code: def test_location_method_with_empty_document():
      summarizer = EdmundsonSummarizer()
      summarizer.null_words = (
          "na",
          "nb",
          "nc",
      )
  
      sentences = summarizer.location_method(build_document(), 10)
  
      assert list(map(to_unicode, sentences)) == []
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import pytest
  from sumy._compat import to_unicode
  from sumy.summarizers.edmundson import EdmundsonSummarizer
  from ..utils import build_document, build_document_from_string
label_desc: Use image node_id 26 for calling a global function with example usage: test_location_method_with_empty_document() without return types