev.var[0] < {high}', dict(low=10, high=200)),
      }
  
  ##__________________________________________________________________||
  params = [
      pytest.param(
          ('var_cut', dict(name='var_cut25', low=25)),
          dict(
              factory='LambdaStrFactory',
              lambda_str='ev : {low} <= ev.var[0] < {high}',
              name='var_cut25',
              low=25, high=200,
          ),
          id='example1'
      ),
  ]
  
  @pytest.mark.parametrize('path_cfg, expected', params)
  def test_alias(alias_dict, path_cfg, expected):
      actual = expand_path_cfg(path_cfg=path_cfg, alias_dict=alias_dict)
      assert expected == actual
  
      # give expanded one
      actual = expand_path_cfg(path_cfg=actual, alias_dict=alias_dict)
      assert expected == actual
  
  
  ##__________________________________________________________________||
  
new_contents: # Tai Sakuma <tai.sakuma@gmail.com>
  import pytest
  
  from alphatwirl.selection.factories.expand import expand_path_cfg
  
  ##__________________________________________________________________||
  @pytest.fixture()
  def alias_dict():
      return {
          'var_cut': ('ev : {low} <= ev.var[0] < {high}', dict(low=10, high=200)),
      }
  
  ##__________________________________________________________________||
  params = [
      pytest.param(
          ('var_cut', dict(name='var_cut25', low=25)),
          dict(
              factory='LambdaStrFactory',
              components=(),
              lambda_str='ev : {low} <= ev.var[0] < {high}',
              name='var_cut25',
              low=25, high=200,
          ),
          id='example1'
      ),
  ]
  
  @pytest.mark.parametrize('path_cfg, expected', params)
  def test_alias(alias_dict, path_cfg, expected):
      actual = expand_path_cfg(path_cfg=path_cfg, alias_dict=alias_dict)
      assert expected == actual
  
      # give expanded one
      actual = expand_path_cfg(path_cfg=actual, alias_dict=alias_dict)
      assert expected == actual
  
  
  ##__________________________________________________________________||
  
subject: update test_expand_path_cfg_example.py