code: def test_rating_with_zero_or_single_words_in_sentences(
      sentences, expected_ratings
  ):
      """
      This is an edge-case test when the sentence(s) have only one word or even zero words.
      This test makes me sure the logic will not break when such a case is encountered.
      """
      document = build_document(sentences)
      summarizer = TextRankSummarizer()
  
      ratings = summarizer.rate_sentences(document)
  
      assert ratings == {
          document.sentences[0]: pytest.approx(expected_ratings[0]),
          document.sentences[1]: pytest.approx(expected_ratings[1]),
      }
  
file_path: sumy/tests/test_summarizers/test_text_rank.py
imports: from __future__ import absolute_import
  from __future__ import division, print_function, unicode_literals
  import pytest
  import sumy.summarizers.text_rank
  from sumy.summarizers.text_rank import TextRankSummarizer
  from sumy.nlp.stemmers import Stemmer
  from sumy._compat import to_unicode
  from ..utils import build_document
label_desc: Use image node_id 7 for calling a global function with example usage: test_rating_with_zero_or_single_words_in_sentences(sentences, expected_ratings) without return types