class_docstr: Test case for CF reader.
class_docstr_tok: ["Test","case","for","CF","reader","."]
docstr: Check that fix modifier can handle empty list as modifier attribute.
docstr_tok: ["Check","that","fix","modifier","can","handle","empty","list","as","modifier","attribute","."]
code: def test_fix_modifier_attr(self):
      """Check that fix modifier can handle empty list as modifier attribute."""
      reader = SatpyCFFileHandler("filename", {}, {"filetype": "info"})
      ds_info = {"modifiers": []}
      reader.fix_modifier_attr(ds_info)
      assert ds_info["modifiers"] == ()
  
imports: import warnings
  from datetime import datetime
  import numpy
  import pytest
  import xarray
  from pyresample import AreaDefinition, SwathDefinition
  from satpy import Scene
  from satpy.dataset.dataid import WavelengthRange
  from satpy.readers.satpy_cf_nc import SatpyCFFileHandler
label_desc: Use image node_id 3 for calling the TestCFReader obj's underlying member method code with example usage: obj.test_fix_modifier_attr() without return types